Title :
Radial velocity ambiguity mitigation of moving target by dual-subband ATI approach with a two-channel SAR
Author :
Kang Xueyan ; Yang Jiefang ; Zhai Wenshuai ; Zhang Yunhua
Author_Institution :
Key Lab. of Microwave Remote Sensing, Center for Space Sci. & Appl. Res., Beijing, China
Abstract :
The estimated radial velocity of moving target can be ambiguous in traditional two-channel synthetic aperture radar (SAR) system using along-track-interferometry (ATI) method. To mitigate radial velocity ambiguity of the moving target, we first establish the model of a two-channel SAR system and analyzed the basic principle of the dual-subband ATI (DS_ATI) approach. Then, we apply the model and the approach to process real data, the results demonstrated the effectiveness of the DS_ATI approach.
Keywords :
radar interferometry; synthetic aperture radar; DS_ATI approach; dual-subband along-track-interferometry method; moving target estimation; radial velocity ambiguity mitigation; radial velocity estimation; two-channel SAR system; two-channel synthetic aperture radar system; Azimuth; Clutter; Equations; Frequency-domain analysis; Image resolution; Synthetic aperture radar; Along track interferometry (ATI); Dual-Subband ATI (DS_ATI); Interferometric phase; Radial velocity ambiguity; Synthetic aperture radar / Ground moving target detection (SAR/GMTI);
Conference_Titel :
Radar Conference (Radar), 2014 International
DOI :
10.1109/RADAR.2014.7060468
