This is all about various Communication systems and it's applications. That how it is use full for us in many aspects.

1. Electronic and Communication Department
Subject :- Digital Communication
Mentor :- Vrushank shah
Presented By:-
Unnati Badheka (IU1241090001)
Ami Goswami (IU1241090014)

2. content
 What is communication ?
 What is communication system ?
 Various types of communication system.
 Application of communication system.
 References

4. Communication system
A system or facility for transfering data
between persons and the equipment.

5. Types of communication
system
 Analog communication system
 digital communication system
 line communication system
 duplex/Half duplex communication
system
 Base band communication system
 Carrier communication system
 eye-gaze communication system

6. Analog communication system
 Analog communication is that types of
communication in which the message or
information signal i.e transmitted is analog in
nature.

7. Application of AC
 Telecommunications
 television
 radio
 Wireless
4G

8. Continue…
 Satellite communication
 laser
 digital cinema
 Radio
 Internet access
 military

9. Space based communication

10. Radar

11. Digital Communication system
 In digital communication, the message
signal to be transmitted is digital in
nature.

12. Applications
• Digital Audio
Transmission
• Telephone channels
• Lowpass
filter,sample,quantize
• Digital Audio
Recording
Improve fidelity
• More durable and
don’t deteriorate with
time

13. Power Line communication
system
 Power Line Communication (PLC) is a
communication technology that enables
sending data over existing power cables.

14.  For the purpose of understanding, PLC can
be broadly viewed as:
1. Narrowband PLC
2. Broadband PLC
 Narrowband PLC works at lower frequencies,
lower data rates, and has longer range, which
can be extended using repeaters.
 Broadband PLC works at higher frequencies,
high data rates and is used in shorter-range
applications.

15. Duplex communication
 In Duplex communications system two
equipments can communicate with each
other in both the directions
simultaneously and hence the name
Duplex
 In the Duplex communication system,
two devices can communicate with each
other at the same time.

16. Half duplex communication
 In half Duplex communication system,
both the two parties can’t communicate
simultaneously. The sender has to stop
sending the signals to the recipient and
then only the recipient can respond.

17. Tactical Communication
System
 Another mode of communication is the
tactical mode of communication. In this
mode of communication, communication
varies according to the changes in the
environmental conditions and other
situations.

18. Applications of TC
Tactical Radios & Networking
 By providing the industry’s broadest range of
tactical radio platforms – encompassing all
major frequencies and design form-factors –
Harris is ready to provide the right solution
based on your mission requirements. Our
latest tactical communications products
incorporate advanced multi-functional
capabilities and high-speed, high-bandwidth
performance that enable emerging
applications including mobile ad-hoc
networking, and battle management system
(BMS) interoperability.

19. Vehicular Intercom System
 The RF-7800I Vehicular Intercom System is
a modular, highly configurable systems for
in-vehicle voice and data communication,
tactical network connectivity, and battle
management system interoperability.

20. C4ISR
4C: Command ,Control,
Communications and Computers
I: Intelligency
S: Surveillance
R: Reconnaissance

21. Eye-gaze communication
 The eye-gaze system is a
communication system for people with
complex physical disabilities.
 This operates with eyes by looking at
control keys displayed on a screen.

22. Skills needed by the users
 Good control of ONE eye.
 Adequate vision.
 Ability to maintain a position in front of
 eye gaze moniter.

24. references
 Hansell, Clarence W., U.S. Patent 2,389,432,
"Communication system by pulses through the Earth".
 Leon W. Couch II (1993). Digital and Analog Communication
Systems. Prentice Hall.
 http://www.militaryaerospace.com/c4isr.html

25. Thank u …!!U