摘要
波达方向(Direction of Arrival,DOA)估计的信号处理在移动通信、雷达和声呐等领域中具有广泛的应用,其中高分辨子空间算法是最具代表性的,它是在信号源数量已知的情况下进行研究的。以传感器阵列在空间任意分布为例,再分析传感器阵列接收数据的协方差矩阵,根据矩阵特征值分析结果,提出一种高效的二维波达方向检测算法。仿真结果表明,该算法在较小的快拍数和较低的信噪比下具有很高的检测精度。
The signal processing estimated by direction of arrival is widely used in the fields of mobile communication,radar and sonar,among which the high resolution subspace algorithm is the most representative,and it is studied when the signal source quantity is known.Taking any distribution of sensor array in space as an example,the covariance matrix of sensor array receiving data is analyzed.Based on the analysis results of matrix eigenvalues,an efficient two-dimensional wave direction detection algorithm is proposed.The simulation results show that the algorithm has high detection accuracy under small fast beat and low signal-to-noise ratio.
作者
赵宝利
何华
ZHAO Bao-li;HE Hua(Shaanxi Post Vocational and Technical College,Xianyang 712000,China;Xi’an University of Posts&Telecommunications,Xi’an 710100,China)
出处
《电子设计工程》
2020年第18期140-143,共4页
Electronic Design Engineering
基金
陕西省教育厅科研项目(17JK1039)。
关键词
DOA
信号源数
信噪比
协方差矩阵
DOA
number of signal sources
signal to noise ratio
covariance matrix
作者简介
赵宝利(1981-),女,陕西西安人,硕士研究生,讲师。研究方向:通信技术。
