Velocity estimation of cellular terminals in urban environment using ray tracing

A. Freedman
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引用次数: 2

Abstract

The paper discusses the problem of estimating the velocity of a mobile cellular terminal within an urban, multipath-rich environment, using available geographical information such as terrain and building maps. The method suggested in the paper is the use of ray tracing in order to characterize the propagation environment. The paper discusses the usage of Doppler processing of a signal received from a single antenna and suggests using a two stage algorithm - location followed by velocity estimation. The paper presents an algorithm and an error analysis describing the potential sources of errors encountered in implementation including inaccuracies in the geographical and network databases, measurement accuracy and location accuracy.
城市环境中基于光线追踪的蜂窝终端速度估计
本文讨论了利用地形和建筑地图等可用地理信息估计城市多路径环境中移动蜂窝终端速度的问题。本文提出的方法是利用光线追踪来表征传播环境。本文讨论了对单天线接收信号进行多普勒处理的方法,并建议采用定位和速度估计两阶段算法。本文提出了一种算法和误差分析,描述了在实现中遇到的潜在误差来源,包括地理和网络数据库的不准确性,测量精度和定位精度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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