DocumentCode :
70067
Title :
Influence of migratory scattering phenomenon on micro-motion characteristics contained in radar signals
Author :
Guo, Kun-Yi ; Sheng, Xin-Qing ; Shen, Rong-Hui ; Jing, Cong-Jun
Author_Institution :
Center for Electromagnetic Simulation, School of Information and Electronics, Beijing Institute of Technology, Beijing 100 081, People´s Republic of China
Volume :
7
Issue :
5
fYear :
2013
fDate :
Jun-13
Firstpage :
579
Lastpage :
589
Abstract :
The micro-motion characteristics of radar target are useful features for target recognition. Extended targets (as opposed to point target) have various scattering centres, such as the familiar point, localised and distributed scattering centres, as well as the rarely discussed but often encountered migratory scattering centres. The migratory scattering phenomenon of smooth surface is particularly concerned in this study. The motion information recoded in radar signals are actually that of migratory scattering centres rather than the real motions of the rigid target. Therefore the misleading motion information will bring unpredictable error to the radar application of target discrimination or recognition. To tackle this problem, the influence of migratory scattering phenomena of extended targets on micro-motion characteristics contained in radar signal is analysed in detail. Some meaningful conclusions are reached. The backscattered signals of extended targets are computed by the well-validated fullwave numerical method, hybrid finite element-boundary integral-multilevel fast multipole algorithm. The numerical results agree well with the analytical conclusions given in this study.
fLanguage :
English
Journal_Title :
Radar, Sonar & Navigation, IET
Publisher :
iet
ISSN :
1751-8784
Type :
jour
DOI :
10.1049/iet-rsn.2012.0058
Filename :
6574791
Link To Document :
بازگشت