扩展无线电干涉定位系统布设范围的参数优化方法

doi:1000-436X(2010)9A-0047-06

摘要/Abstract

摘要：

定量分析了相位误差、频点间隔和频点数量等参数对无线电干涉测距（RIR,radio interferometric ranging）技术测距性能的影响，提出了扩展无线电干涉定位系统布设范围的参数优化方法，该方法能够在保持测距精度的同时扩展RIR距离估算的整周模糊解周期。现场实验表明，当节点间的布设距离达到公里级时，RIR技术仍然能够达到米级的测距精度，从而使得对稀疏布设的无线传感器网络节点的精确定位成为可能。

关键词: 无线电干涉测距, 参数优化, 整周模糊解, 无线传感器网络

Abstract:

The impact of parameter setting on the performance of radio interferometric ranging(RIR)was quantitatively analyzed,including phase error distribution,carrier frequency separation and its number.Then a parameter optimization method was proposed to further extend the deployment area of radio interferometric positioning system (RIPS),which could further extend the ranging ambiguity period of RIR as well as keep a high ranging accuracy.Outfield experiment shows that the ranging error of RIR is restricted to several meters while the deployment distance can be extended to over one kilometer,which makes RIR capable of implementing precise localization in sparsely deployed wireless sensor network.

Key words: RIR, parameter optimization, ranging ambiguity, wireless sensor network

朱亚松,刘鹏,黄珊. 扩展无线电干涉定位系统布设范围的参数优化方法[J]. 通信学报, 2010, 31(9A): 47-52.

Ya-song ZHU,Peng LIU,Shan HUANG. Parameter optimization method to extend deployment area of radio interferometric positioning system[J]. Journal on Communications, 2010, 31(9A): 47-52.

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参考文献 8

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