一种改进的根- music算法及MSE分析

2016 International Conference on Computer, Information and Telecommunication Systems (CITS) Pub Date : 2016-07-06 DOI:10.1109/CITS.2016.7546455

Dijie Wang, Rong Chai, F. Gao

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引用次数: 6

摘要

根- music算法是一种基于多项式根的DOA估计方法。它基于代价函数而不是峰值搜索进行估计，与MUSIC算法相比大大减少了计算量。然而，它也带来了一些其他的错误。在这封信中，我们提出了一种基于成本函数一阶导数的新方法，并分析了该方法的均值和MSE。仿真结果表明，改进后的方法比现有的Root-MUSIC方法性能更好。

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An improved root-MUSIC algorithm and MSE analysis

Root-MUSIC algorithm is a method of DOA estimation based on polynomial rooting. It estimated based on the cost function instead of peak searching, which greatly reduces the computation compared with MUSIC algorithm. However, it came with some other errors. In this letter, we propose a new method based on the the first-order derivative of the cost function and analyze the mean and the MSE of the proposed method. Simulation results show that the improved method performs better than the existing Root-MUSIC method.

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2016 International Conference on Computer, Information and Telecommunication Systems (CITS)

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