User`s guide

FFT
5-174
dimension to a power-of-two length. Also, to get valid outputs, your inputs
must be in linear order.
Valid Block Inputs
•Real- or complex-valued
•Must be in linear order
•M must be a power of two
Dimension Along
Which Block
Computes DFT
Corresponding Block Output Characteristics
Output port rate = input port rate
Frame-based M-by-N
matrix
Column •Sample-based
•Complex-valued
•Same dimensions as input
•Each column (each row for sample-based
row inputs) contains the M-point DFT of the
corresponding input channel in linear or
bit-reversed order.
Sample-based M-by-N
matrix,
Column
Sample-based 1-by-M row
vector
Row
Unoriented length-M 1-D
vector
Vector Unoriented, length-M, complex-valued 1-D
vector containing M-point DFT of input in
linear or bit-reversed order
M 1≠