PPt on AAI

2,[object Object],COMMUNICATION, NAVIGATION & SURVILLANCEEQUIPMENT,[object Object],IN AIRPORTS AUTHORITY OF INDIA,[object Object],PRESENTATION BY: ,[object Object],SNEHA RAI,[object Object],B.TECH (E&C) ,[object Object],3rd year,[object Object]

SCOPE,[object Object],[object Object]

Security Equipments.3,[object Object]

AIM,[object Object],To get acquainted with COMMUNICATION NAVIGATIONAL & SURVILLANCE AIDS IN AIRPORTS AUTHORITY ON INDIA.,[object Object]

INTRODUCTION ,[object Object],[object Object]

The National Airport Authority, a government of India undertaking, for planning, development and management of Air Traffic Control and Communication, Navigation and Surveillance Services over Indian air space, has to look beyond technical innovation to meet these challenges.

CATC has been created, since1948, to meet that objective.,[object Object]

INTRODUCTION ,[object Object],[object Object],[object Object]

CNS FACILITIES,[object Object],Communication Facilities.,[object Object],Navigation Facilities.,[object Object], Surveillance Facilities.,[object Object]

COMMUNICATION,[object Object],Communication refers to sending, receiving and processing of information by electronic means.,[object Object]

COMMUNICATION FACILITIES,[object Object], Communication Facilities:,[object Object],[object Object]

Dedicated Satellite Communication Network.

Automatic Message Switching System.,[object Object]

VHF TRANSMITTERS,[object Object], A transmitter uses an oscillator to produce the desired radio frequency current. Crystal-Controlled oscillators are normally employed to provide better frequency stability. Thinner the crystal, higher will be the operating frequency.,[object Object]

VHF TRANSMITTER,[object Object],The DT100 equipment can operate in the 108 to 156 MHz frequency band.,[object Object]

OPERATING STATES ,[object Object],ON Line state :If the AF line port, located onto the ALB-x rear panel, is used to manage the AF + signaling connection,[object Object],OFF line state :if the microphone connector, located onto the control panel front side, is used to manage the AF+ signaling connection,[object Object]

VHF RECEVIER,[object Object], The VHF RX has the function of selecting the desired signal at vhf frequencies from all the other unwanted signals, amplifying and demodulating it, and reproducing it in the actual shape / desired manner.,[object Object]

VHF RECEIVER,[object Object],The DR100 equipment can operate in the 108 to 156 MHz frequency band.,[object Object]

OPERATING STATES ,[object Object],ON Line state if the AF line port, located onto the ALB-S rear panel, is used to manage the AF + signaling connection.,[object Object],OFF Line state if the Microphone connector, located onto the Control Panel front side, is used to manage the AF+ signaling connection,[object Object]

DIGITAL VOICE TAPE RECORDER,[object Object]

DSCN,[object Object],D- DEDICATED,[object Object],S- SATELLITE,[object Object],C- COMMUNICATION,[object Object],N- NETWORK,[object Object]

PURPOSE OF DSCN,[object Object],TO PROVIDE SECURITY.,[object Object],TO REDUCE MANPOWER.,[object Object],IT IS ECONOMICAL.,[object Object]

VOICE COMMUNICATION SYSTEM,[object Object],Voice communication system is a switching system which connects the various Air traffic controller positions to various Air-to-ground and Ground-to-ground communication systems. ,[object Object],Voice switching and routing between the (A/G and G/G) communication systems and air traffic controller working positions is done using advanced microprocessor and DSPs ,[object Object]

BLOCK DIAGRAM OF VCS SYSTEM,[object Object]

AMSS,[object Object],AMSS stands for Automatic Message Switching System. ,[object Object],The AMSS works on the principle of “Store and Forward”.,[object Object],The AFTN (Aeronautical Fixed Telecommunication Network ) is a works wide system of aeronautical fixed circuits provided for the exchange of massages and or digital data between aeronautical fixed stations. ,[object Object]

BLOCK DIAGRAM OF ECIL AMSS,[object Object]

NAVIGATIONAL AIDS,[object Object],[object Object]

To accomplish this ART, some sort of 'aids' are required by the PILOTS.

In the twentieth century, electronics also entered in the Aviation field. Direction finders and other navigational aids enabled the navigators to obtain 'Fixes' using electronic aids only. Hence such aids became more and more popular and came into extensive use.,[object Object]

Distance Measuring Equipment (DME).

Instrument Landing System (ILS).,[object Object]

It operates in the VHF band of 112-118 MHz, used as a medium to short range Radio Navigational aid. It works on the principle of phase comparison of two 30 Hz signals

There are two types of VOR, namely, conventional VOR (C-VOR) and Doppler VOR (D-VOR).,[object Object]

VOR enables the Air Traffic Controllers in the Area Control Radar (ARSR) and ASR for identifying the aircraft in their scopes easily. They can monitor whether aircraft are following the radials correctly or not.

VOR located outside the airfield on the extended Centre line of the runway would be useful for the aircraft for making a straight VOR approach. ,[object Object]

VORs located at radial distance of about 40 miles in different directions around an International Airport can be used as holding VORs for regulating the aircraft for their landing in quickest time. ,[object Object]

The facility even though possible to locate independently, normally it is collocated with either VOR or ILS.

The DME can be used with terminal VOR and holding VOR also.

DME can be used with the ILS in an Airport; normally it is collocated with the Glide path component of ILS.,[object Object]

MODES OF OPERATION,[object Object],SEARCH MODE:,[object Object],[object Object]

When the aircraft's transmitter is in Search mode, it transmits interrogations at a higher rate (about 150 interrogations per second). When the aircraft receives at least 65% replies to its interrogations Lock-on will be established.,[object Object]

In the Track mode the aircraft's interrogation rate reduces considerably (about 30 interrogations per second). The reduced interrogation rate of transmission in the track mode will allow more aircraft to use the DME station.,[object Object]

Permit the use of multiple routes on common system of airways to resolve traffic.

PPt on AAI

PPt on AAI

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