Joint Elevation and Azimuth Angles Estimation for L-Shaped Array
Joint Elevation and Azimuth Angles Estimation for L-Shaped Array
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DOI：
10.1109/lawp.2016.2582922
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发表时间：
2017-01-01
影响因子：
4.2
通讯作者：
Jiang, Defu
中科院分区：
文献类型：
--
作者：
Li, Jianfeng;Jiang, Defu
提出了一种利用L阵进行联合仰角和方位角估计的新方法。首先通过信号子空间建立沿不同轴线排列的两个子阵的方向矩阵之间的关系，然后由噪声子空间进行一维多项式求根来估计角度。该算法可以充分利用信号子空间和噪声子空间，以较低的复杂度实现自动配对的角度估计。此外，与传统方法相比，该方法具有更好的角度估计性能。仿真结果验证了该方法的有效性。
A novel method for joint elevation and azimuth angles estimation with L-shaped array is proposed in this letter. The relationship between the direction matrices of the two subarrays arranged along different axes is first conducted via the signal subspace, and then the angles can be estimated via 1-D polynomial root finding, which is conducted from the noise subspace. The proposed algorithm can use fully the signal subspace and noise subspace to achieve automatically paired angle estimations with low complexity. Furthermore, it has better angle estimation performance than conventional methods. Simulation results verify the effectiveness of the approach.