Title
Unambiguous Imaging of Static Scenes and Moving Targets with the First Chinese Dual-Channel Spaceborne SAR Sensor.
Abstract
Multichannel synthetic aperture radar (SAR) is a breakthrough given the inherent limitation between high-resolution and wide-swath (HRWS) faced with conventional SAR. This paper aims to obtain unambiguous imaging of static scenes and moving targets with the first Chinese dual-channel spaceborne SAR sensor. We propose an integrated imaging scheme with the dual-channel echoes. In the imaging scheme, the subspace-based error estimation algorithm is first applied to the spaceborne multichannel SAR system, followed by the reconstruction algorithm prior to imaging. The motion-adapted reconstruction algorithm for moving target imaging is initially achieved with the spaceborne multichannel SAR system. The results exhibit an effective suppression of azimuth ambiguities and false targets with the proposed process. This paper verifies the accuracy of the subspace-based channel error estimator and the feasibility of the motion-adapted reconstruction algorithm. The proposed imaging process has prospects for future HRWS SAR systems with more channels.
Year
DOI
Venue
2017
10.3390/s17081709
SENSORS
Keywords
Field
DocType
synthetic aperture radar (SAR),high-resolution and wide-swath (HRWS),channel error estimation,reconstruction algorithm,unambiguous imaging
Computer vision,Subspace topology,Synthetic aperture radar,Communication channel,Azimuth,Electronic engineering,Reconstruction algorithm,Artificial intelligence,Engineering,Estimator
Journal
Volume
Issue
ISSN
17
8.0
1424-8220
Citations 
PageRank 
References 
5
0.58
13
Authors
4
Name
Order
Citations
PageRank
Tingting Jin1102.04
Xiaolan Qiu219026.75
Donghui Hu317116.73
Chibiao Ding422333.52