DETECTION AND IMAGING OF MOVING-OBJECTS WITH SYNTHETIC APERTURE RADAR .2. JOINT TIME FREQUENCY-ANALYSIS BY WIGNER-VILLE DISTRIBUTION

被引:153
作者
BARBAROSSA, S [1 ]
FARINA, A [1 ]
机构
[1] ALENIA SPA,RADAR FACTORY,I-00131 ROME,ITALY
关键词
WIGNER-VILLE DISTRIBUTION; SYNTHETIC APERTURE RADAR; MOVING OBJECTS; DETECTION;
D O I
10.1049/ip-f-2.1992.0011
中图分类号
TN [电子技术、通信技术];
学科分类号
0809 ;
摘要
The aim of the work is to show how time-frequency representation by Wigner-Ville distribution of the echoes received by a synthetic aperture radar provides a useful tool for detection of moving objects and the estimation of the instantaneous phase shift induced by relative radar-object motion. The phase history is then used to compensate the received signal and to form a synthetic aperture with respect to the moving object, necessary to produce a high resolution image.
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页码:89 / 97
页数:9
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