https://ch.mathworks.com/help/dsp/ref/dsp.iirhalfbandinterpolator-system-object.html
dsp.IIRHalfbandInterpolator - Interpolate by a factor of two using polyphase IIR - MATLAB
The dsp.IIRHalfbandInterpolator System object performs efficient polyphase interpolation of the input signal by a factor of two.
by a
https://jp.mathworks.com/help/dsp/ref/dsp.iirhalfbandinterpolator-system-object.html
dsp.IIRHalfbandInterpolator - Interpolate by a factor of two using polyphase IIR - MATLAB
The dsp.IIRHalfbandInterpolator System object performs efficient polyphase interpolation of the input signal by a factor of two.
by a