Title :
Time-frequency distribution analysis of scattering from waveguide cavities
Author :
Moghaddar, Ali ; Walton, Eric K.
Author_Institution :
ElectroSci. Lab., Ohio State Univ., Columbus, OH, USA
fDate :
5/1/1993 12:00:00 AM
Abstract :
The time-frequency distributions (TFD) analysis of the electromagnetic scattering from a circular waveguide cavity is investigated. Two time-frequency representations, the Wigner distribution and the running-window Fourier transform, are applied to the frequency-domain scattering data and the results are compared. For the cavity, propagating modes and cutoff frequencies can be determined from the TFD, whereas neither time nor frequency representations will provide such information directly
Keywords :
Fourier transforms; cavity resonators; circular waveguides; electromagnetic wave scattering; time-frequency analysis; Wigner distribution; circular waveguide cavity; cutoff frequencies; electromagnetic scattering; frequency-domain scattering data; propagating modes; running-window Fourier transform; time-frequency distributions; Cutoff frequency; Dispersion; Electromagnetic analysis; Electromagnetic scattering; Electromagnetic waveguides; Fourier transforms; Frequency domain analysis; Radar scattering; Time domain analysis; Time frequency analysis;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
