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

fYear

2014

Firstpage

1

Lastpage

6

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);

fLanguage

English

Publisher

ieee

Conference_Titel

Radar Conference (Radar), 2014 International

Type

conf

DOI

10.1109/RADAR.2014.7060468

Filename

7060468