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IR-UWB测距在多径信道下的时延性能分析 被引量：2

Delay Analysis of IR-UWB-Based Distance Measuring in Multipath Channel
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摘要 TOA(time of arrival)估计是目前基于UWB的室内精确定位最常用的方法.然而由于室内多径因素的影响,TOA估计会不准确,使得测距也有较大误差.该文研究LOS环境下IR-UWB信号在室内多径信道中的时延特性.研究发现,发射的脉冲信号宽度与室内UWB信道信噪比对测距精度影响很大,从而为基于TOA的IR-UWB测距提供了有益参考. Time of arrival （TOA） estimation used with UWB transmission is currently considered as the most popular technique for accurate wireless distance measurement system. Because of the severe indoor multipath components, this estimation may be inaccurate. In this paper, characteristics of delay based on IR-UWB in line-of-sight （LOS） channel are investigated. The results show that the pulse period and SNR of the channels have a considerable influence on precision, which provides useful references to the distance measurement based on IR-UWB.
作者 蒋婷婷 郑国莘 郑瑞杰
机构地区 上海大学通信与信息工程学院
出处 《应用科学学报》 CAS CSCD 北大核心 2007年第3期327-330,共4页 Journal of Applied Sciences
基金 上海市科委国际合作项目(051107044) 上海市重点学科建设项目(T0102)
关键词 超宽带 测距 附加延时 均方根延时 ultra-wide band distance measurement excess delay RMS delay
分类号 TN914 [电子电信—通信与信息系统]
  • 相关文献

参考文献7

  • 1ISMAIL G,ZAFER S.TOA estimation for IR-UWB systems with different transceiver types[J].IEEE Transactions on Microwave Theory and Techniques,2006,4(54):1876-1886.
  • 2MUHAMMAD D,RAM M N.Receiver operating characteristics for the coherent UWB random noise radar[J].IEEE Transactions on Aerospace and Electronic Systems,2001,2(37):586-594.
  • 3LUCIAN S,ALBERTO R.A low-complexity noncoherent IR-UWB transceiver architecture with TOA estimation[J].IEEE Transactions on Microwave Theory and Techniques,2006,4(54):1637-1646.
  • 4庞艳,张立军,陈常嘉.时间平均改进的UWB精确定位算法[J].北京交通大学学报,2005,29(5):60-63. 被引量：6
  • 5PARK W Y,CHOI S.A non-coherent UWB ranging for precision asset location with considering simultaneously operating piconets[C]//ICACT 2006.2006,2 (3):1445 -1448.
  • 6JEFF F.Channel modeling sub-committee report final[EB/OL].[2003-02-01] http://grouper.ieee.org/groups/802/15/pub/2003/Mar03/02490r1P802-15_ SG3a_ Channel-Modeling-Sub-committee-Report-Final.zip.
  • 7BARDIA A,KAVEH P.Modeling of the TOA-based distance measurement error using UWB indoor radio measurements[J].IEEE Communications Letters,2006,4(10):275-277.

二级参考文献6

  • 1Ian Oppermann, Matti Haemaelaeinen, Jari Iinatti. UWB:Theory and Applications[M]. John Wiley & Sons, Ltd.,2004.
  • 2Porcino D, Hirt W. Ultra-Wideband Radio Technology:Potential and Challenge Ahead[J ]. IEEE Commun, Mag,2003,41:66 - 74.
  • 3Fontana R, Gunderson S. Ultra-Wideband Precision Asset Location System[A]. IEEE Conference on Ultra Wideband Systems and Technologies ( UWBST' 02 ) [ C ]. Baltimore:2002. 147- 150.
  • 4Opshaug G R, Enge P. Integrated GPS and UWB Navigation System: Motivates the Necessity of Non-Interference[A]. IEEE Conference on Ultra Wideband Systems and Technologies[ C]. Baltimore: 2002. 123- 127.
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  • 6Bahl P, Padmanabhan V. RADAR: An In-Building RF-BasedUser Location and Tracking System[A]. IEEE IN-FOCOM. Israel[C]. Lsrael 2000. 775 - 784.

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应用科学学报
2007年 第3期

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