用于移动定位的窄带TDMA信号到达时间估计

IEEE International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 1998-09-08 DOI:10.1109/PIMRC.1998.733607

Sven Fischer, H. Grubeck, Ari Kangas Ericsson, H. Koorapaty, E. Larsson, Patrik Lundqvist

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引用次数: 37

摘要

最近，蜂窝系统中的定位服务受到越来越多的关注。提出了需要测量到达时间和角度的定位问题的解决方案。研究了多径环境下窄带数字信号视距分量到达时间(TOA)的估计问题。提出了一种低信噪比下的TOA估计算法。该算法利用移动信道的衰落统计特性来对抗多径传播。通过对GSM和is -136信号的COST传播模型进行仿真，得到了算法的性能。

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Time of arrival estimation of narrowband TDMA signals for mobile positioning

Positioning services in cellular systems have received increased attention recently. Solutions of the positioning problem requiring time and angle of arrival measurements have been proposed. The problem of estimating the time of arrival (TOA) of the line of sight (LOS) component of narrowband digital signals in a multipath environment is addressed. A TOA estimation algorithm designed to operate under low SNR is proposed. The algorithm combats multipath propagation by exploiting the fading statistics of the mobile channel. Performance of the algorithm obtained through simulations using COST propagation models for GSM and IS-136 signals is shown and is promising.

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IEEE International Symposium on Personal, Indoor and Mobile Radio Communications

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