Interpolate signal using cascaded integratorcomb filter
DSP System Toolbox / Filtering / Multirate Filters
The CIC Interpolation block performs a sample rate increase (interpolation) on an input signal by an integer factor. cascaded integratorcomb (CIC) filters are a class of linear phase FIR filters that consist of a comb part and an integrator part.
The CIC Interpolation block requires a FixedPoint Designer™ license.
Data Types 

Multidimensional Signals 

VariableSize Signals 

[1] Hogenauer, E.B. “An Economical Class of Digital Filters for Decimation and Interpolation” IEEE Transactions on Acoustics, Speech and Signal Processing. Vol. 29, Number 2, 1981, pp. 155–162, 1981.
[2] MeyerBaese, U. Digital Signal Processing with Field Programmable Gate Arrays. New York: Springer Verlag, 2001.
[3] Harris, Fredric J., Multirate Signal Processing for Communication Systems. Upper Saddle River, NJ: Prentice Hall PTR, 2004.
dsp.CICCompensationDecimator
 dsp.CICCompensationInterpolator
 dsp.CICDecimator
 dsp.CICInterpolator
 dsp.FIRDecimator
 dsp.FIRHalfbandDecimator
 dsp.FIRHalfbandInterpolator
 dsp.FIRInterpolator