高分辨直接定位算法研究

Research on High Resolution Direct Position Algorithms

在常规波束形成直接定位算法推导分析的基础上,针对目标数量未知和目标数量已知的情况分别提出了最小方差直接定位方法和多信号分类直接定位方法。仿真结果表明,在单目标情况下,直接定位方法性能优于传统两步法,在目标数量已知和未知的多目标情况下,提出的两种高分辨直接定位算法均分别能有效地对多目标进行定位。

From the analysis and the derivation of the conventional beamforming based direct position algorithm,the minimum-variance method based direct position algorithm is proposed for the case of that the number of emitters is unknown, and the multiple signal classification method based direct position algorithm is proposed for the case of that the number of emitters is known. For the case of a single emitter,the simulation results demonstrate that the direct position methods outperform the traditional method. For the case of unknown and known number of emitters,the simulation results show that the proposed two high resolution algorithms can both locate multiple emitters effectively.