Paper Info
Title
On the Baseband Doppler Centroid Estimation for Multichannel HRWS SAR Imaging
Abstract
In multichannel high-resolution and wide-swath (HRWS) synthetic aperture radar (SAR) systems, Doppler centroid (DC) is essential for SAR focusing. However, conventional phase-dependent DC estimators for single-channel SAR systems face many problems in multichannel HRWS SAR systems because of the azimuth undersampling of each channel and channel mismatches in phase. To estimate the baseband DC, the spatial cross-correlation coefficients (SCCCs) of multichannel HRWS SAR signals are exploited, and a novel baseband DC estimator named SCCC method is proposed in this letter. Validation of the proposed method is demonstrated with the real airborne multichannel SAR data.
Year
DOI
Venue
2014
10.1109/LGRS.2014.2318511
IEEE Geosci. Remote Sensing Lett.
Keywords
Field
DocType
doppler centroid (dc) estimation,synthetic aperture radar,channel phase mismatching,single-channel sar system,synthetic aperture radar (sar),doppler radar,image resolution,doppler effect,spatial cross-correlation coefficient,multichannel hrws sar imaging,high-resolution and wide-swath,estimation theory,image sampling,airborne multichannel sar data,azimuth undersampling,radar resolution,channel calibration,baseband doppler centroid estimation,radar imaging,phase-dependent dc estimator,correlation methods,spatial cross-correlation coefficients (scccs),high-resolution and wide-swath (hrws),sccc,baseband,azimuth,estimation,radio frequency
Continuous-wave radar,Computer vision,Baseband,Radar imaging,Synthetic aperture radar,Side looking airborne radar,Remote sensing,Undersampling,Azimuth,Inverse synthetic aperture radar,Artificial intelligence,Mathematics
Journal
Volume
Issue
ISSN
11
12
1545-598X
Citations 
PageRank 
References 
2
0.37
7
Authors
4
Name
Order
Citations
PageRank
Yan-Yang Liu1635.36
Zhenfang Li210311.78
Zhibin Wang320.71
Zheng Bao41985155.03