Let x[n] and X(e j ) represent a sequence and its Fourier transform, respectively. Determine in terms
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Let x[n] and X(ejω) represent a sequence and its Fourier transform, respectively. Determine in terms of X(ejω), the transforms of ys[n], yd[n], and ye[n] In each case, sketch y(ejω) for X(ejω) as shown in Figure.
(a) Sampler:
Note that
(b) Compressor:
yd[n] = x[2n].
(c) Expander:
Transcribed Image Text:
| X(ei) -27 2.
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Related Book For
Discrete Time Signal Processing
ISBN: 978-0137549207
2nd Edition
Authors: Alan V. Oppenheim, Rolan W. Schafer
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