Moving target parameter estimation of SAR after two looks cancellation

Rongbing Gan; Jianguo Wang; Xiang Gao

doi:10.1117/12.657699

4 January 2006 Moving target parameter estimation of SAR after two looks cancellation

Rongbing Gan, Jianguo Wang, Xiang Gao

Proceedings Volume 5985, International Conference on Space Information Technology; 59852N (2006) https://doi.org/10.1117/12.657699
Event: International Conference on Space information Technology, 2005, Wuhan, China

Abstract

Moving target detection of synthetic aperture radar (SAR) by two looks cancellation is studied. First, two looks are got by the first and second half of the synthetic aperture. After two looks cancellation, the moving targets are reserved and stationary targets are removed. After that, a Constant False Alarm Rate (CFAR) detector detects moving targets. The ground range velocity and cross-range velocity of moving target can be got by the position shift between the two looks. We developed a method to estimate the cross-range shift due to slant range moving. we estimate cross-range shift by Doppler frequency center. Wigner-Ville Distribution (WVD) is used to estimate the Doppler frequency center (DFC). Because the range position and cross range before correction is known, estimation of DFC is much easier and efficient. Finally experiments results show that our algorithms have good performance. With the algorithms we can estimate the moving target parameter accurately.

Citation Download Citation

Rongbing Gan, Jianguo Wang, and Xiang Gao "Moving target parameter estimation of SAR after two looks cancellation", Proc. SPIE 5985, International Conference on Space Information Technology, 59852N (4 January 2006); https://doi.org/10.1117/12.657699

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available