极化信号的优化接收理论:部分极化情形
THE THEORY ON OPTIMAL RECEPTION OF POLARIZED SIGNALS:THE PARTIALLY POLARIZED CASE
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摘要: 本文针对部分极化波情形,利用电磁波的Stokes矢量表示法研究了极化信号的优化接收问题;利用Lagrange乘子法,分别推导了以信号干扰功率差(PDSI)和信号干扰噪声比(SINR)作为优化目标函数时接收天线的全局最优极化;并通过数值实例验证了文中结论。Abstract: In this paper, the problem of optimal reception of partially polarized signals is investigated by means of Stokes vector description of EM waves. The receiving antenna s global optimal polarizations are derived using Lagrange multiplier method with SINR(Signal-to-Interference-and-Noise-Ratio) and PDSI(Power-Difference-between-Signal-and-Interference) as the objective functions respectively. At the end of this paper, results are verified by a numerical example.
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Stapor D P. Optimal receive antenna polarization in the presence of interference and noise. IEEE Trans. on AP, 1995, AP-43(5): 473-477.[2]王雪松,肖顺平,曾勇虎,等.极化轨道约束下的最优极化(一).微波学报,1997, 13(1): 33-42.[3]王雪松,庄钊文,肖顺平,等.极化轨道约束下的最优极化(二).微波学报,1997, 13(3): 219-227.[4]王雪松,庄钊文,肖顺平,等.极化轨道约束下的最优极化(三).微波学报,1997, 13(4): 314-325.[5]Van Zyl J J, et al. On the optimum polarizations of incoherently reflected waves. IEEE Trans. on AP, 1987, AP-35(7): 818-825.[6]Guissard A. Mueller and Kennaugh matrices in radar polarimetry. IEEE Trans. on GRS, 1994, GRS-32(3): 590-597.[7]Van Zyl J J. On the Importance of Polarization in Radar Scattering Problems[Ph. D Dissertation].Caltech Antenna Lab. Rep, 120, 152, California Institute of Technology, Pasadena: 1985. -
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