An optimal beam position combination method in ScanSAR

The different beam position combination will generally bring on the different system capability in ScanSAR. The familiar selection method for beam position combination usually depends on the manual manipulation, which will enhance the cost of work, and the results may not be optimal. In this paper, an optimization beam position combination method based on the beam position tree is proposed. This method is implemented by an automatic program manipulation, and the beam position combination can be optimal. First, a beam position tree is built, and then all the paths of the tree will be traversing, what is more, the performance of every beam position combination will be analyzed and compared, and thus, the optimization beam position combination will be easily obtained. The proposed method is verified by the computer simulation in the end.