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FIR Filters

FIXME: Consider adding a section here on the one-zero filter, as in the filter tutorial. Or scan it, finally.

FIXME: Leverage Matlab here – this is analysisFigure B.1 depicts the general, causal,

finite-impulse-response filter(FIR). Theimpulse responseis obtained at the output when the input signal is theimpulse signal. More formally, the impulse signal is defined by

If the th tap is denoted , then it is obvious from Fig. B.1that the impulse response

signalis given by

In other words, the impulse response simply consists of the tap coefficients, prepended and appended by zeros.

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