| DS-CDMA系统中基于矩阵点除算法的DOA估计 |
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| 引用本文： | 王维新,吴镇扬,彭岳星,刘陈.DS-CDMA系统中基于矩阵点除算法的DOA估计[J].应用科学学报,2004,22(2):149-152. |
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| 作者姓名： | 王维新 吴镇扬 彭岳星 刘陈 |
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| 作者单位： | 东南大学,无线电工程系,江苏,南京,210096 |
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| 基金项目： | 国家863计划资助项目(2001AA123015) |
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| 摘 要： | 针对DS-CDMA系统的多用户环境，提出了一种有效的DOA估计算法，该算法首先分离出每一条路径上的信息，然后通过矩阵点除运算，高效地实现了DOA估计，算法避免了特征值分解这类复杂运算，同时也不需要估计信源个数并自动实现了路径配对，是一种简便易行的高精度算法，仿真实验验证了算法的有效性。
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| 关 键 词： | DS-CDMA系统 矩阵点除算法 DOA估计 智能天线 空时信号处理 波达方向 |
| 文章编号： | 0255-8297(2004)02-0149-04 |
Element-Wise Division Algorithm for DOA Estimation in DS-CDMA Systems |
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| WANG Wei-xin,WU Zhen-yang,PENG Yue-xing,LIU Chen.Element-Wise Division Algorithm for DOA Estimation in DS-CDMA Systems[J].Journal of Applied Sciences,2004,22(2):149-152. |
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| Authors: | WANG Wei-xin WU Zhen-yang PENG Yue-xing LIU Chen |
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| Abstract: | In this paper, an effective DOA estimation algorithm is presented for DS-CDMA systems under multi-user environment. First, the information associated with each path is extracted. Then, DOA's are efficiently resolved using the proposed element-wise division operations. The algorithm requires neither complex eigenvalue decomposition operations nor source number estimation. In addition, paths pairing are matched automatically. Generally speaking, the proposed algorithm is high in resolution and easy to implement in practice. Simulations confirm the effectiveness of the algorithm. |
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| Keywords: | direction of arrival (DOA) smart antenna space-time processing |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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