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The processing of signals for the purpose of extracting a parameter or property embedded in a signal. Signal goes in and far fewer numbers come out.
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How to calculate the bandwidth of a continuous signal?
I suppose the correct expressions you meant are:
a) $5\sin(2t)$
b) $\sin(2t) + \sin(3t)$
Bandwidth is defined as the difference between the highest and lowest frequencies of a given signal ou syste …