Consider the system shown in Figure 7.19 as a means of approximately measuring R x (Ï) where
Question:
(a) Show that E[y] = Rx(Ï).
(b) Find an expression for Ï2y if x(t) is Gaussian and has zero mean. If x1, x2, x3, and x4 are Gaussian with zero mean, it can be shown that
E[x1x2x3x4] = E[x1x2]E[x3x4] + E[x1x3]E(x2x4] +E[x1 x4]E[x2x3]
Figure 7.19
Transcribed Image Text:
x(t) to +T ()dt to Delay z (variable)
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a The output is Therefore b ...View the full answer
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Related Book For
Principles of Communications Systems, Modulation and Noise
ISBN: 978-8126556793
7th edition
Authors: Rodger E. Ziemer, William H. Tranter
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