| 基于一步特征值分解的T-ESPRIT算法 |
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| 引用本文： | 刘福来,汪晋宽,于戈. 基于一步特征值分解的T-ESPRIT算法[J]. 通信学报, 2006, 27(3): 115-118 |
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| 作者姓名： | 刘福来 汪晋宽 于戈 |
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| 作者单位： | 1. 东北大学,信息科学与工程学院,辽宁,沈阳,110004;中国电子科技集团公司第54研究所,河北,石家庄,050081
2. 东北大学,信息科学与工程学院,辽宁,沈阳,110004 |
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| 摘 要： | 在分析了时延估计算法的特点和性能之后,提出了基于一步特征值分解的T-ESPRIT(OT-ESPRIT)算法,此算法只需一步特征值分解就可以求解无线网络环境中多径窄带信号的时延,与T-ESPRIT算法相比,该算法具有较好的顽健性和较小的估计误差。仿真结果证明了该算法的有效性。
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| 关 键 词： | 多径 联合估计 时延 |
| 文章编号： | 1000-436X（2006）03-0115-04 |
| 收稿时间： | 2005-05-17 |
| 修稿时间： | 2005-12-30 |
T-ESPRIT algorithm based on one step EVD |
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| LIU Fu-lai,WANG Jin-kuan,YU Ge. T-ESPRIT algorithm based on one step EVD[J]. Journal on Communications, 2006, 27(3): 115-118 |
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| Authors: | LIU Fu-lai WANG Jin-kuan YU Ge |
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| Affiliation: | 1, School of Information Science and Engineering Northeastern University, Shenyang 110004, China; 2. The 54th Research Institute of CETC, Shijiazhuang 050081, China |
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| Abstract: | For estimating the delays of narrowband signals in wireless multipath environments, a T-ESPRIT algorithm based on one step eigenvalue decomposition (EVD) was proposed after discussing the features and performances of delay estimation algorithms. Making use of the algorithm, only one-step EVD was needed to estimate delays. Compared with the previous work, the new approach calls for low computational complexity, but exhibited superior performance, such as smaller estimation error and better robustness to signal-to-noise ratio (SNR) change etc. It was applicable to a lower SNR scenario. The simulation resulted show the effectiveness of the method. |
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| Keywords: | T-ESPRIT EVD |
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