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Digital Signal Filtering in C

By Max I. Fomitchev, October 01, 2004

When developing numerical or signal-processing software, at some point, you have to choose between using off-the-shelf libraries or writing your own routines. Here's a generic set of routines that are both flexible and fast.

October, 2004: Digital Signal Filtering in C

Figure 4: Forward wavelet transformation. Source data f(x) is decomposed in a series of wavelet coefficients wi(x) corresponding to fine detail at each level i. Low-pass filter output fh(i)(x) corresponds to source data representation at scale level i.



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