The document discusses automotive radar systems, including how they use radio signals to detect objects at a distance and help features like adaptive cruise control. It covers the components of a radar system like the antenna and processing unit, how radar detects objects through timing signals, and applications in driver assistance systems. Radar systems are becoming more important for advanced features in self-driving cars.
OpenSynergy exhibiting at Berlin Tech Job Fair Autumn 2019TechMeetups
OpenSynergy develops automotive software solutions, including hypervisor platforms and communication platforms. Their product portfolio includes components for infotainment, driver information, driver assistance, and connectivity. OpenSynergy has over 170 employees focused on automotive embedded software. Their software products include hypervisor SDKs, Bluetooth stacks, and device management solutions.
The document provides an overview of the DAB+ digital radio system, including its features and technical specifications. It describes the DAB family of standards, the ensemble and service structure, audio and data coding methods, emergency features, and system architectures. Key points include DAB+'s improved audio quality and capacity over DAB, its flexible ensemble and network structures, support for multimedia services, and emergency alerting capabilities.
CPUs have multiple cores and are suited for a variety of tasks requiring low latency, while GPUs have many smaller cores optimized for parallel processing. GPUs can perform thousands of basic operations simultaneously. Though CPUs and GPUs both process data, CPUs are designed for serial tasks and general computing while GPUs are specialized for graphics processing and parallel tasks like those in AI and supercomputing. Efficient parallel processing is what allows GPUs to outperform CPUs for certain applications.
4 matched filters and ambiguity functions for radar signals-2Solo Hermelin
Matched filters (Part 2of 2) maximizes the output signal-to-noise ratio for a known radar signal at a predefined time.
For comments please contact me at solo.hermelin@gmail.com.
For more presentations on different subjects visit my website at http://www.solohermelin.com.
The document discusses the history and purpose of cockpit voice recorders (CVRs). It notes that CVRs were developed in the 1950s to record audio from the cockpit and have advanced from analog tapes to digital solid-state memory. International regulations now require that large commercial aircraft be equipped with CVRs that can record the last 2 hours of flight. CVR recordings are important for investigating aircraft accidents and incidents.
For the full video of this presentation, please visit:
https://www.embedded-vision.com/platinum-members/nxp/embedded-vision-training/videos/pages/may-2018-embedded-vision-summit-roy
For more information about embedded vision, please visit:
http://www.embedded-vision.com
Arunesh Roy, Radar Algorithms Architect at NXP Semiconductors, presents the "Understanding Automotive Radar: Present and Future," tutorial at the May 2018 Embedded Vision Summit.
Thanks to its proven, all-weather range detection capability, radar is increasingly used for driver assistance functions such as automatic emergency braking and adaptive cruise control. Radar is considered a crucial sensing technology for autonomous vehicles not only for its range finding ability, but also because it can be used to determine target velocity and target angle. In this tutorial, Roy introduces the basic principles of operation of a radar system, highlighting its main parameters and comparing radar with computer vision and other types of sensors typically found in ADAS and autonomous vehicles.
After examining the features and the limitations of current automotive radar systems, Roy discusses how automotive radar is evolving, particularly in light of safety performance assessment programs such as the European New Car Assessment Programme (eNCAP). He concludes with a discussion of how radar systems may compete with or complement vision-based sensors in future ADAS-equipped and autonomous vehicles.
4 matched filters and ambiguity functions for radar signalsSolo Hermelin
Matched filters (Part 1 of 2) maximizes the output signal-to-noise ratio for a known radar signal at a predefined time.
For comments please contact me at solo.hermelin@gmail.com.
For more presentations on different subjects visit my website at http://www.solohermelin.com.
The document discusses automotive radar systems, including how they use radio signals to detect objects at a distance and help features like adaptive cruise control. It covers the components of a radar system like the antenna and processing unit, how radar detects objects through timing signals, and applications in driver assistance systems. Radar systems are becoming more important for advanced features in self-driving cars.
OpenSynergy exhibiting at Berlin Tech Job Fair Autumn 2019TechMeetups
OpenSynergy develops automotive software solutions, including hypervisor platforms and communication platforms. Their product portfolio includes components for infotainment, driver information, driver assistance, and connectivity. OpenSynergy has over 170 employees focused on automotive embedded software. Their software products include hypervisor SDKs, Bluetooth stacks, and device management solutions.
The document provides an overview of the DAB+ digital radio system, including its features and technical specifications. It describes the DAB family of standards, the ensemble and service structure, audio and data coding methods, emergency features, and system architectures. Key points include DAB+'s improved audio quality and capacity over DAB, its flexible ensemble and network structures, support for multimedia services, and emergency alerting capabilities.
CPUs have multiple cores and are suited for a variety of tasks requiring low latency, while GPUs have many smaller cores optimized for parallel processing. GPUs can perform thousands of basic operations simultaneously. Though CPUs and GPUs both process data, CPUs are designed for serial tasks and general computing while GPUs are specialized for graphics processing and parallel tasks like those in AI and supercomputing. Efficient parallel processing is what allows GPUs to outperform CPUs for certain applications.
4 matched filters and ambiguity functions for radar signals-2Solo Hermelin
Matched filters (Part 2of 2) maximizes the output signal-to-noise ratio for a known radar signal at a predefined time.
For comments please contact me at solo.hermelin@gmail.com.
For more presentations on different subjects visit my website at http://www.solohermelin.com.
The document discusses the history and purpose of cockpit voice recorders (CVRs). It notes that CVRs were developed in the 1950s to record audio from the cockpit and have advanced from analog tapes to digital solid-state memory. International regulations now require that large commercial aircraft be equipped with CVRs that can record the last 2 hours of flight. CVR recordings are important for investigating aircraft accidents and incidents.
For the full video of this presentation, please visit:
https://www.embedded-vision.com/platinum-members/nxp/embedded-vision-training/videos/pages/may-2018-embedded-vision-summit-roy
For more information about embedded vision, please visit:
http://www.embedded-vision.com
Arunesh Roy, Radar Algorithms Architect at NXP Semiconductors, presents the "Understanding Automotive Radar: Present and Future," tutorial at the May 2018 Embedded Vision Summit.
Thanks to its proven, all-weather range detection capability, radar is increasingly used for driver assistance functions such as automatic emergency braking and adaptive cruise control. Radar is considered a crucial sensing technology for autonomous vehicles not only for its range finding ability, but also because it can be used to determine target velocity and target angle. In this tutorial, Roy introduces the basic principles of operation of a radar system, highlighting its main parameters and comparing radar with computer vision and other types of sensors typically found in ADAS and autonomous vehicles.
After examining the features and the limitations of current automotive radar systems, Roy discusses how automotive radar is evolving, particularly in light of safety performance assessment programs such as the European New Car Assessment Programme (eNCAP). He concludes with a discussion of how radar systems may compete with or complement vision-based sensors in future ADAS-equipped and autonomous vehicles.
4 matched filters and ambiguity functions for radar signalsSolo Hermelin
Matched filters (Part 1 of 2) maximizes the output signal-to-noise ratio for a known radar signal at a predefined time.
For comments please contact me at solo.hermelin@gmail.com.
For more presentations on different subjects visit my website at http://www.solohermelin.com.
This document provides an overview of the Android operating system. It discusses Android as the most advanced mobile OS, lists the trending mobile OSes, and describes the history and versions of Android. Key features of Android like its use of Linux kernel, Dalvik virtual machine, connectivity options, and hardware support are explained. Comparisons are made between Android and other mobile OSes like Symbian, iOS, Windows Phone in terms of usage statistics, development processes, and reasons for their advantages. The future possibilities of Android becoming the dominant mobile OS are also outlined.
Embitel has expertise in developing Android Infotainment Projects, embedded software/hardware developers and infotainment testing. As your infotainment solution partner, we provide end-to-end support throughout your product development roadmap – technology strategy, UX design, infotainment software and hardware development and support.
Single Frequency Networks for FM Broadcast (SFNs)Nautel
This document provides an overview of Single Frequency Networks (SFNs) for FM radio broadcasting:
- SFNs allow two or more FM transmitters broadcasting the same content on the same frequency to overlap coverage areas, improving spectrum efficiency and creating a seamless listening experience for drivers.
- Precise synchronization of carrier frequency, audio content, and subcarriers like RDS is required to avoid interference in overlap zones. Nautel's digital exciters and GPS synchronization help achieve this.
- An example SFN installation was demonstrated using Nautel exciters, an uncompressed AES/EBU audio link, and GPS receivers to synchronize signals across sites. With proper timing, interference zones sound similar to multipath distortion.
Flutter is a cross-platform framework for building mobile apps using a single codebase. It uses Dart as its programming language and compiles code to native ARM machine code. Flutter provides its own set of customizable widgets that are rendered using its own rendering engine instead of relying on native widgets. This allows Flutter apps to have native performance while sharing code across platforms. Flutter aims to provide fast development and a productive workflow through features like hot reload that updates the app in real-time.
The document provides details about Qualcomm Snapdragon processors across various generations from S1 to 800 series. It describes the key specifications of each including the semiconductor technology, CPU, GPU, memory support and other features. The later generations include enhancements such as improved CPU and GPU performance, support for higher display resolutions and memory speeds, and newer connectivity standards.
Radio receivers pick up desired signals, reject unwanted signals, and demodulate carrier signals to recover original modulating signals. They intercept incoming modulated signals, select desired signals while rejecting others, amplify the selected RF signal, detect the modulated signal, amplify the modulating frequency signal. Receivers can be classified based on the application (AM, FM, communication, television, radar) or design (tuned radio frequency (TRF), super-heterodyne). The super-heterodyne receiver overcomes limitations of TRF receivers by downconverting RF signals to a lower intermediate frequency, allowing for better stability, selectivity and consistent bandwidth over frequency ranges.
The smart bus system presentation outlines a system that uses GPS, GPRS, and GSM modules along with .NET to track bus locations and provide real-time updates to passengers. The system includes e-bus stops that communicate with the bus unit and cloud server to share location, time, weather and other key information in 3 sentences or less.
For the full video of this presentation, please visit:
http://www.embedded-vision.com/platinum-members/nxp/embedded-vision-training/videos/pages/may-2016-embedded-vision-summit
For more information about embedded vision, please visit:
http://www.embedded-vision.com
Tom Wilson, ADAS Product Line Manager at NXP Semiconductors, presents the "Sensing Technologies for the Autonomous Vehicle" tutorial at the May 2016 Embedded Vision Summit.
Autonomous vehicles will necessarily utilize a range of sensing technologies to see and react to their surroundings. We are witnessing dramatic advances not just for embedded vision, but also in complementary technologies like radar and LiDAR. Each of these sensing technologies provides unique capabilities for giving a vehicle a complete view of its surroundings. This presentation compares vision-based sensing with complementary sensing technologies, explores key trends in sensors for autonomous vehicles, and analyses challenges and opportunities in fusing the output of multiple sensor technologies to enable robust perception and mapping for autonomous vehicles.
Radio waves can propagate through free space or be guided by surfaces like the ground or the ionosphere. The key layers of the ionosphere that influence radio propagation are the D, E, and F layers. The F layer, consisting of the F1 and F2 sublayers, is the most important for long-distance radio communications as it remains partially ionized at night. Radio signals can be reflected or refracted by the ionized layers of the ionosphere, allowing skywave propagation over long distances beyond the horizon.
- Amplitude modulation (AM) is a technique used to encode information such as audio onto a radio frequency carrier wave by varying the wave's amplitude. The amplitude of the carrier wave is increased and decreased based on the instantaneous intensity of the sound being represented.
- There are two main methods for generating AM signals - high-level modulation and low-level modulation. High-level uses power amplification before modulation while low-level modulates a lower power signal.
- Single-sideband modulation improves spectrum efficiency by transmitting only one sideband along with a reduced carrier. It provides a 3dB improvement in signal-to-noise ratio over AM.
This document discusses several topics related to Android Automotive:
1. It provides an overview of the Android Automotive architecture and key system services like the Car System Service.
2. It describes the available car app APIs for both general app development and internal AOSP apps.
3. Several default car apps that come with AOSP are mentioned, which provide examples of how to design custom apps.
4. Other topics covered include the Exterior View System, vehicle properties, audio, power management, storage wear leveling, and boot time optimizations.
This document discusses in-vehicle infotainment systems. It describes the evolution from early radios to modern systems that provide entertainment, information, and phone services. Entertainment services include audio playback from various sources as well as video playback. Information services discussed include navigation, backup cameras, traffic/weather updates, and vehicle diagnostics. Phone services allow for hands-free calling via Bluetooth connectivity. The document concludes that infotainment systems provide better access to media and information through an in-dash display screen.
Flutter is Google's mobile app SDK for building high-performance, cross-platform applications. It uses Dart as its programming language. Flutter compiles code to native ARM machine code rather than using an intermediary language. This allows Flutter apps to have native performance. Flutter provides a rich set of widgets that can be customized and combined to build user interfaces. Everything in Flutter is represented as a widget, allowing for great flexibility and customization of UIs. Flutter also supports features like hot reload that improve developer productivity.
MaxEye Technologies is a Bangalore based company with strong expertise in developing test and measurement solutions for infotainment test system. We are an Alliance Partner of National Instruments. MaxEye Technologies provides complete in-car infotainment test solution using NI PXI hardware, Software and MaxEye DVB toolkits.
Our infotainment test solutions are proven and already used by leading CAR manufacturers.
Snapdragon is a family of mobile systems on a chip (SoC) by Qualcomm. Qualcomm considers Snapdragon a "platform" for use in smartphones, tablets, and smartbook devices.
ARM is a family of RISC-based microprocessors and microcontrollers designed by ARM Inc., Cambridge, England.
ARM chips are high-speed processors that are known for their small die size and low power requirements.
This document discusses the history and technology of MP3 players. It explains that MP3 players play digital audio files compressed in MP3 format, which was developed in the 1990s. Early MP3 players were unsuccessful, but WinPlay3 and later the AMP MP3 Playback Engine were able to play audio in real time. Justin Frankel helped popularize MP3 players with Winamp. There are different types of MP3 players that use flash memory, hard drives, or burn MP3 files to discs. MP3 players compress audio files to reduce their size without significantly degrading sound quality.
Google Fuchsia is a new capability-based operating system being developed by Google as a replacement for current OSs like Android and Chrome OS. Unlike prior Google OSs which are based on Linux, Fuchsia uses a new microkernel called Zircon. Fuchsia is designed to run on various devices from smartwatches to cars and aims to be more consistently upgradeable than other OSs. It uses the Dart programming language and Flutter SDK which allows cross-platform development for Fuchsia, Android, and iOS.
This presentation helps you understand how Browser Sandbox protects your system against malicious Internet downloads, which most of the times, occurs automatically on user machine.
Lundi de l'IE - 8 décembre 2014 - Renaud Lifchitz, Oppida - L'environnement s...Renaud Lifchitz
Cette présentation abordera les problématiques de plus en plus fréquentes de sécurité rencontrées avec la multiplication des technologies radio (Wi-Fi, Bluetooth, 4G…) qui entourent le particulier comme l’entreprise. Elle détaillera quelles sont les principales attaques radio, et présentera de manière très concrète la technologie de radio logicielle, à la fois comme outil d’audit et d’attaque.
Elle offrira des perspectives sur le futur des technologies radio et un éclairage sur les mesures qui doivent les entourer.
Intervenant :
Renaud Lifchitz est un expert français en sécurité informatique ayant une expérience de 9 ans en tant qu’auditeur et formateur, principalement dans le secteur bancaire. Il s’intéresse tout particulièrement à la cryptographie, au développement sécurisé et aux protocoles de communication sans fil. Il a été intervenant dans de nombreuses conférences internationales : CCC 2010 (Allemagne), Hackito Ergo Sum 2010, 2012 et 2014 (Paris), DeepSec 2012 (Autriche), Shakacon 2012 (Etats-Unis), 8dot8 2013 (Chili) et a formé plus de 1800 personnes.
This document provides an overview of the Android operating system. It discusses Android as the most advanced mobile OS, lists the trending mobile OSes, and describes the history and versions of Android. Key features of Android like its use of Linux kernel, Dalvik virtual machine, connectivity options, and hardware support are explained. Comparisons are made between Android and other mobile OSes like Symbian, iOS, Windows Phone in terms of usage statistics, development processes, and reasons for their advantages. The future possibilities of Android becoming the dominant mobile OS are also outlined.
Embitel has expertise in developing Android Infotainment Projects, embedded software/hardware developers and infotainment testing. As your infotainment solution partner, we provide end-to-end support throughout your product development roadmap – technology strategy, UX design, infotainment software and hardware development and support.
Single Frequency Networks for FM Broadcast (SFNs)Nautel
This document provides an overview of Single Frequency Networks (SFNs) for FM radio broadcasting:
- SFNs allow two or more FM transmitters broadcasting the same content on the same frequency to overlap coverage areas, improving spectrum efficiency and creating a seamless listening experience for drivers.
- Precise synchronization of carrier frequency, audio content, and subcarriers like RDS is required to avoid interference in overlap zones. Nautel's digital exciters and GPS synchronization help achieve this.
- An example SFN installation was demonstrated using Nautel exciters, an uncompressed AES/EBU audio link, and GPS receivers to synchronize signals across sites. With proper timing, interference zones sound similar to multipath distortion.
Flutter is a cross-platform framework for building mobile apps using a single codebase. It uses Dart as its programming language and compiles code to native ARM machine code. Flutter provides its own set of customizable widgets that are rendered using its own rendering engine instead of relying on native widgets. This allows Flutter apps to have native performance while sharing code across platforms. Flutter aims to provide fast development and a productive workflow through features like hot reload that updates the app in real-time.
The document provides details about Qualcomm Snapdragon processors across various generations from S1 to 800 series. It describes the key specifications of each including the semiconductor technology, CPU, GPU, memory support and other features. The later generations include enhancements such as improved CPU and GPU performance, support for higher display resolutions and memory speeds, and newer connectivity standards.
Radio receivers pick up desired signals, reject unwanted signals, and demodulate carrier signals to recover original modulating signals. They intercept incoming modulated signals, select desired signals while rejecting others, amplify the selected RF signal, detect the modulated signal, amplify the modulating frequency signal. Receivers can be classified based on the application (AM, FM, communication, television, radar) or design (tuned radio frequency (TRF), super-heterodyne). The super-heterodyne receiver overcomes limitations of TRF receivers by downconverting RF signals to a lower intermediate frequency, allowing for better stability, selectivity and consistent bandwidth over frequency ranges.
The smart bus system presentation outlines a system that uses GPS, GPRS, and GSM modules along with .NET to track bus locations and provide real-time updates to passengers. The system includes e-bus stops that communicate with the bus unit and cloud server to share location, time, weather and other key information in 3 sentences or less.
For the full video of this presentation, please visit:
http://www.embedded-vision.com/platinum-members/nxp/embedded-vision-training/videos/pages/may-2016-embedded-vision-summit
For more information about embedded vision, please visit:
http://www.embedded-vision.com
Tom Wilson, ADAS Product Line Manager at NXP Semiconductors, presents the "Sensing Technologies for the Autonomous Vehicle" tutorial at the May 2016 Embedded Vision Summit.
Autonomous vehicles will necessarily utilize a range of sensing technologies to see and react to their surroundings. We are witnessing dramatic advances not just for embedded vision, but also in complementary technologies like radar and LiDAR. Each of these sensing technologies provides unique capabilities for giving a vehicle a complete view of its surroundings. This presentation compares vision-based sensing with complementary sensing technologies, explores key trends in sensors for autonomous vehicles, and analyses challenges and opportunities in fusing the output of multiple sensor technologies to enable robust perception and mapping for autonomous vehicles.
Radio waves can propagate through free space or be guided by surfaces like the ground or the ionosphere. The key layers of the ionosphere that influence radio propagation are the D, E, and F layers. The F layer, consisting of the F1 and F2 sublayers, is the most important for long-distance radio communications as it remains partially ionized at night. Radio signals can be reflected or refracted by the ionized layers of the ionosphere, allowing skywave propagation over long distances beyond the horizon.
- Amplitude modulation (AM) is a technique used to encode information such as audio onto a radio frequency carrier wave by varying the wave's amplitude. The amplitude of the carrier wave is increased and decreased based on the instantaneous intensity of the sound being represented.
- There are two main methods for generating AM signals - high-level modulation and low-level modulation. High-level uses power amplification before modulation while low-level modulates a lower power signal.
- Single-sideband modulation improves spectrum efficiency by transmitting only one sideband along with a reduced carrier. It provides a 3dB improvement in signal-to-noise ratio over AM.
This document discusses several topics related to Android Automotive:
1. It provides an overview of the Android Automotive architecture and key system services like the Car System Service.
2. It describes the available car app APIs for both general app development and internal AOSP apps.
3. Several default car apps that come with AOSP are mentioned, which provide examples of how to design custom apps.
4. Other topics covered include the Exterior View System, vehicle properties, audio, power management, storage wear leveling, and boot time optimizations.
This document discusses in-vehicle infotainment systems. It describes the evolution from early radios to modern systems that provide entertainment, information, and phone services. Entertainment services include audio playback from various sources as well as video playback. Information services discussed include navigation, backup cameras, traffic/weather updates, and vehicle diagnostics. Phone services allow for hands-free calling via Bluetooth connectivity. The document concludes that infotainment systems provide better access to media and information through an in-dash display screen.
Flutter is Google's mobile app SDK for building high-performance, cross-platform applications. It uses Dart as its programming language. Flutter compiles code to native ARM machine code rather than using an intermediary language. This allows Flutter apps to have native performance. Flutter provides a rich set of widgets that can be customized and combined to build user interfaces. Everything in Flutter is represented as a widget, allowing for great flexibility and customization of UIs. Flutter also supports features like hot reload that improve developer productivity.
MaxEye Technologies is a Bangalore based company with strong expertise in developing test and measurement solutions for infotainment test system. We are an Alliance Partner of National Instruments. MaxEye Technologies provides complete in-car infotainment test solution using NI PXI hardware, Software and MaxEye DVB toolkits.
Our infotainment test solutions are proven and already used by leading CAR manufacturers.
Snapdragon is a family of mobile systems on a chip (SoC) by Qualcomm. Qualcomm considers Snapdragon a "platform" for use in smartphones, tablets, and smartbook devices.
ARM is a family of RISC-based microprocessors and microcontrollers designed by ARM Inc., Cambridge, England.
ARM chips are high-speed processors that are known for their small die size and low power requirements.
This document discusses the history and technology of MP3 players. It explains that MP3 players play digital audio files compressed in MP3 format, which was developed in the 1990s. Early MP3 players were unsuccessful, but WinPlay3 and later the AMP MP3 Playback Engine were able to play audio in real time. Justin Frankel helped popularize MP3 players with Winamp. There are different types of MP3 players that use flash memory, hard drives, or burn MP3 files to discs. MP3 players compress audio files to reduce their size without significantly degrading sound quality.
Google Fuchsia is a new capability-based operating system being developed by Google as a replacement for current OSs like Android and Chrome OS. Unlike prior Google OSs which are based on Linux, Fuchsia uses a new microkernel called Zircon. Fuchsia is designed to run on various devices from smartwatches to cars and aims to be more consistently upgradeable than other OSs. It uses the Dart programming language and Flutter SDK which allows cross-platform development for Fuchsia, Android, and iOS.
This presentation helps you understand how Browser Sandbox protects your system against malicious Internet downloads, which most of the times, occurs automatically on user machine.
Lundi de l'IE - 8 décembre 2014 - Renaud Lifchitz, Oppida - L'environnement s...Renaud Lifchitz
Cette présentation abordera les problématiques de plus en plus fréquentes de sécurité rencontrées avec la multiplication des technologies radio (Wi-Fi, Bluetooth, 4G…) qui entourent le particulier comme l’entreprise. Elle détaillera quelles sont les principales attaques radio, et présentera de manière très concrète la technologie de radio logicielle, à la fois comme outil d’audit et d’attaque.
Elle offrira des perspectives sur le futur des technologies radio et un éclairage sur les mesures qui doivent les entourer.
Intervenant :
Renaud Lifchitz est un expert français en sécurité informatique ayant une expérience de 9 ans en tant qu’auditeur et formateur, principalement dans le secteur bancaire. Il s’intéresse tout particulièrement à la cryptographie, au développement sécurisé et aux protocoles de communication sans fil. Il a été intervenant dans de nombreuses conférences internationales : CCC 2010 (Allemagne), Hackito Ergo Sum 2010, 2012 et 2014 (Paris), DeepSec 2012 (Autriche), Shakacon 2012 (Etats-Unis), 8dot8 2013 (Chili) et a formé plus de 1800 personnes.
Suivre les avions des lignes avec un Raspberry PiMembré Guillaume
En hackant une clé USB de réception TNT, La Radio Logicielle (ou SDR) est à la portée de tous. Il est alors possible d'écouter les balises de positionnement des avions de lignes sur un rayon de plusieurs dizaines de km avec une simple antenne. Mais, connaissez vous les différentes bandes de fréquences (Wifi, GSM, FM, Avion…) ? Voulez vous connaitre le fonctionnement du projet comme https://www.flightradar24.com ? Nous verrons comment mettre en oeuvre un tel projet avec du matériel grand public et accessible comme un Raspberry Pi.
Conférence donnée à Bdx.io 2017
Généralités sur les périphériques du STM32Hajer Dahech
Lien Téléchargement pptx https://hajereducation.tn/peripheriques-stm32-simple-resume-presentation-powerpoint/
Généralités sur les périphériques du STM32
Merci , Thanks For watching Video
=====Subscribe == S'abonner
Playlist :STM32 :vidéos+Files+Code
Autoradio DVD GPS pour Opel Antara/Astra/Combo/Corsa/Meriva/Tigra/Vectra/Vivaro/Zafira 2003-2009 compatible GPS/VCD/20CD/MP3/MPEG4/DIVX/CD-R/USB/SD/WMA/JPEG/Ipod/WIFI/3G/IPOD/IPHONE 4/ Android 4.2.2 avec Ecran tactile et les fonctions TV et radio AM/FM/RDS intégrées.
Présentation effectuée à la DevCon 12 (16 décembre 2021) par Christophe Villeneuve sur "Pentest Bus Pirate".
Une occasion de voir comment effectuer des pentests sur de l'IoT
Le film Sergio et Serguei du réalisateur Ernesto Daranas, raconte une histoire d’amitié entre un radioamateur et un cosmonaute russe.
Dossier de presse et présentation du film par Bodega Films.
Plus d'infos sur le film Sergio et Sergei : https://www.passion-radio.org/blog/sergio-sergei-film-2019/79005
Le MiniTiouner, développé par F6DZP et F1TE, est un double récepteur tuner TV satellite numérique (DATV), il couvre de 144 à 2450 MHz, se branche sur port USB et fonctionne sous Windows. Article du magazine Radio-REF n°915 de Décembre 2017.
Leaflet Es'hail 2 /Qatar OSCAR-100 (QO-100) for satellite ham radioPassion Radio Amateur
AMSAT P4-A will be the first geostationary amateur radio transponder and digital amateur television (DATV) transponder on the Es'hail-2 satellite, which is scheduled to launch in late 2018. It will be located at 26 degrees east longitude and have a lifetime of at least 15 years. The transponder offers both narrowband (250 kHz) and wideband (8 MHz) modes for voice and data communications using uplink and downlink frequencies between 2.4-2.41 GHz and 10.49-10.5 GHz. Minimum setups for slow-scan television, voice, and DATV involve small receiving antennas, receivers, and transmitters capable of at least 10-
Es'hail2 1er satellite radioamateur géostationnaire QATAR OSCAR-100Passion Radio Amateur
Présentation complète (en anglais) du premier satellite radioamateur géostationnaire QATAR OSCAR-100 / Es'hail2.
Ce satellite a été développé par QARS (Qatar Amateur Radio Society) et es’hailSat (The Qatar satellite Company), sous la direction technique d’AMSAT-DL.
A l’occasion du lancement du satellite radioamateur Es’hail-2, voici une présentation d'Es’hail-2 par F5AHO lors de la conférence "Satellites et Hyper" organisée par le radioclub F8KCF le 11 novembre 2017 à Annemasse (74) : https://goo.gl/jeNFCs
Albrecht AE 2990 AFS is a handheld multi mode AM/FM/SSB, for 10m, 11m and 12 meters (24 Mhz to 29Mhz).
Here is the mods to choose the right coverage and extend it.
Full manual for Albrecht AE2990 in english.
Documentation complète pour le portable Albrecht AE2990, 10m, 11m et 12m (24Mhz, 27Mhz et 28Mhz) tous modes AM/FM/SSB.
The document introduces the Elecraft KX3, an ultraportable transceiver that combines features of the K3 and KX1 transceivers. The KX3 operates on all amateur radio bands from 160 to 6 meters, and supports SSB, CW, AM, FM, and data modes with a maximum power output of 10 watts or 100 watts when used with an external amplifier. Despite its small size of 3.5" x 7.5" x 1.7", the KX3 includes a built-in speaker and optional internal automatic tuner and battery pack. It also features SDR capabilities with receive I/Q outputs and 32-bit floating point DSP for noise reduction and
Dans nos applications de radio amateurs, il est parfois difficile, voire impossible, de prévoir le fonctionnement d’un aérien dans un environnement particulier. Pour éviter de passer du temps à sa mise au point ou d’avoir à utiliser des appareils de mesure chers etsophistiqués il peut être utile de tenter d’observer les propriétés d’une antenne à l’aide d’un logiciel de simulation.
Vu sur : http://www.passion-radio.org/blog/conception-antennes-radioamateur-assistee-par-ordinateur/173
1. Comment décoder les signaux
digitaux et numériques en SDR
1 – Mode Digital ou Numérique ?
2 – Introduction au SDR et RTL-SDR
3 – Décoder les modes digitaux : PSK31, RTTY, FT8, JT65
4 – Décoder les modes numériques : DMR et D-STAR
5 – Les autres applications SDR
Présentation par F1JXQ de Passion-Radio.fr
HamExpo 2017 – 14 octobre 2017 – Le Mans
Vidéo Youtube : https://youtu.be/pZxwbv76-kY
2. Digital ou numérique ?
Lien en savoir +
1
Les 2 !
Le Digital définit
L'usage, l'utilisateur,
ou l'expérience (UX)
Le Numérique définit
Le matériel et la
technologie
4. Introduction au SDR
Software Defined Radio
C'est utiliser un logiciel pour gérer la partie réception
et émission de signaux radio (au lieu d'un matériel)
Le SDR permet de réduire de manière drastique
l'investissement coté matériel radio
Il permet de bénéficier de la puissance d'un PC pour
traiter (presque) n'importe quel signal radio...
5. La révolution RTL-SDR
Découvert en Mars 2010 par Eric Fry, rejoint par Osmocom et
Antti Palosaari qui le popularisent en 2011/2012.
Une simple clé USB pour recevoir la TNT à
20 euros
Devient un véritable scanner radio large
bande (HF), VHF et UHF
La clé TNT doit avoir le chipset RTL2832U
Et le tuner R820T, R820T2 (24 – 1766 Mhz
sans trou)
6. Configurer une clé TNT en SDR
1 – N'installez pas les drivers de la TNT
2 – Branchez la clé USB TNT sur un port USB 2.0 et toujours sur le
même
3 – Télécharger et lancer Zadig : http://zadig.akeo.ie
4 – Dans le menu « Options » cocher « List all devices »
5 - Choisissez la clé TNT « Bulk-In, Interface 0 » ou RTL2832U
puis cliquez « Replace Driver »
6 - Télécharger et installer le logiciel de réception SDR, pour
Windows : HDSDR, SDR-Console, SDRsharp.
Pour MAC : CubicSDR, GQRX
7. Ajouter les bandes HF
(10-12Mhz à 50Mhz) en RTL-SDR
Solution #1 (gratuite) par logiciel :
Télécharger le driver RTL-SDR, extension de
13Mhz à 1820Mhz : https://db.tt/0JuVpWBL
Dézipper le contenu de l'archive à la racine du
répertoire d'installation de SDRcharp et remplacer
les 3 fichiers DLL :
8. Ajouter les bandes MF et HF
(0.5 à 50Mhz) en RTL-SDR
Solution #2 par matériel (payant) avec la
converter Ham it Up à brancher sur la clé TNT
avec un câble MCX <->SMA
9. Ecouter les bandes HF et décoder les
digimodes sans matériel radio
Avec un simple navigateur et un WebSDR comme : http://websdr.ewi.utwente.nl:8901/
10. Décoder les modes digitaux
FT8, PSK31, RTTY, ...
Le principe : Installer un câble audio virtuel sur l'ordinateur pour simuler
un câble Jack relié entre le logiciel SDR et le logiciel de décodage.
https://www.vb-audio.com/Cable/index.htm#DownloadCable
11. Les réglages audio pour décoder avec le
logiciel SDRUno
Dans le logiciel de décodage (ici WSJT-X 1.8) régler l'entrée
audio (input) sur le câble audio Virtuel (VB-AUDIO)
Pour écouter l'audio du câble :
12. Exemple de réception en 1 seule nuit
en mode FT8 représentée sur PSKreporter
http://www.passion-radio.org/blog/psk-reporter-outil-de-suivi-propagation-dx-en-temps-reel/43390
13. Décoder les modes numériques
DMR et D-STAR avec DSD+
Une clé USB RTL-SDR suffit
pour décoder les modes
numériques :
D-STAR, DMR, MotoTRBO,
P25, Nexedge, Provoice.
En DMR, DSD+ permet de
voir les trames (Talkgroup,
TimeSlot, ID) ainsi que de
décoder la voix (non cryptée)
https://www.dsdplus.com/
14. Les réglages audio de DSD+
http://www.ref66.fr/2015/08/18/decodage-dmr-avec-une-cle-tnt/
15. Suivi des positions des avions et décodage ADSB
Décodage des messages courts ACARS
Suivi des bateaux et décodage AIS
Réception de capteurs connectés
Regarder la TV analogique
Réception des signaux GPS et décodage
Réception images satellites météorologiques NOAA
L'écoute de satellites et de la station ISS
Radioastronomie, écoute des bruits de Jupiter (20-40Mhz)
Écoute de la radio FM, RDS, radio numérique DAB
Reverse engineering de protocoles radio inconnus
Triangulation de signal, recherche de ballons sondes
Recherche de sources de bruit RF, analyseur de spectres, d’antennes
Et plus encore ! Présentation de Carl de RTL-SDR.com à télécharger :
https://open-dmr.fr/telecharger/presentation-applications-low-cost-sdr/
Autres exemples d’applications SDR
16. Panadapter SDRPlay
Le principe consiste à récupérer la FI (fréquence intermédiaire) d’un
poste pour afficher le spectre sur le logiciel SDR, ici SDRUno :
https://www.youtube.com/watch?v=LFg5aKSodwc
http://rxcontrol.blogspot.fr/2016/07/sdrplay-premiers-essais-en-panadapter.html
23. Décodage des signaux ADS-B
Guide et tutoriel pour décoder les signaux ADS-B :
https://www.passion-radio.org/blog/decoder-signaux-gps-adsb-acars/76513
26. Synthèse
Le SDR représente un nouveau domaine d’exploration
et d’expérimentation pour les radioamateurs
Il permet d’allier le domaine de la radio avec celui de
l’informatique et de l’internet, et de développer de
nouveaux usages
Le SDR peut devenir un outil pour recruter de
nouveaux radioamateurs chez les hackers, ingénieurs,
étudiants, jeunes geeks et moins jeunes !
73 David @F1JXQ (twitter)
Vidéo sur Youtube : https://youtu.be/pZxwbv76-kY