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利用自适应均衡滤波器改善大气湍流信道OWC性能 被引量:1

Performance improvement for optical wireless communication using adaptive LMS equalizer through turbulent atmospheric channel
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摘要 光无线通信是近年来无线通信领域的研究热点之一。大气湍流是影响光无线通信的重要因素,特别是在高速数字通信中会产生严重的码间干扰。本文分析了大气湍流信道的特性,提出采用自适应LMS均衡技术改善大气湍流信道的性能,对采用OOK调制方式的OWC系统均衡前后的误码率性能进行了分析比较。仿真结果表明自适应LMS均衡技术可以将系统的性能提高约10dB。 In optical wireless communication(OWC) links,atmospheric turbulence is an important factor degrading the performance of systems,which causes serve inter symbol interference especially in high band-width digital communication.In this paper,atmospheric turbulence is studied and a theoretical model is proposed to describe turbulent channel.An adaptive equalizer based on the least mean square(LMS) algorithm is present to improve performance of OWC system.The bit error rate(BER) for turbulent channels is derived...
出处 《激光杂志》 CAS CSCD 北大核心 2006年第5期74-75,共2页 Laser Journal
基金 西安理工大学"青年教师特色研究计划" 陕西省"火炬计划"项目(2002HK52)
关键词 光无线通信 大气湍流 OOK 最大似然检测 自适应LMS均衡 optical wireless communication atmospheric turbulence on-off-keying maximum-likelihood detection adaptive LMS equalizer
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参考文献5

  • 1[1]S.Karp,R.Gagliardi,S.E.Moran,and L.B.Stotts.Optical Channels[J].New York:Plenum,1988.
  • 2[2]R.S.Lawrence.Measurements of Atmosphere Turbulence Relevant to Optical Propagation,[J].J.Opt.Soc.Am.,1970,60(6):826.
  • 3[3]J.H.Shapiro and R.C.Harney.Burst-mode atmospheric optical communication[C].Proc.of National Telecommunications Conf.,1980,2751-2757.
  • 4[4]X.Zhu and J.M.Kahn.Free-space optical communication through atmospheric turbulence channels[J].IEEE Trans.Comm,2002,50(8):1293-1300.
  • 5[5]Marius Aharonovich and Shlomi Arnon.Performance improvement of optical wireless communication through fog with a decision feedback equalizer,[J].J.Opt.Soc.Am.,2005,22(8):1646-1654.

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