基于L型阵列的MUSIC二维估计算法研究

Research on Two-dimensional Arrival Angle Estimation Using MUSIC Algorithm Based on L Array

阵列信号处理利用天线阵列接收空间信号,阵列输出的信号比单个天线输出的信号包含更多的信息,有利于时差、相差和到达角等信息的提取,因此在通信、雷达和电子对抗等领域得到广泛应用。空间谱估计是阵列信号处理的一个重要的研究方向,克服了传统的基于常规波束形成方法的"瑞利限"问题,具有多信号同时测向能力、测向精度高、超分辨能力等等,因此多信号多参量估计已成为许多研究课题的重要研究内容。

Array signal processing makes good use of spatial signals with array antenna,which receives more information of signals than just one antenna,and is good for extracting the information such as time difference,phase difference and direction of arrival,so it has been widely used in communication,radar and electronic warfare,etc.Spatial spectrum estimation is an important area in array signal processing,it overcomes the problem of ＂Rayleigh limit＂ in the conventional beam-forming method and has the excellent merits,such as ability to estimate multiple sources at the same time,high resolution ability and so on.So estimating multi-parameters of multi-signals is very important.