Ground Moving Target Detection With an SAR System Based on Keystone Transform
Mao Shi · Systems engineering and electronics · 2002
It is difficult to detect and image a ground moving target by synthetic aperture radar (SAR) since the echo of the moving target is the LFM with unknown modulation rate. The moving targets in SAR image are smeared or displaced, even disappear. First we study the principle of Keystone transform and give out a process to realize it in normal SAR image algorithm. Then we analyze the different Keystone transform effects on different kinds of moving targets. The simulation results have confirmed our conclusions and our viewpoints.\;