一种车辆GPS／DR／DMAP组合导航系统  

GPS/DR/DMAP integrated system for vehicle navigation

作　　者：杨晓云[1] 何恒[1] 施浒立[2] 

机构地区：[1]第二炮兵工程学院,西安710025 [2]中科院国家天文台,北京100012

出　　处：《测绘科学》2008年第5期119-120,123,共3页Science of Surveying and Mapping

摘　　要：车辆导航系统常采用GPS/DR组合导航方式,在实际使用中若采用联邦滤波器,由于设计结构复杂,各种参数选取对滤波器的性能影响较大,选取不当反而引起导航精度的降低。本文设计了一种GPS/DR滤波器,这种滤波器当GPS接收机在失锁时仍能够为用户导航,并且该滤波器结构简单,设计简易。本文采用了DMAP,纠正了车辆相对于道路的偏差。实测导航实验验证了该滤波器能够满足导航精度要求,适用于城市中车辆导航应用。GPS/DR integrated system is used commonly in vehicle navigation. The Federated filter is very complex and if the parameters are unsuitable it will lower the navigation precision. This paper present a simple GPS/DR filter that can be used even the GPS receiver lost lock. The DMAP technique, which corrects the results, is used in the system. The test proves that the system is suitable for vehicle navigation.

关 键 词：GPS/DR/DMAP组合导航 DMAP 卡尔曼滤波 

分 类 号：TN96[电子电信—信号与信息处理]