Documentation

Multirate Signal Processing

Decimation, interpolation, downsampling, upsampling, antialiasing filter

Resample uniform or nonuniform data to a new fixed rate. Perform decimation and linear or higher-order interpolation without introducing aliasing.

Functions

decimate Decimation — decrease sampling rate
downsample Decrease sampling rate by integer factor
interp Interpolation — increase sampling rate by integer factor
pchip Piecewise Cubic Hermite Interpolating Polynomial (PCHIP)
resample Resample uniform or nonuniform data to new fixed rate
spline Cubic spline data interpolation
upfirdn Upsample, apply FIR filter, and downsample
upsample Increase sampling rate by integer factor
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