| UWB中不可分离多径条件下的ML改进算法 |
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| 引用本文： | 李静,陈贤亮. UWB中不可分离多径条件下的ML改进算法[J]. 通信技术, 2008, 41(11) |
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| 作者姓名： | 李静 陈贤亮 |
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| 作者单位： | 重庆邮电大学移动通信重点实验室,重庆,400065 |
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| 摘 要： | UWB(Ultra Wideband)系统多用于室内环境中,其多径干扰非常严重,在这种情况下对信道进行精确估计是非常必要的,但同时也是非常困难的.在可分离多径情况下,最大似然算法具有比较好的性能.而在不可分离多径情况下,最大似然算法的性能很差,文中对ML算法进行了改进,可以比较理想的估出信道参数使其能够适用于不可分离多径环境.
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| 关 键 词： | 超宽带 多径信道估计 |
Improved ML Algorithm in Nonseparable Multipath Condition in UWB System |
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| LI Jing,CHEN Xian-Liang. Improved ML Algorithm in Nonseparable Multipath Condition in UWB System[J]. Communications Technology, 2008, 41(11) |
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| Authors: | LI Jing CHEN Xian-Liang |
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| Affiliation: | LI Jing,CHEN Xian-liang (Chongqing University of Posts , Telecommunications,Chongqing 400065,China) |
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| Abstract: | For UWB system is often used in indoor environment, multipath interference is serious. Channel estimation is more necessary, but is so difficult. In the nonseparable condition, Maximum Likelihood Algorithm is in bad performance. This paper describes the improvement on the ML algorithm, and the improved algorithm can adapt to the nonseparable multipath interference environment. |
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| Keywords: | ML |
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