Digital Signal Processing Handbook P6

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Digital Signal Processing Handbook P6

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Signals are usually classiﬁed into four categories. A continuous time signal x(t) has the ﬁeld of real numbers R as its domain in that t can assume any real value. If the range of x(t) (values that x(t) can assume) is also R, then x(t) is said to be a continuous time, continuous amplitude signal. If the

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