基于二次虚拟内插的圆阵接收2D-DOA分离估计

孙学军; 张高毅; 唐斌; 甘泉

doi:10.3724/SP.J.1146.2008.00138

基于二次虚拟内插的圆阵接收2D-DOA分离估计

doi: 10.3724/SP.J.1146.2008.00138

基金项目:

国家部委级基金资助课题

计量
- 文章访问数: 2982
- HTML全文浏览量: 147
- PDF下载量: 929
- 被引次数: 0
出版历程
- 收稿日期: 2008-01-28
- 修回日期: 2008-04-23
- 刊出日期: 2008-08-19

Circle Array Receiving Signal 2D-DOA Separable Estimation Based on Twice Virtual Interpolations

摘要

摘要: 该文将二次虚拟内插技术引入圆阵接收的2D-DOA分离估计中，通过两次虚拟内插获取两虚拟内插阵列之间的移不变因子，利用该移不变因子首先获得俯仰角的估计，再将估计到的俯仰角代入圆阵流型中，经一维搜索即可获得方位角的估计。该方法有效地减小了因虚拟阵列和真实阵列之间的内插误差所带来的估计误差，仿真实验验证了该方法的有效性。
- 信号处理; 虚拟内插; 圆阵接收; 二维到达方向; 分离估计
Abstract: In this paper, the twice virtual interpolations is introduced into the circle array receiving signal 2D-DOA separable estimation, twice virtual interpolations are used to get the rotational invariance factor, the factor is used to get the estimation of elevation angle, then the estimated elevation angle is substituted into the circle array manifold, thus the azimuth angle can be get by one dimensional search. This method reduced the estimation error because of the interpolation error between the virtual array and the real array efficiently, simulation results validate the efficiency of the method.

HTML全文

参考文献(1)

Friedlander B and Weiss A J. Performance analysis of spatialsmoothing with interpolated arrays[J].ICASSP91. Toronto.ONT., Canada.1991, 4:1377-1380[2]Friedlander B and Weiss A J. Performance analysis ofwideband direction finding using interpolated arrays.ICASSP92, San Francisco, CA, USA, 1992. 3: 457-460.[3]Friedlander B. Direction finding using spatial smoothing withinterpolated arrays[J].IEEE Trans. on Aerospace and ElectronicSystems.1992, 28(2):574-587[4]Friedlander B. The root-MUSIC algorithm for directionfinding with interpolated arrays. IEEE Trans. on SignalProcessing, 1993, 41(1): 15-25.[5]Weiss A J and Friedlander B. Performance analysis of spatialsmoothing with interpolated arrays[J].IEEE Trans. on SignalProcessing.1993, 41(4):1881-1892[6]Weiss A J and Gavish M. Direction finding using ESPRITwith interpolated arrays[J].IEEE Trans. on Signal Processing.1991, 39(6):1473-1478[7]Hyberg P, Jansson M, and Ottersten B. Array interpolationand bias reduction[J].IEEE Trans. on Signal Processing.2004,52(10):2711-2720[8]Hyberg P, Jansson M, and Ottersten B. Array interpolationand DOA MSE reduction[J].IEEE Trans. on Signal Processing.2005, 53(12):4464-4471[9]李平安, 孙进才, 俞卞章. 基于插值圆阵的宽带信号二维空间谱估计. 电子科学学刊, 1996, 18(4): 344-348.Li Ping-an, Sun Jin-cai, and Yu Bian-zhang. Two-dimensionalspatial-spectrum estimation for wide-band sources based oninterpolated circular arrays. Journal of Electronics, 1996,18(4): 344-348.[10]唐斌, 肖先赐. 圆阵列接收的信号二维到达方向分离估计. 通信学报, 1999, 20(增刊): 279-283.Tang Bin and Xiao Xian-ci. Separable estimation method for2-D direction of arrival of signal received by circular array.Journal on Communications, 1999, 20(Supplement): 279-283.[11]王鼎, 吴瑛. 基于均匀圆阵的二维ESPRIT 算法研究. 通信学报, 2006, 27(9): 89-95.Wang Ding and Wu Ying. 2-D ESPRIT algorithm researchbased on uniform circular array. Journals on Communications,2006, 27(9): 89-95.

施引文献

资源附件(0)

访问统计