Effect of Correlation of Two Signal Sources on Resolution Performance of MUSIC Algorithm

FAN Xiang; CHENG Zheng-dong; MA Dong-hui; ZHU Bin

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Effect of Correlation of Two Signal Sources on Resolution Performance of MUSIC Algorithm

更新时间：2025-07-16

- Effect of Correlation of Two Signal Sources on Resolution Performance of MUSIC Algorithm
- Acta Electronica Sinica Vol. 36, Issue 12, Pages: 2315-2318(2008)
- 作者机构：
  
  1. 中国科学技术大学六系,安徽,合肥,230027
  2. 合肥电子工程学院,安徽,合肥,230037
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN911.7
- Published Online：25 December 2008，
  
  Published：2008
- 稿件说明：
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FAN Xiang, CHENG Zheng-dong, MA Dong-hui, et al. Effect of Correlation of Two Signal Sources on Resolution Performance of MUSIC Algorithm[J]. Acta Electronica Sinica, 2008, 36(12): 2315-2318.
DOI：

FAN Xiang, CHENG Zheng-dong, MA Dong-hui, et al. Effect of Correlation of Two Signal Sources on Resolution Performance of MUSIC Algorithm[J]. Acta Electronica Sinica, 2008, 36(12): 2315-2318. DOI：

摘要

平均信噪比分辨门限是特征结构算法分辨性能的一种度量

本文给出了含有两信号源相关性的MUSIC算法的平均信噪比分辨门限表达式.模拟结果表明

当两信号源正相关时

MUSIC算法分辨性能会下降;当负相关时

在一定条件下

MUSIC算法分辨性能会提高.本文也讨论了当两信号源的功率差异、方向夹角、阵元数和采样的快拍数变化时

相关性对算法分辨性能的影响的变化规律.

Abstract

The mean SNR resolution threshold is a kind of measurement of resolution performance of the eigenstructure algorithms.The formula of the mean SNR resolution threshold of MUSIC algorithm which includes the correlation of two signal sources is deduced.Simulation results show that the positive correlation may reduce the resolution performance of MUSIC algorithm

and that under some condition the negative correlation may improve the resolution performance.The rule of the effect change of correlation on the resolution performance is discussed when some parameters such as the power difference

direction cut angle

the number of array elements and the number of sampling snapshots are changed.

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