基于Toeplitz矩阵重构的无人机相干信号DOA估计算法

UAV Coherent Signal DOA Estimation Algorithm Based on Toeplitz Matrix Reconstruction

针对实时监管无人机的需求设计了基于Toeplitz矩阵重构的二维相干DOA估计算法,建立了虚拟线阵模型来接收无人机相干信号,通过对协方差矩阵进行矩阵重构来实现信号解相干,构建了Toeplitz矩阵,通过计算空间谱实现对无人机信号的二维DOA估计,仿真分析表明本文方法的DOA估计准确率较高,性能较好。

In this paper,the two-dimensional coherent DOA estimation algorithm based on the TOEPLITZ matrix reconstruction is designed for real-time regulatory drones,and the virtual line array model is established to receive the drone coherent signal,and the signal is realized by matrixing the covariance matrix.The Toeplitz matrix is built,and the two-dimensional DOA estimation for drone signals is achieved by calculating spatial spectrum.Simulation analysis shows that the DOA estimation accuracy rate of this paper is high and better performance.