| 基于布谷鸟搜索算法的最大似然DOA估计 |
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| 引用本文： | 张义元,张志成,石要武,刘昱兵.基于布谷鸟搜索算法的最大似然DOA估计[J].吉林大学学报(信息科学版),2015,33(3):235-240. |
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| 作者姓名： | 张义元 张志成 石要武 刘昱兵 |
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| 作者单位： | 吉林大学 通信工程学院, 长春 130012 |
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| 基金项目： | 国家自然科学基金资助项目(51075175;61201368)，吉林省产业技术研究与开发基金资助项目(JF2012C013-3) |
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| 摘 要： | 为解决最大似然DOA(Direction of Arrival)估计多维非线性搜索计算量大的问题, 将布谷鸟搜索算法与最大似然算法相结合, 利用布谷鸟搜索算法优化多维非线性的最大似然DOA估计谱函数。在保留布谷鸟搜索算法的主体思想的同时, 改进了算法的位置迭代方式, 加快了收敛速度。仿真结果表明, 改进的布谷鸟搜索算法在DOA估计中具有较好的收敛性, 估计性能较好。
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| 关 键 词： | DOA估计 最大似然估计 布谷鸟搜索算法 |
| 收稿时间： | 2014-10-28 |
Cuckoo Search Algorithm to Maximum Likelihood DOA Estimation |
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| ZHANG Yiyuan,ZHANG Zhicheng,SHI Yaowu,LIU Yubing.Cuckoo Search Algorithm to Maximum Likelihood DOA Estimation[J].Journal of Jilin University:Information Sci Ed,2015,33(3):235-240. |
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| Authors: | ZHANG Yiyuan ZHANG Zhicheng SHI Yaowu LIU Yubing |
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| Institution: | College of Communication Engineering, Jilin University, Changchun 130012, China |
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| Abstract: | In order to solve the maximum likelihood DOA(Direction of Arrival) and to estimate shortcoming of large calculated amount in multidimensional nonlinear search, this work combines the cuckoo search algorithm and the maximum likelihood algorithm, using the advantage of cuckoo search algorithm which has a fast searching speed, to optimize multidimensional nonlinear spectral function of maximum likelihood estimationof DOA. This work improves the position iteration algorithm speeding up the convergence, and preserves the main idea of Cuckoo search algorithm at the same time. The simulation results show that the modified cuckoo search algorithm has better convergence in DOA estimation, and the estimate performance is better. |
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| Keywords: | direction of arrival(DOA) estimation maximum likelihood cuckoo search algorithm |
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