DocumentCode
918396
Title
Time-frequency analysis of backscattered signals from diffuse radar targets
Author
Kenny, O.P. ; Boashash, B.
Author_Institution
Sch. of Electr. of Electron. Syst. Eng., Queensland Univ. of Technol., Brisbane, Qld., Australia
Volume
140
Issue
3
fYear
1993
fDate
6/1/1993 12:00:00 AM
Firstpage
198
Lastpage
208
Abstract
The need for analysis of time-varying signals has led to the formulation of a class of joint time-frequency distributions (TFDs). One of these TFDs, the Wigner-Ville distribution (WVD), has useful properties which can be applied to radar imaging. The authors discuss time-frequency representation of the backscattered signal from a diffuse radar target. It is then shown that for point scatterers which are statistically dependent or for which the reflectivity coefficient has a nonzero mean value, reconstruction using time of flight positron emission tomography on time-frequency images is effective for estimating the scattering function of the target
Keywords
backscatter; image reconstruction; radar theory; statistical analysis; time-frequency analysis; Wigner-Ville distribution; backscattered signal; diffuse radar target; joint time-frequency distributions; radar imaging; time of flight positron emission tomography; time-varying signals;
fLanguage
English
Journal_Title
Radar and Signal Processing, IEE Proceedings F
Publisher
iet
ISSN
0956-375X
Type
jour
Filename
221294
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