一种alpha噪声背景下的波达方向估计算法  

A DOA estimation algorithm under alpha noise background

作　　者：胡喆 沈凡 殷友廷 HU Zhe;SHEN Fan;YIN Youting(The Eighth Research Academy of CSSC,Nanjing 211153)

机构地区：[1]中国船舶集团有限公司第八研究院,南京211153

出　　处：《雷达与对抗》2024年第3期20-24,共5页Radar & ECM

摘　　要：针对在alpha噪声干扰背景下传统DOA估计算法大多性能不佳的问题,提出一种基于相关熵的降维MUSIC估计算法。首先基于阵列信号模型和alpha噪声特性分析alpha噪声背景下的信号接收模型,然后引入相关熵算子并与降维MUSIC算法相结合,最后使用Matlab对所提算法进行仿真,仿真结果证明了所提算法的有效性。该算法提升了alpha噪声干扰下的目标参数估计精度,在雷达目标探测领域有一定的工程应用价值。In response to the issue that conventional direction of arrival(DOA)estimation algorithms often perform poorly under the interference of alpha noise,a dimensionality reduction MUSIC estimation algorithm is proposed based on correntropy.Firstly,the signal reception model is analyzed under the background of alpha noise based on the array signal model and alpha noise characteristics.Secondly,the correntropy operator is introduced and combined with the dimensionality reduction MUSIC algorithm.Finally,Matlab is used to simulate the algorithm proposed.The simulation results demonstrate the effectiveness of the algorithm proposed.The algorithm enhances the estimation accuracy of target parameters under the interference of alpha noise and has certain engineering application value in the field of radar target detection.

关 键 词：alpha噪声 DOA 相关熵准则 阵列信号处理 

分 类 号：TN957.51[电子电信—信号与信息处理]