Title :
Application of the Reassigned Joint Time-Frequency Transform to Wideband Scattering From Waveguide Cavities
Author :
Ram, Shobha Sundar ; Ling, Hao
Author_Institution :
Texas Univ., Austin
fDate :
6/29/1905 12:00:00 AM
Abstract :
The wideband return from a circular waveguide cavity is investigated in the joint time-frequency space using the reassigned joint time-frequency (RJTF) transform. Equations for generating the reassigned joint time-frequency distribution from a frequency domain signal are presented. The performance of the reassigned transform is compared with that of the short-time Fourier transform (STFT) based on data obtained from both simulation and measurement.
Keywords :
cavity resonators; circular waveguides; time-frequency analysis; circular waveguide cavity; frequency domain signal; reassigned joint time-frequency transform; short-time Fourier transform; wideband scattering; Acoustic scattering; Equations; Fourier transforms; Frequency domain analysis; Helium; Radar scattering; Signal generators; Spectrogram; Time frequency analysis; Wideband; Radar scattering; Reassigned joint time-frequency transform; radar scattering; reassigned joint time-frequency (RJTF) transform; short-time Fourier transform; short-time Fourier transform (STFT); waveguide cavities;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2007.911391
