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FOURIER ANALYSIS OF DISCRETE-TIME SlGNALS AND SYSTEMS [CHAP. 6
Table 6-2. Common Fourier Transform Pairs
sin Wn
,o<w<sr
77 n
6.5 THE FREQUENCY RESPONSE OF DISCRETE-TIME LTI SYSTEMS
A. Frequency Response:
In Sec. 2.6 we showed that the output y[n] of a discrete-time LTI system equals the
convolution of the input x[n] with the impulse response h[n]; that is,
Applying the convolution property (6.581, we obtain
