J4 ›› 2012, Vol. 39 ›› Issue (3): 14-19+26.doi: 10.3969/j.issn.1001-2400.2012.03.003

• Original Articles • Previous Articles     Next Articles

Study of three-channel spaceborne SAR-DPCA moving target detection with the slant-placed baseline

XIA Meng1;YANG Xiaoniu2   

  1. (1. School of Telecommunication Engineering, Xidian Univ., Xi'an  710071, China;
    2. National Key Lab. of Info. Control Tech. for Comm. System, Jiaxing  314003, China)
  • Received:2011-03-08 Online:2012-06-20 Published:2012-07-03
  • Contact: XIA Meng E-mail:xia228@163.com

Abstract:

In order to obtain a number of pieces of horizontal and vertical phase center information, a novel three-channel spaceborne SAR-GMTI is proposed, based on the slant-placed baseline and displaced phase center antenna. The compensation function for the equivalent phase center with the slant-placed baseline is analyzed. The new constraint of the system and the analysis of the blind velocity relative to the slant-placed antenna are also given. Displaced phase center antenna technology is presented for moving target detection and interferometry technology is applied for position after channel compensation. Finally, simulation results confirm the effectiveness of this method with the slant-placed baseline.

Key words: synthetic aperture radar, moving target detection, displaced phase center antenna, clutter suppression, interferometric phase

CLC Number: 

  • TN957.2