Topology Optimization of Bistatic Radar for Target Location Based on Conditional Entropy Lower Bound

As a new kind of detection technology, bistatic radar has attracted more and more attention. The target location accuracy depends on the topology configuration of bistatic radar. To improve the target location accuracy, it is necessary to optimize the configuration of the bistatic radar system. In this paper, a method for optimal configuration of bistatic radar system based on the conditional entropy lower bound (LB) of bistatic radar is proposed. Firstly, the conditional entropy and its LB of the target position estimate in given bistatic radar system’s polar observations are deduced theoretically. Then, the optimal topology configuration of bistatic radar is obtained by minimizing the conditional entropy LB. Finally, the effectiveness of this method is verified by simulation results.