信号的二维到达角和极化估计
2D ANGLE AND POLARIZATION ESTIMATION
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摘要: 本文论述了一种基于子空间方法的多信号二维到达角和极化参量的估计算法。该方法采用了交叉偶极子阵元组成的L型阵列,利用子阵输出信号数据矩阵中包含的信号空间的旋转不变性质,借助于矩阵束方法求解出信号的二维到达角和极化参量的估汁值,并自动进行参数的配对。仿真结果证实了该算法的有效性。Abstract: An algorithm for simultaneous estimation of two dimentional angle and polarization of multiple signals is proposed in this paper. Using an L-shaped array consisting of crossed dipoles, the algorithm exploits rotational invariance properties involved in array structure, so that both angle and polarization estimates may be computed via matrix pencil method, and these estimates are automatically paired. Simulation results are presented to verify the efficacy of the proposed algorithm.
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Li J, Compton R T. Two-dimensional angle and polarization estimation using ESPRIT algorithm,[2]IEEE Trans. on AP, 1993, 39(9): 1376-1383.[3]周云钟,陈天麒.多信号极化与到达角估计.电子科技大学学报,1996, 25(6): 574-578.[4]Compton R T. Adaptive Antennas. New Jersey: Prentice Hall, 1988, Chap. 3.[5]Van der Veen A J, Deprettere E F. Parallel VLSI matrix pencil algorithm for high resolution direction finding. IEEE Trans. on ASSP, 1991, 39(2): 383-394.[6]Li J, Compton R T. Angle and polarization estimation using ESPRIT with a polarization sensitive array. IEEE Trans.on AP, 1991, 39(9): 1376-1383.[7]Roy R, Kailath T. ESPRIT-estimation of signal paramaters via rotational invariance techniques.[8]IEEE Trans on ASSP, 1989, 37(7): 984-995. -
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