December 2005
Intermediate to advanced
475 pages
12h 6m
English
Content preview from Signals and Systems
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11.4 MAGNITUDE/PHASE TRANSFER FUNCTIONS USING FOURIER TRANSFORM
The output of a linear time invariant system is given by
If the system is excited by sinusoid phasor x(n) = ejωn for −∞ < n < ∞. The output becomes
H(ω) is called Fourier transform of h(k) where h(k) is the unit sample response. It is also called transfer function of the system which is a complex valued function of ω in the range −π ≤ ω ≤ π. We can also express the transfer ...
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