| 基于Teager-Kaiser算子的改进波束域MUSIC时延估计算法 |
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| 引用本文： | 周非,王路凯,范馨月.基于Teager-Kaiser算子的改进波束域MUSIC时延估计算法[J].重庆邮电大学学报(自然科学版),2011,23(6):712-716. |
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| 作者姓名： | 周非 王路凯 范馨月 |
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| 作者单位： | 重庆邮电大学 无线定位与空间测量研究所，重庆 400065 |
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| 基金项目： | 重庆市教委科学技术研究项目(KJ080520)；重庆市科委自然科学基金(CSTC,2008BB2412)；重庆邮电大学自然科学基金(A2009-33) |
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| 摘 要： | 为了降低波束域多重信号分类(multiple signal classification,MUSIC)算法估计接收信号到达时问(time of arrival,TOA)的计算复杂度,提高算法的抗噪性能,提出一种基于TK算子(Teager-Kaiser operator)的改进算法.利用TK算子对数据瞬时变化敏感的特性,...
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| 关 键 词： | TK( Teager-Kaiser)算子 波束域 多重信号分类(MUSIC)算法 时延估计 多径信号 |
| 收稿时间： | 2011/5/27 0:00:00 |
An improved beam-space MUSIC time delay estimation algorithm based on TK operator |
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| ZHOU Fei,WANG Lu-kai,FAN Xin-yue.An improved beam-space MUSIC time delay estimation algorithm based on TK operator[J].Journal of Chongqing University of Posts and Telecommunications,2011,23(6):712-716. |
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| Authors: | ZHOU Fei WANG Lu-kai FAN Xin-yue |
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| Institution: | Institute of Wireless Location & Space Measurement, Chongqing University of Posts and Telecommunications, Chongqing, 400065, P.R.China |
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| Abstract: | In order to reduce the calculated quantity and improve the function of noise of beam-space multiple signal classification(MUSIC)time delay estimation, an improved algorithm has been presented in this paper. According to the sensitive characteristics of the data's instantaneous change, Teager-Kaiser(TK)operator processes the correlation function of the received and reference signal. Then the beam-space transformation matrix and the beam-space output data can be estimated from the processing result. After that, the paper estimates the time of arrival(TOA)with MUSIC algorithm. Stimulation results show that this method was better than the beam-space MUSIC time delay algorithm. The performance of high-resolution estimate has been improved. |
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| Keywords: | TK operator beam-space multiple signal classification(MUSIC)algorithm time delay estimation multipath signal |
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