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sosfilt    See Also

Second-order (biquadratic) IIR filtering.

Syntax

Description

y = sosfilt(sos,x) applies the second-order section filter sos to vector x. The output, y, is the same length as x.

sos represents the second-order section filter H(z)

by an L-by-6 matrix containing the coefficients of each second-order section in its rows

If x is a matrix, sosfilt applies the filter to each column of x independently. Output y is a matrix of the same size, containing the filtered data corresponding to each column of x.

See Also

filter
 Filter data with a recursive (IIR) or nonrecursive (FIR) filter.
medfilt1
 One-dimensional median filtering.
sgolayfilt
 Savitzky-Golay filtering.

References

[1] Orfanidis, S.J. Introduction to Signal Processing. Englewood Cliffs, NJ: Prentice Hall, 1996.


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