More General FIR Filter Design
We have looked at more than just FIR filter design by the window method and frequency-sampling technique. The general steps were
- Prepare a desired frequency-response that ``seems achievable''
- Inverse FFT
- Window the result (time-limit it)
- FFT that to see how it looks
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Comparison to Optimal Chebyshev FIR Filter
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Filtering and Windowing the Ideal Hilbert-Transform Impulse Response