一种新的二维谐波估计方法

A New Method for 2-Demension Harmonic Estimation

研究了二维谐波信号相关矩阵后 ,提出了一种称之为“矩阵束的二维谐波估计 (MP2D)”算法 ,该算法既不需要求解二维特征多项式的根 ,也不需要在二维频率空间搜索谱峰 ,算法具有高效性。仿真实验表明 ,该算法在白噪声条件下对二维谐波频率估计具有高的精度和强的抗干扰能力。

After studying the correlation matrix of 2D harmonic signal, we present a new algorithm called “matrix pencil algorithm for 2D harmonic retrieval problem” (MP2D). This algorithm is highly efficient in computation because it does not have to solve the roots of 2D polynomial or search for the peak of 2D frequency space. The simulation experiments show that this algorithm has high precision for 2D frequencies estimation and low sensitivity to noise.