Assignment

D.C Aggarwal

Q1. Describe General structure of a satellite communication system.

Q2. Why uplink and downlink frequency is different? Which one is more and why?

Q3. Describe advantage of satellite communication system and its applications.

Q4. What are active and passive satellites? And describe earth stations with the help of block diagram.

Q5. What is codec and describe link design equation.

Q6. Describe:

1. Noise Temp2. C/N ratio3. C/T ratio

Q7. Complete link design equation

(S/N)out = (C/N)in + FM improvement

Q8. Explain TDMA frame structure from D.C Aggrwal. CDMA, FDMA and DAMA, compare all.

Q9. Explain synchronous orbits. What are orbital parameters and solve their numerical from D.C aggarwal(last page).

Q10. Explain look angles and slant range.

Q11. What are satellite subsystems? Explain placement of satellite in geostationary orbit.

Assignment

Pratt

Q1. Explain Basic Transmission theory.

Q2. Explain launches of launch vehicles. Explain block diagram of transponders. Q3. What are Link budgets? Explain waveform equation of FM and Carson rule, Pre-emphasis and De-emphasis.

Q4. Explain waveform equation for FM video transmission.

Q5. Explain theory of Linear Block codes, cyclic codes and Convolution codes.

Q6. Explain attenuation, Depolarisation, Type of rain, Cloud Attenuation and ionosphere scintillation.

Q7. Explain:

GEO MEO LEO

Q8. Explain: VSAT GPS DBSTV

*****Thanks*****

RegardsDhaarna Arora