Title
An accurate SISAR imaging method of ground moving target in forward scatter radar
Abstract
In order to accurately extract the profile image of the ground moving targets(GMT) in the forward scatter radar(FSR),a forward scatter signal model of GMT is built based on the Fresnel-Kirchhoff diffraction formula,the multipath propagation model and the high order phase approximation method.The classical shadow inverse synthetic aperture radar(SISAR) imaging algorithm is modified using the proposed signal model.In the modified imaging algorithm,the impacts of ground reflection,non-linear variation of target Doppler frequency and the target motion direction on imaging accuracy are discussed.Meanwhile,non-linear and time-dependent parameters are used to compensate for the motion phase of the GMT forward scatter signal,and a novel estimation method of the height difference and median line height of the target profile is put forward under the multipath interference.Finally,both the accuracy of the proposed signal model and the effectiveness of the modified imaging algorithm are validated by the simulation results.
Year
DOI
Venue
2012
10.1007/s11432-012-4584-9
SCIENCE CHINA Information Sciences
Keywords
Field
DocType
imaging algorithm,shadow inverse synthetic aperture radar,multipath interference,ground moving target,signal model
Multipath propagation,Control theory,Multipath interference,Kirchhoff's diffraction formula,Artificial intelligence,Radar,Computer vision,Radar imaging,Side looking airborne radar,Inverse synthetic aperture radar,Forward scatter,Acoustics,Mathematics
Journal
Volume
Issue
ISSN
55
10
1869-1919
Citations 
PageRank 
References 
1
0.39
4
Authors
4
Name
Order
Citations
PageRank
Cheng Hu123542.57
Xiaoliang Li2287.12
Teng Long338761.41
chao zhou410.39