Electronics and Communication Engineering - Exam Questions Papers
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The folding (maximum) frequency is
LCM of 24 and 25 is 600 which will give maximum utilization of the buffers
∴ Sampling frequency is 600
∴ Folding frequency = 600/2 = 300.

∴ Pole zero plot diagram is ROC should contain unit circle. Hence system is noncausal.
Statistical independence:
Suppose that Aj and Bk are the possible outcomes of two successive experiments or the joint outcome of a single experiment.
And suppose that it turns out that the probability of the occurrence of outcome Bk simply does not depend at all on which outcome Aj accompanies it.
Then we say that the outcomes Aj and Bk are independent.
Auto correlation also implies comparison of two signals of same source.
Hence for random Gaussian process. Auto correlation also implies statistical independence.
For a real skew symmetric matrix the non-zero eigen values are all pure imaginary and thus occurs in complex conjugate pair.

ω = 1, Thus output is zero for all sampling frequencies.