部分极化波参数估计方法的改进
A Modified Method for Estimation of the Parameters of Partially Polarized Electromagnetic Waves
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摘要: 该文提出了基于矢量传感器的部分极化波信号参数估计方法的一种改进方法。该方法充分利用一次特征分解的特征值和特征矢量估计部分极化波的到达角和极化度，信号参数自动配对，降低了运算量，提高了参数估计的精度，且能够得到信号的空间导向矢量，可以利用阵列孔径信息进一步提高参数估计的精度。数值模拟结果证明该方法是有效的。
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关键词:
- 到达方向;极化度;部分极化波;矢量传感器
Abstract: In this paper, a modified method is proposed to estimate the Direction Of Arrival (DOA) and Degree Of Polarization (DOP) of Partially Polarized (PP) electromagnetic waves. This method makes full use of the eigenvalues and eigenvectors of matrix, which results in automatic combination of parameters, reduction of computation and improvement of precision. Finally, the simulation results are provided to demonstrate the effectiveness of the new algorithm. -
Li J. Direction and polarization estimation using arrays with smallloops and short dipoles[J].IEEE Trans. Antennas and Propagation.1993, 41(3):379-387[2]Kwok-Chiang. Efficient method for estimation directions-ofarrival of partially polarize signals with electromagnetic vectorsensors[J].IEEE Trans. on Signal Processing.1997, 45(10):2485-2497[3]Wong K T. Ceolocation for partially polarized electromagneticsources using multiple sparsely and uniformly spaced spatiallystrenched vector sensors. http:www.sap7.uwater.ca -
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