| 改进的LMS-Rake接收机的性能 |
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| 引用本文： | 王鑫,栾晓明. 改进的LMS-Rake接收机的性能[J]. 应用科技, 2010, 37(4): 27-30. DOI: 10.3969/j.issn.1009-671X.2010.04.007 |
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| 作者姓名： | 王鑫 栾晓明 |
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| 作者单位： | 哈尔滨工程大学,信息与通信工程学院,黑龙江,哈尔滨,150001 |
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| 摘 要： | 为了提高传统Rake接收机在无线通信系统中的性能,消除信号间的干扰和噪声,采用一种改进的基于最小均方误差(LMS)算法的Rake接收机,该结构针对传统的MRC-Rake接收机需通过增加分支数来提高性能,而MMSE-Rake接收机需要进行矩阵的逆运算的不足,利用LMS算法进行权值计算并对步长进行了改进.经过理论分析和仿真结果表明,LMS-Rake接收机较传统的MRC-Rake接收机的性能有较大的提高,并且结构简单、运算复杂度低、易于实现.
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| 关 键 词： | Rake接收机 最大比合并 最小均方误差准则 LMS |
Performance of an improved LMS-Rake receiver |
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| WANG Xin,LUAN Xiao-ming. Performance of an improved LMS-Rake receiver[J]. Applied Science and Technology, 2010, 37(4): 27-30. DOI: 10.3969/j.issn.1009-671X.2010.04.007 |
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| Authors: | WANG Xin LUAN Xiao-ming |
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| Affiliation: | WANG Xin,LUAN Xiao-ming(College of Information , Communication Engineering,Harbin Engineering University,Harbin 150001,China) |
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| Abstract: | This paper proposes an improved LMS-Rake receiver structure to enhance the performance and reduce the intersymbol interference and noise in the wireless communication system.This structure aims at the deficiencies that the traditional MRC-Rake receiver needs to increase the number of branches to improve performance,and the MMSE-Rake receiver requires the matrix inverse operation.Through the LMS algorithm carried on the weight computation,the step computation also has an improvement.Theoretical analysis and ... |
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| Keywords: | Rake LMS |
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