Signal with constant frequency modulation
[Y,IFLAW] = fmconst(N, FNORM, T0)
a positive integer: the number of points.
a real scalar in [-0.5 0.5]: the normalized frequency (default: 0.25)
an integer in [1 N]: the time center (default: round(N/2)).
a complex column vector of size N: the signal.
a real column vector of size N: the instantaneous frequency law (optional).
fmconst generates a frequency modulation with a constant frequency fnorm. The phase of this modulation is such that y(t0)=1.
[X,IFLAW] = fmconst(128,0.05,50); clf subplot(211); plot(real(X)); xtitle(_("Signal real part")) subplot(212); plot(IFLAW); xtitle(_("Instantaneous frequency law")) | ![]() | ![]() |