Test signal example C of Griffiths' paper
[SIG,IFLAWS] = griffitc(N) [SIG,IFLAWS] = griffitc(N, SNR)
a positive integer: number of points in time of the signal (default: 200)
a positive scalar: the signal to noise ratio (default: 25 dB).
a complex column vector of size N: the signal.
a N by 3 real array : the instantaneous frequencies of the 3 components .
griffitc generates the test signal of the example C of the paper of Griffiths.
[sig,iflaws] = griffitc(); plot(iflaws); xgrid; xlabel(_("Time")); ylabel(_("Normalized frequency")) xtitle(_("Instantaneous frequency laws")) | ![]() | ![]() |
L.J. Griffiths, "Rapid measurement of digital instantaneous frequency", IEEE Trans on ASSP, Vol 23, No 2, pp 207-222, 1975.