信號的二維到達角和極化估計
2D ANGLE AND POLARIZATION ESTIMATION
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摘要: 本文論述了一種基于子空間方法的多信號二維到達角和極化參量的估計算法。該方法采用了交叉偶極子陣元組成的L型陣列,利用子陣輸出信號數(shù)據(jù)矩陣中包含的信號空間的旋轉(zhuǎn)不變性質(zhì),借助于矩陣束方法求解出信號的二維到達角和極化參量的估汁值,并自動進行參數(shù)的配對。仿真結(jié)果證實了該算法的有效性。
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關(guān)鍵詞:
- 二維到達角估計; 極化估計; 極化敏感陣列; 矩陣束
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. -
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]周云鐘,陳天麒.多信號極化與到達角估計.電子科技大學(xué)學(xué)報,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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