一种新的TDOA估计模型及其性能

IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211) Pub Date : 2001-10-07 DOI:10.1109/VTC.2001.957261

L. Zhu, Jinkang Zhu

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引用次数: 14

摘要

TDOA估计技术在雷达、声纳、GPS等多种定位系统中得到了广泛的应用。但是，蜂窝定位系统由于其严重的多径传播特性，在使用TDOA时比传统的定位系统要困难得多。因此，寻找一种新的在各种传播环境下都具有鲁棒性和准确性的TDOA估计模型和算法对蜂窝系统来说是一项尤为重要的任务。本文结合多径均衡和识别技术，提出了一种新的蜂窝定位系统TDOA估计模型和算法。理论和计算机仿真都证明了简单的估计算法可以在该模型中获得良好的估计结果。

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A new model and its performance for TDOA estimation

It is well known that the TDOA estimation technique has been widely used in many kinds of location systems, such as radar, sonar and GPS etc. But, because of its serious multipath propagation the cellular location system has much more difficulty in using TDOA than those traditional location-oriented systems mentioned. And so, looking for a new TDOA estimation model and algorithm that is robust and accurate in all kinds of propagation environments is an especially important task for cellular systems. This article combines multipath equalization and identification techniques and proposes a new model and algorithm for TDOA estimation in a cellular positioning system. Theory and computer simulation both prove that a simple estimation algorithm can obtain good estimation results in this model.

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IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211)

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