Analysis of sonar targets by teager-huang transform (THT)
In this paper, an approach for Sonar targets analysis based on a new energy-time-frequency representation, called Teager-Huang Transform (THT), is presented. The THT is the combination of the empirical mode decomposition of Huang and the Teager-Kaiser signal demodulation method. The THT is free of interferences and does not requires basis functions for signals decomposition. The analysis is carried out, in free field, from the impulse responses of Sonar targets. We compare the analysis results of impulse responses of spherical and cylindrical targets given by THT to those of the smoothed Wigner-Ville transformation.
empirical mode decomposition time frequency analysis teager-kaiser energy operator teager huang transform (tht) sonar echos.