本文選題：二維波達方向估計 + 三平行線陣�。� 參考：《信號處理》2016年12期

【摘要】：提出了一種三平行線陣中基于改進傳播算子的二維波達方向估計方法。該方法針對三平行陣列的結(jié)構(gòu)特點,利用三平行線陣中兩個相互垂直的雙平行線陣,分別構(gòu)造一個擴展傳播矩陣,求得旋轉(zhuǎn)矩陣。然后根據(jù)三平行線陣的特性,對分別得到的旋轉(zhuǎn)矩陣進行配對。最后利用配對后的旋轉(zhuǎn)矩陣,聯(lián)合估計信號的方位角和俯仰角。該方法當俯仰角在70°~90°之間時不會出現(xiàn)角度估計失效問題,充分利用了所有陣元信息,提高了角度估計性能,而且具有更低的計算復雜度。仿真驗證了提出方法的有效性。
[Abstract]:A two-dimensional DOA estimation method based on improved propagation operator in three parallel linear arrays is proposed. According to the structural characteristics of the three parallel arrays, an extended propagation matrix is constructed and the rotation matrix is obtained by using two vertical double parallel arrays in the three parallel arrays. Then the rotation matrix is paired according to the characteristics of the three parallel arrays. Finally, by using the paired rotation matrix, the azimuth and pitch angles of the signal are jointly estimated. When the pitch angle is between 70 擄and 90 擄, the problem of angle estimation failure will not occur, which makes full use of all element information, improves the performance of angle estimation, and has lower computational complexity. Simulation results show the effectiveness of the proposed method.
【作者單位】： 天津大學電子信息工程學院;
【基金】：天津市科技興海項目(KJXH2011-2)
【分類號】：TN911.7
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本文編號：2040073