User`s guide
IFFT
5-238
values before the simulation starts. In Trigonometric fcn mode, the block 
computes the sine and cosine values during the simulation. 
Optimize table for
Optimization of the table of sine and cosine values for 
Speed or Memory. 
Active only when 
Twiddle factor computation is set to Table lookup.
Input is in bit-reversed order
Set when the input is in bit-reversed order, and clear when the input is in 
linear order. The block yields invalid outputs if you do not set this 
parameter correctly.
Input is conjugate symmetric
Set when the block input is conjugate symmetric and you want real-valued 
outputs. The block output is invalid if you set this parameter when the 
input is not conjugate symmetric.
Skip normalization by transform length, N
When set, rather than computing the IDFT, the block computes a scaled 
version of the IDFT given by Equation 5-4.
Supported 
Data Types
See Also
Single-precision floating point Table lookup mode only
Double-precision floating point All modes
FFT DSP Blockset
IDCT DSP Blockset
Pad DSP Blockset
Zero Pad DSP Blockset
bitrevorder
Signal Processing Toolbox
fft
Signal Processing Toolbox
ifft
Signal Processing Toolbox










