| TD-SCDMA系统基于MUSIC算法的DOA估计研究 |
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| 引用本文： | 王维猛,焦荣华,邹德财,李晓辉.TD-SCDMA系统基于MUSIC算法的DOA估计研究[J].电子科技,2014,27(4):1-4. |
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| 作者姓名： | 王维猛 焦荣华 邹德财 李晓辉 |
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| 作者单位： | (1.西安电子科技大学 ISN国家重点实验室,陕西 西安 710071;2.民航西北空管局 运行管理中心,陕西 西安 710086;3.中国科学院国家授时中心 导航与通信研究室,陕西 西安 710600) |
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| 基金项目： | 国家自然科学基金资助项目(61201135);国家科技重大专项基金资助项目(2012ZX03001027-004) |
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| 摘 要： | 针对传统DOA估计方法存在分辨率低,且现有多重信号分类算法不适用于TD-SCDMA系统等问题,研究了TD-SCDMA系统中基于MUSIC算法的DOA估计、基于TD-SCDMA系统均匀圆阵阵列模型,通过对其采用预处理技术,推导了TD-SCDMA系统中用于DOA估计的基本MUSIC算法和求根MUSIC算法,并通过仿真分析了影响DOA估计分辨率的因素。仿真分析表明,求根MUSIC算法具有更高的分辨率。
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| 关 键 词： | TD SCDMA 智能天线 DOA MUSIC |
Research on DOA Estimation Based on MUSIC Algorithm in TD-SCDMA System |
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| WANG Weimeng,JIAO Ronghua,ZOU Decai,LI Xiaohui.Research on DOA Estimation Based on MUSIC Algorithm in TD-SCDMA System[J].Electronic Science and Technology,2014,27(4):1-4. |
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| Authors: | WANG Weimeng JIAO Ronghua ZOU Decai LI Xiaohui |
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| Institution: | (1.State Key Laboratory of Integrated Services Networks,Xidian University,Xi'an 030006,China;2.Operation and Management Center,Northwest Regional Administration of CAAC,Xi'an 710086,China;3.Navigation and Communication Research,National Time Service Center,Chinese Academy of Sciences,Xi'an 710600,China) |
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| Abstract: | Aiming at the low resolution of traditional DOA estimation methods and the inability for existing Multiple Signal Classification (MUSIC) algorithm to apply to TD-SCDMA system,this paper makes a study of DOA estimation method based on MUSIC algorithm in TD-SCDMA system.With the Uniform Circular Array (UCA) model of TD-SCDMA system preprocessed,the basic MUSIC algorithm and root-MUSIC algorithm of DOA estimation are derived for TD-SCDMA system.The factors affecting the resolution of DOA estimation are also analyzed.Simulation results and analysis shows that the root-MUSIC algorithm has a higher resolution than the basic MUSIC algorithm. |
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| Keywords: | TD SCDMA smart antenna DOA MUSIC |
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