车辆定位系统中的信息融合方法

采用卫星定位一航位推算系统(GPS—DR)和数字音频广播-GSM移动通信系统(DAB—GSM)的融合定位系统，研究智能交通系统中各种先进的车辆定位技术，重点探讨了GPS—DR和DAB—GSM融合定位系统的原理和使用情况，给出了主要模型和公式，并对其特点进行了比较。结果表明，这两种技术都能在一定程度上满足高精度和低成本的要求，但应用层面并不相同；DAB—GSM的研究成果将为DAB和GSM网络应用于车辆定位技术开拓新的空间。

Information Fusion Methods for Vehicle Positioning System

An advanced vehicle positioning technique in the in telligent traffic system had been investigated, putting stress on the principles and applications of the positioning system which combines GPS-DR with DAB-GSM , giving its main models and computing formulae and making a comparison of its c haracteristics. The results show that, to a certain degree, both techniques meet the requirements of high precision and low cost despite their different applied fields. However, the findings in the research on DAB-GSM will certainly carve out a brilliant future in the use of DAB and GSM networks for vehicle positionin g techniques.