Problem 1:
a. Let an be a real random sequence. The value of an is 1 or -1 of equal probability. What are E(an) and E(anam)? Briefly prove your results.
b. Let an be a real random sequence. The value of h is 1 or -1 of equal probability. What are the mean and variance of n∑n-1a. ? Briefly prove your results.
n -1
Problem 2: Walsh Code
Find 16 Walsh codes for modulating (encoding) a 4-bit data packet
Problem 3.
Design a m-seguence PN generator using 3 shift registers. Show design procedure. circuit and PN sequence.