| 非正交多脉冲通信系统多用户检测的白化方法 |
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| 引用本文： | 江慧琴,席斌,邱永支,廖礼彬,张翔.非正交多脉冲通信系统多用户检测的白化方法[J].厦门大学学报(自然科学版),2005,44(2):181-184. |
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| 作者姓名： | 江慧琴 席斌 邱永支 廖礼彬 张翔 |
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| 作者单位： | 厦门大学自动化系,福建,厦门,361005 |
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| 摘 要： | 论述了MMSE白化技术在非正交多脉冲调制信号的非相干解相关多用户检测中的应用．作建立了系统模型，并对非正交多脉冲调制信号进行解相关变换，将多用户信道解构为单用户信道，由于解相关变换造成高斯噪声加强，若直接对信号进行判决，必然会影响判决的准确性，本将白化技术应用在此，在解相关后，先将噪声进行MMSE最优白化变换，使其互不相关，再将多用户信道分解成单用户信道，仿真结果证明白化能有效改善性能．
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| 关 键 词： | MMSE白化 非正交多脉冲调制 误码率 非正交多脉冲通信系统 检测方法 白化方法 |
| 文章编号： | 0438-0479(2005)02-0181-04 |
| 修稿时间： | 2004年6月10日 |
MMSE Whitening in Noncoherent Decorrelative Detection for Nonorthogonal Multi-pulse Modulation |
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| JIANG Hui-qin,XI Bin,QIU Yong-zhi,LIAO Li-bin,ZHANG Xiang.MMSE Whitening in Noncoherent Decorrelative Detection for Nonorthogonal Multi-pulse Modulation[J].Journal of Xiamen University(Natural Science),2005,44(2):181-184. |
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| Authors: | JIANG Hui-qin XI Bin QIU Yong-zhi LIAO Li-bin ZHANG Xiang |
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| Abstract: | This paper introduces the application of MMSE whitening and subspace whitening in noncoherent decorrelative detection for nonorthogonal multi-pulse modulation.First,the system model is established,then the signal of nonorthogonal multipulse modulation is decorrelated,after the decorrelation,the multiuser detection problem is reduced into decoupled signal-user problem over equivalent nosie-enhanced signal-user channels.Information is certain to be lost by the means of conventional method. In this paper,the technique of MMSE whitening is applied in the detection.The simulation proves that it does well than conventional detection. |
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| Keywords: | MMSE whitening NMM error probability |
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