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;
"ActiveFedora::Aggregation::ListSource" .
a ,
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"Target recognition using the time-frequency representation of the impulse response";
;
"heidenwt@lafayette.edu";
"Jouny, Ismail";
"en";
"Proceedings of the SPIE";
"""The backscatter of a target illuminated by a stepped-frequency radar represents the frequency response of the target as
seen by the radar and it can be modeled as a sum of exponentials. The inverse Fourier of the backscatter represents the
target impulse response. A time-frequency analysis (using Wigner-Ville) of the target backscatter should yield features
that are directly related to target scattering centers. These features can then be used for target recognition purposes. This
concept is first tested on a synthetic radar target that consists of five scattering centers. Next, the frequency response of
real backscatter of commercial aircraft models is examined using time-frequency analysis. The instantaneous frequency
and the group delay as extracted using the pseudo Wigner-Ville distribution are used as target recognition features. The
classification results are compared with those obtained using an optimal maximum-likelihood classifier. The performance
of time-frequency extracted features as target recognition tools is investigated in all scenarios of complete or partial
azimuth knowledge, and additive noise. The time-frequency analysis of the frequency response of the synthetic target is
examined and compared with that expected using a closed-form solution.""";
"2021-07-14";
"Jouny, I. (2020 Apr 22) \"Target recognition using the time-frequency representation of the impulse response.\" Proceedings of the SPIE 11423: 114230X";
"2021-07-14T20:22:34.699338526+00:00"^^;
"doi:10.1117/12.2550649",
"hdl:10385/hd76s134w",
"noid:hd76s134w";
;
"2020-04-22";
"2021-07-14T20:22:34.76474626+00:00"^^;
"SPIE";
"Article";
"Wigner-Ville",
"Impulse/Frequency Response",
"radar target identification";
"Electrical & Computer Engineering";
"Engineering";
"Lafayette College";
;
;
;
;
;
;
"Publication" .
;
.