User`s guide

Magnitude FFT
5-278
Dialog Box
Output
Determines whether the block computes the magnitude FFT (
Magnitude)
or magnitude-squared FFT (
Magnitude squared) of the input. Tunable.
Inherit FFT length from input dimensions
When selected, uses the input frame size as the number of data points, N
fft
,
on which to perform the FFT.
FFT size
The number of data points on which to perform the FFT, N
fft
. If N
fft
exceeds
the input frame size, the frame is zero-padded as needed. This parameter
is enabled when
Inherit FFT length from input dimensions is not
selected.
References Oppenheim, A. V. and R. W. Schafer. Discrete-Time Signal Processing.
Englewood Cliffs, NJ: Prentice Hall, 1989.
Proakis, J. and D. Manolakis. Digital Signal Processing. 3rd ed. Englewood
Cliffs, NJ: Prentice-Hall, 1996.
Supported
Data Types
Double-precision floating point