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

Volume

6

fYear

2007

fDate

6/29/1905 12:00:00 AM

Firstpage

580

Lastpage

583

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;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2007.911391

Filename

4378194