Calculates the Inverse Fast Fourier Transform of a series with the result in polar (magnitude/phase) form.
A series or array.
A complex series or table in Polar form.
W1: gsin(128,0.01,1, 4)
displays the inverse Fourier Transform in magnitude and phase form.
W1: gsin(100,0.001,50, 0)
returns a rectified waveform because the magnitude in W2 is always positive.
returns a sine wave that looks like W1 because DADiSP first converts W2 to Cartesian coordinates then takes the IFFT.
Uses the same algorithm as the IFFT but is slower because it calculates magnitude/phase.
Oppenheim and Schafer.
Digital Signal Processing
Prentice Hall, 1975
Digital Signal Processing Committee
Programs for Digital Signal Processing
I.E.E.E. Press, 1979