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Autocorrelation function of white noise is ________(a) an impulse function(b) a step function(c) a constant(d) a variableThe question was posed to me in my homework.This question is from Quadrature Carrier Multiplexing topic in chapter Double Sideband Suppressed Carrier Modulation of Analog Communications

Answer»

The correct choice is (c) a constant

The explanation: WHITE noise is an internal noise of COMMUNICATION system having different frequencies present with EQUAL intensities. It has a peak only at zero and are zero at all points. THUS, the AUTOCORRELATION function of white noise is a constant.



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