Paper Info
Title
A Novel Azimuth Doppler Signal Reconstruction Approach for the GEO-LEO Bi-Static Multi-Channel HRWS SAR System.
Abstract
For the geosynchronous-low earth orbit (GEO-LEO) bi-static multi-channel high-resolution and wide-swath synthetic aperture radar (HRWS SAR) system, a novel azimuth Doppler signal reconstruction algorithm is developed based on an equivalent baseline approximating in the azimuth Doppler chirp Fourier transform domain The main difficulty for the GEO-LEO bistatic multi-channel HRWS SAR system is that the baseline is variant with the scene in the conventional Doppler Fourier transform domain during azimuth signal reconstruction. The developed approach first employs the linear range cell migration correction and chirp Fourier transform to obtain the coarse-focused ambiguity SAR image. More importantly, the baseline component can be approximated a uniform baseline length for the whole image scene and the ambiguous Doppler spectrum can be reconstructed using the available Doppler signal reconstruction approach. Finally, the experimental results for a simulation GEO-LEO bi-static multi-channel HRWS SAR system are employed to validate the theoretical investigations and the proposed approach.
Year
DOI
Venue
2019
10.1109/ACCESS.2019.2904653
IEEE ACCESS
Keywords
Field
DocType
Synthetic aperture radar (SAR),bistatic,the geosynchronous-low earth orbit (GEO-LEO),multi-channel in azimuth high-resolution and wide-swath (MC-HRWS),Doppler signal reconstruction
Computer vision,Computer science,Synthetic aperture radar,Azimuth,Fourier transform,Bistatic radar,Chirp,Artificial intelligence,Earth's orbit,Doppler effect,Signal reconstruction,Distributed computing
Journal
Volume
ISSN
Citations 
7
2169-3536
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Shuang-Xi Zhang1736.92
Shaojie Li200.34
Yan-Yang Liu3635.36
Mengdao Xing41340162.45
Junli Chen5106.73