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DADiSP Worksheet Functions > Function Categories > Fourier Transforms and Signal Processing > OASFILT
Filters data using the overlap and save method.
OASFILT(series, f, blocksize)
|
series |
- |
An input series to filter |
|
f |
- |
A series. The filter impulse response. |
|
blocksize |
- |
Optional. An integer, the size of processing block. Defaults to the best power of two for the filter length. |
A series.
W1: gnorm(1000, .01)
W2: gsin(100, .01, 3)
W3: oasfilt(W1, W2)
Block filters the noise in W1 with the sin filter in W2. The blocksize defaults to 128.
OASFILT uses the overlap and save method of block filtering by computing the FFT of blocks of the input data.