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Real Cepstrum

Compute real cepstrum of input

  • Real Cepstrum block

Libraries:
DSP System Toolbox / Transforms

Description

The Real Cepstrum block computes the real cepstrum of the input.

Ports

Input

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Specify the input u as a vector or a matrix of size M-by-N. 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.

Data Types: single | double

Output

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Real cepstrum output, returned as an Mo-by-N matrix.

When you clear the Inherit FFT length from input port dimensions parameter, Mo is the value you specify in the FFT length parameter. When you select the Inherit FFT length from input port dimensions parameter, Mo = M, where M is the frame size (number of rows) of the input signal.

Each output column contains the length-Mo real cepstrum of the corresponding input column.

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

Data Types: single | double

Parameters

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When you select this check box, the output frame size Mo matches the input frame size M.

The number of frequency points at which to compute the FFT, which is also the output frame size Mo.

Dependency

To enable this parameter, clear the Inherit FFT length from input port dimensions parameter.

Block Characteristics

Data Types

double | single

Direct Feedthrough

no

Multidimensional Signals

no

Variable-Size Signals

no

Zero-Crossing Detection

no

More About

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Extended Capabilities

Version History

Introduced before R2006a

See Also

Functions

Blocks