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互素阵列能有效扩展阵列虚拟孔径,但预处理后的阵列模型为一确定噪声下的单快拍相干源目标方位估计问题.针对该问题,提出了一种基于Hankel矩阵分解的方法,采用多项式求根的方法来进行高分辨定向.首先将阵列采样协方差数据进行Khatri-Rao(KR)积预处理,进行相关数学变换后,用去冗余后的数据构建Hankel矩阵,然后采用奇异值分解,转换为多项式求根,最后找出感兴趣的目标位置,并通过最小二乘法来求解出目标幅度.仿真结果表明了该方法的有效性和优越性.
The co-prime array can effectively expand the array virtual aperture, but the preprocessed array model is a single fast coherent source orientation estimation problem to determine the noise.To solve this problem, a method based on Hankel matrix decomposition is proposed, using polynomial Rooted method for high-resolution orientation.At first, the array sampling covariance data was preconditioned by Khatri-Rao (KR) product, then the related math transform was used to construct the Hankel matrix with the data after dereducing, then the singular value decomposition , Converted to polynomial roots, and finally find out the target location of interest, and through the least squares method to solve the target amplitude.The simulation results show the effectiveness and superiority of the method.