DocumentCode :
126269
Title :
Spectral domain analysis of downward-looking linear array SAR three-dimensional imaging
Author :
Zhang Siqian ; Kuang Gangyao ; Zhu Yutao
Author_Institution :
Coll. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China
fYear :
2014
fDate :
16-23 Aug. 2014
Firstpage :
1
Lastpage :
4
Abstract :
This paper presents downward-looking three-dimensional SAR with linear array that distributed along cross-track direction. In contrast to conventional side-looking SAR, downward-looking three-dimensional SAR could create a real three-dimensional resolution image to avoid shading and layover effects. Imaging performances such as cross-track resolution and Doppler ambiguity are analyzed in this paper based on three-dimensional spectral domain. The maximum array elements spacing which should be satisfied to avoid cross-track Doppler ambiguity is proposed. The demonstration of spectral domain analysis and imaging performances are validated in the last part of this paper.
Keywords :
Doppler radar; linear antenna arrays; radar antennas; radar imaging; spectral analysis; synthetic aperture radar; 3D resolution image creation; Doppler ambiguity analysis; cross-track direction; cross-track resolution analysis; downward-looking linear array SAR 3D imaging; maximum array elements spacing; spectral domain analysis; Antennas; Arrays; Doppler effect; Imaging; Radar imaging; Spectral analysis; Synthetic aperture radar;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI
Conference_Location :
Beijing
Type :
conf
DOI :
10.1109/URSIGASS.2014.6929635
Filename :
6929635
Link To Document :
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