Computes the discrete Fourier transform matrix.
b = dftmx(a)Legacy name: dftmtx
Order of the matrix. a is a positive integer.
Discrete Fourier transform matrix. b is a complex matrix of values around the unit-circle whose inner product with a column vector of length a yields the discrete Fourier transform of the vector.
a = (1:5)'; f1 = fft(a); f2 = dftmx(length(a))*a
Where This Node Can Run:
Desktop OS: Windows
FPGA: This product does not support FPGA devices