AE22 SATELLITE AND SPACE COMMUNICATIONS

 

1.             Introduction, Brief History, Overview                                                          1 hour

 

I [1]

 

2.         Satellite Orbits                                                                                               6 hours

 

2.1               Orbital mechanics.

2.2               Look Angle determination.

2.3               Launch Vehicles: Placing satellite in geostationary orbit, geostationary transfer orbit.

2.4               Orbital effects in communications.

  

I [2 (2.1, 2.2, 2.5, 2.6)]

 

3.         Propagation Effects                                                                                        5 hours

 

3.1               Atmospheric losses.

3.2               Ionospheric effects.

3.3               Rain attenuation.

 

II [4 (4.2-4.4)]

 

4.         Satellite Link                                                                                                  11 hours

 

4.1               Basic transmission theory : EIRP, free-space transmission.

4.2               System Noise : Noise figure, noise temperature, G/T ratio of earth station.

4.3               Downlink design, uplink design, combined uplink- down link C/N.

 

I [4 (4.2-4.4, 4.6-4.8)]; II [12 (12.1-12.8, 12.10)]

 

5.         Modulation and Multiplexing                                                                         8 hours

 

5.1               FM links, SCPC, FDM/FM.

5.2               Digital modulation : Baseband signals, digital carrier systems- OOK, FSK, BPSK, QPSK modulations and detection.

5.3               Carrier and bit timing recovery.

5.4               Time division multiplexing.

 

I [5 (5.1, 5.2, 5.6)]; II [9 (9.6), 10 (10.2-10.6)]

 

6.         Space Segment                                                                                               6 hours

 

6.1               Power supply, attitude control, satellite stabilization.

6.2               Station keeping.

6.3               Transponders: Wideband receiver, demultiplexer, power amplifier, antenna subsystem.

 

II [7 (7.1-7.4, 7.7, 7.8)]

 

7.         Multiple Access                                                                                             10 hours

 

7.1               Basic concepts.

7.2               FDMA.

7.3               TDMA.

7.4               DAMA, SPADE.

7.5               CDMA.

 

I [6 (6.1-6.5, 6.8)]; II [14 (14.5, 14.7, 14.9)]

 

8.         Error Control                                                                                                  7 hours

 

8.1               Error detection and correction.

8.2               Channel capacity.

8.3               Error control coding: Linear and cyclic block codes, Convolution codes.

 

                        I [7 (7.1-7.5)]; II [11.1-11.4)]

 

9.         VSAT Systems                                                                                                6 hours

 

9.1               Overview.

9.2               Network architectures.

9.3               Access control and multiple access.

 

I [9 (9.2-9.5)]

 

 

Text Books

 

I.          T. Pratt, C. Bostian, J. Allnutt, “Satellite Communications”, 2nd Edition, Wiley (International Student Edition), 2003 

II.        D.Roddy, “Satellite Communications”, 3rd Edition, McGraw-Hill 

            (International Student Edition), 2001