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FIR Digital Filter Design
As usual with the DTFT, the sampling rate is assumed to be . In practice, the DTFT is used in sampled form, , replacing the DTFT with a (zero-padded) FFT, as will be discussed in Chapter 8. To make the most of FFT processors for FIR filter implementation, we will need flexible ways to design many kinds of FIR filters. This chapter provides a starting point in the area of FIR digital filter design.
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