|
|
|
| An Algorithm of Spaceborne SAR/GMTI Based on DPCA |
| Sun Na①②; Zhou Yin-qing①; Li Jing-wen① |
| ①School of Electronics and Information Engineering, BUAA, Beijing 100083, China;②School of Information and Electrical Eng., Chinese Agriculture University, Beijing 100083, China |
|
|
|
|
Abstract Such factors as complicated spaceborne SAR orbital motion, earth rotation, earth surface curvature etc. make the realization of spaceborne SAR/GMTI different from airborne SAR/GMTI. In this paper, the property of three-antenna spaceborne SAR is analyzed firstly, and then the method of airborne SAR/GMTI processing is given and analyzed. On the basis of airborne SAR/GMTI, an algorithm of spaceborne SAR moving target detection, radial velocity estimation and relocation based on DPCA technique is presented. Finally, spaceborne SAR/GMTI computer simulation results validate its effectiveness.
|
|
Received: 22 April 2004
|
|
|
|
|
|
|
|
|
2005, Vol. 27 
