| 智能天线与多用户检测的联合抗干扰模型构建 |
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| 引用本文： | 邓小飞,孙伟,史劲. 智能天线与多用户检测的联合抗干扰模型构建[J]. 吉首大学学报(自然科学版), 2015, 36(2): 52-54. DOI: 10.3969/j.issn.1007-2985.2015.02.011 |
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| 作者姓名： | 邓小飞 孙伟 史劲 |
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| 作者单位： | （吉首大学信息科学与工程学院，湖南 吉首 416000） |
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| 基金项目： | 吉首大学校级科研资助项目(13JDX007)；吉首大学大学生研究性学习与创新性实验计划资助项目(JSU-CX-2013-10) |
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| 摘 要： | 联合抗多址干扰技术是目前移动通信技术研究的热点.将智能天线与多用户检测技术相结合可抑制相干干扰,改善系统的误码率性能,提高移动通信系统的有效性与可靠性,优化无线资源的利用率.提出了采用智能天线接收后进行多用户检测的CDMA系统模型,并引入基于LMS算法的自适应滤波器来消除窄带干扰.Matlab软件仿真结果表明,联合抗干扰模型较好地提升了误码率性能.
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| 关 键 词： | CDMA系统 智能天线 多用户检测 LMS算法 自适应滤波器 |
Combined Anti-Interference Technology Based on Smart Antenna and Multi-User Detection |
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| DENG Xiaofei , SUN Wei , SHI Jing. Combined Anti-Interference Technology Based on Smart Antenna and Multi-User Detection[J]. Journal of Jishou University(Natural Science Edition), 2015, 36(2): 52-54. DOI: 10.3969/j.issn.1007-2985.2015.02.011 |
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| Authors: | DENG Xiaofei SUN Wei SHI Jing |
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| Affiliation: | (College of Information Science and Engineering,Jishou University,Jishou 416000,Hunan China) |
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| Abstract: | The combined technology against multiple access interference is a new research field.This article combines smart antenna with the multi-user detection to suppress coherent interference and to improve the bit error rate of the system.In addition,it adopts these key technologies for wireless resource utilization.The paper puts forward a CDMA system model of using multi-user detection after smart antenna,and meanwhile introduces the adaptive filter based on LMS algorithm to eliminate the narrow band interference.At last,it analyzes the nature through Matlab simulation.The results show that the joint anti-interference has better bit error rate performance. |
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| Keywords: | CDMA system smart antenna multi-user detection LMS algorithm adaptive filter |
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