Description

The Complex Cepstrum block computes the complex cepstrum of each column in the real-valued M-by-N input matrix, u. The block treats each column of the input as an independent channel containing M consecutive samples. The block always processes unoriented vector inputs as a single channel, and returns the result as a length-M column vector. The block does not accept complex-valued inputs.

The input is altered by the application of a linear phase term so that there is no phase discontinuity at ±π radians. That is, each input channel is independently zero padded and circularly shifted to have zero phase at π radians.

The output is a real M_o-by-N matrix, where M_o is specified by the FFT length parameter. Each output column contains the length-M_o complex cepstrum of the corresponding input column.

y = cceps(u,Mo)					% Equivalent MATLAB code

When you select the Inherit FFT length from input port dimensions check box, the output frame size matches the input frame size (M_o = M).

The output port rate is the same as the input port rate.

Parameters

Supported Data Types

See Also