部分極化波參數(shù)估計方法的改進
A Modified Method for Estimation of the Parameters of Partially Polarized Electromagnetic Waves
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摘要: 該文提出了基于矢量傳感器的部分極化波信號參數(shù)估計方法的一種改進方法。該方法充分利用一次特征分解的特征值和特征矢量估計部分極化波的到達角和極化度，信號參數(shù)自動配對，降低了運算量，提高了參數(shù)估計的精度，且能夠得到信號的空間導向矢量，可以利用陣列孔徑信息進一步提高參數(shù)估計的精度。數(shù)值模擬結(jié)果證明該方法是有效的。
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關鍵詞:
- 到達方向;極化度;部分極化波;矢量傳感器
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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