本文選題：到達(dá)角 + 極化�。� 參考：《探測(cè)與控制學(xué)報(bào)》2017年05期

【摘要】：針對(duì)稀疏陣列測(cè)向中相位解模糊問(wèn)題,提出了一種稀疏電磁對(duì)十字形陣列的到達(dá)角和極化參數(shù)聯(lián)合估計(jì)算法,根據(jù)電偶極子和磁偶極子之間的旋轉(zhuǎn)不變關(guān)系進(jìn)行極化參數(shù)估計(jì),利用虛擬基線(xiàn)解模糊得到信號(hào)到達(dá)角的高精度估計(jì)。該方法利用同一次特征分解的特征值和特征矢量自動(dòng)配對(duì),不需要額外的配對(duì)運(yùn)算。仿真實(shí)驗(yàn)表明,本方法不僅克服了非均勻十字陣由于稀疏造成的相位模糊問(wèn)題,而且大大提高了到達(dá)角的估計(jì)精度。
[Abstract]:In order to solve the phase ambiguity problem in the direction finding of sparse array, a joint estimation algorithm of the angle of arrival and polarization parameters of a sparse electromagnetic cross array is proposed. The polarization parameters are estimated according to the rotation invariant relation between the electric dipole and the magnetic dipole. The high precision estimation of the arrival angle of the signal is obtained by using the virtual baseline to resolve the ambiguity. In this method, the eigenvalues and vectors of the same decomposition are used to match automatically, and no additional pairing operation is required. The simulation results show that the proposed method not only overcomes the phase ambiguity problem caused by non-uniform cross arrays but also improves the precision of angle of arrival estimation.
【作者單位】： 陜西理工大學(xué)物理與電信工程學(xué)院;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目資助(61475094,61201295) 陜西理工大學(xué)科研計(jì)劃資助項(xiàng)目(SLGKYQD2-06);陜西理工大學(xué)院士工作站課題基金資助(fckt201504)
【分類(lèi)號(hào)】：TN911.7
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本文編號(hào)：1975479