几种DOA估计算法的性能分析

在其他条件相同的情况下比较了Bartlett，Capon和Music算法的性能。Bartlett算法使波束形成的输出功率相对于某个输入信号为最大；Capon算法使噪声以及来自非信源方向的任何干扰所贡献的功率为最小，但又能保持信源方向上信号功率不变；Mustc算法是一种超分辨的方法，属于特征结构的子空间方法，因而有较高的分辨率。仿真结果征明了在其他条件相同的情况下，Music算法的性能量化。

Performance of Several Algorithim of DOA

Under the same condition, the performance of. Bartlett,Capon and Music algorithm are compared. The Bartlett algorithm makes the output power of a input signal maximal. The Capon algorithm makes the output power of noise and interferences minimal, and keep the signal power at the same time. Music algorithm which belongs to a subspace method of eigenstructure is a superresolution method, so it has a higher resolution. The simulation results show that in the same condition, the Music algorithm is the best of the three.