A GPS/compass based train integrated positioning method for high-speed railways

2012 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2012-10-08 DOI:10.1109/APWC.2012.6324961

Jiang Liu, B. Cai, Yunpeng Wang, Jian Wang, W. Shangguan

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引用次数: 12

Abstract

Accurate and real-time positioning is an important part of train control, which is crucial for safety assurance of high speed railway in China. For GPS based train positioning scheme, the signal unavailability and signal interference could not be completely solved with current configuration mode. In this paper, from the safety requirements of train positioning in high-speed railways, based on the consideration of signal availability and fault-tolerant performance, an integrated train positioning system is formed by integration of GPS and Compass. The structure and function of the integrated system are given, and the nonlinear filter solution for information fusion is presented, which is compared to traditional Kalman filter based strategies. An HTL-based integrity monitoring method is presented to enhance fault tolerant ability. Results from experiments and simulations demonstrate the integrated positioning method could meet the precision requirement with effective integrity characteristics, and keep its potential for efficiency and safety in various environments.

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基于GPS/compass的高速铁路列车综合定位方法

准确、实时的列车定位是列车控制的重要组成部分，对中国高速铁路的安全保障至关重要。对于基于GPS的列车定位方案，现有的配置方式不能完全解决信号不可用和信号干扰问题。本文从高速铁路列车定位的安全要求出发，在考虑信号可用性和容错性能的基础上，将GPS和Compass集成在一起，形成了一个一体化的列车定位系统。给出了集成系统的结构和功能，提出了用于信息融合的非线性滤波方案，并与传统的基于卡尔曼滤波的策略进行了比较。为了提高系统的容错能力，提出了一种基于html的完整性监控方法。实验和仿真结果表明，该方法在满足精度要求的同时，具有有效的完整性特性，并在各种环境下保持其效率和安全性的潜力。

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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来源期刊

2012 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)

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