Processing algorithms for signals with time-varying frequencies.
Ying Tuo. Ju · 2009
coefficients carry desirable information.For complex-valued PPSs, the PTFT serves as the MLE of the phase coefficients, and can be efficiently computed using the generalized class of fast algorithms presented in Chapter 4, which supports arbitrary order of PTFT with the dimension size being aPb, where a, P and b are positive integers.In practice, many applications inherently deal with real-valued signals.The natural signals such as speech, marine mammal sounds, heart rate etc. are realvalued.In image and audio watermarking schemes [36, 37], the real-valued chirp signals are embedded as watermark signals, where each chirp rate corresponds