车载GPS导航中综合定位的算法研究

城市道路中通行状况瞬息万变,在实际行车过程中,仅靠单一的GPS进行导航定位是件很困难的事情,因为单纯的计算机软件算法不可能适应复杂多变的交通路况。再加上在卫星信号盲区,GPS定位信息无法给出准确位置。为了解决这些难题,提出了综合定位技术,利用它可以有效应对复杂的交通路况,解决信号盲区无法定位的问题,能够给车辆提供准确的定位信息。全文介绍了综合定位技术的原理以及算法,它主要由惯性导航修正技术,道路信息交互导航模型组成。

Research on Comprehensive Positioning Algorithm of the Car GPS

Urban road traffic situation is constantly changing. During the actual driving process,it is a very difficult thing to rely on a single GPS for navigation and positioning,because the simple computer software algorithms cannot adapt to the complex traffic conditions. Coupled with the satellite signal blind area,the GPS positioning information cannot give the exact location. To solve these problems,this article presents a comprehensive positioning technology to respond effectively to the complex traffic conditions,and solve the problem of signal blind area. The article introduces the principles and algorithms of this technology. It mainly consists of the inertial navigation correction techniques and the road information interactive navigation model.