Digital Communications Practice Test 4

1. The distance between two code-words is equal to the _____ of the third code-word which is the sum of the first two code-words.

2. Orthogonal vectors are

3. The term heterodyning refers to

4. Matched filter is used for

5. In analog receivers, noise bandwidth is _________ signal bandwidth.

6. What are the functions of satellite repeaters?

7. The detection method where carrier’s phase is given importance is called as

8. Path loss Ls is dependent on

9. Mechanism contributing to a reduction in efficiency is called as

10. Biorthogonal codes needs ________ bandwidth as orthogonal codes.