Generate a white Gaussian noise vector

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Ali
Ali 2012-5-29
hi
i wish anyone can help me .. i have this quastion to solve:
Generate a white Gaussian noise vector ,,
Note that the Signal-to-Noise Ratio in dB is SNR = 10*log10(Ps/Pn)), with Ps the power of the signal and Pn the power of the noise.
any help is appreciated ..

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回答（1 个）

venkat vasu
venkat vasu 2012-7-30
y = wgn(m,n,p); generates an m-by-n matrix of white Gaussian noise. p specifies the power of y in decibels relative to a watt. The default load impedance is 1 ohm. Example:
y2 = wgn(100,1,0,'complex');

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