基于选择性权重机制的GPS/DR车载定位系统研究  

Research on GPS/DR Vehicle Positioning System Based on Selective-Weighted Mechanism

作　　者：张永健[1] 吴亚洲[1] 

机构地区：[1]河北工程大学信息与电气工程学院,河北邯郸056038

出　　处：《计算机测量与控制》2010年第4期938-940,958,共4页Computer Measurement &Control

摘　　要：为解决GPS信号受环境影响存在的定位盲区问题,并进一步提高定位精度,进行了基于选择性权重机制的GPS/DR组合定位技术的研究;在此基础上,以微控制器AT91RM9200和嵌入式操作系统μC/OS-Ⅱ为核心,结合陀螺仪、加速度计和GPS,设计并实现了嵌入式车载定位系统;该方法不仅使定位精度得到改善,还能够在无GPS信号时连续定位,提高了系统可靠性。In order to solve the positioning blind zone caused by the poor signal quality of GPS, and to improve the positioning accuracy, GPS/DR integrated positioning technology based on selective-weighted mechanism is researched. On this basis, make ATglRM9200 and μC/OS-Ⅱ as core, an embedded vehicle positioning system was achieved combined with gyroscopes, accelerometer and GPS. This method can improve the positioning accuracy and can continue positioning in the absence of GPS signal to improve system reliability.

关 键 词：选择性权重机制 GPS/DR组合定位 车载定位系统 

分 类 号：TN967.1[电子电信—信号与信息处理]