Time-frequency and time-frequency-rate representations using the cross quadratic spectrum.
Abeysekera, Saman S.
Date of Issue2013
IEEE Region 10 Conference (TENCON) - Spring Conference (2013 : Sydney, Australia)
School of Electrical and Electronic Engineering
Traditionally used time-frequency distributions such as the STFT and the WVD are not suitable for FM signal characterization at low SNRs. A new method is proposed using the cross quadratic spectrum (XQS) which provides accurate temporal characterization for both signal's instantaneous frequency and the instantaneous-frequency-rate.
DRNTU::Engineering::Electrical and electronic engineering