基于卡尔曼滤波的北斗/GPS双模数据融合轨迹定位
Trajectory Positioning Based on Kalman Filter BDS/GPS Data Fusion
徐才秀 1陈功 2胡宁1
作者信息
- 1. 江苏北斗卫星导航检测中心有限公司;南京市计量监督检测院
- 2. 南京市计量监督检测院
- 折叠
摘要
全球卫星导航系统中,高精度定位是关键的性能指标之一.目前,我国自主研发的北斗卫星导航系统(以下简称:BDS)与美国主导的全球卫星定位系统(GPS)处于世界领先地位.虽然其定位精度较高,但硬件级系统的固有问题,使定位仍然存在误差.该项目基于卡尔曼滤波法,通过双模定位模块,将BDS与GPS的定位数据进行融合,极大地提高了定位精度,降低了误差.
Abstract
In global satellite navigation system,high precision positioning is one of the key performance indexes.At present,China's self-developed Beidou satellite navigation system(hereinafter referred to as:BDS)and the US-led global Satellite Positioning System(GPS)are in a leading position in the world.Although its positioning ac-curacy is high,the inherent problems of hardware-level systems still cause positioning errors.Based on the Kalman filter method,the project integrates the positioning data of BDS and GPS through the dual-mode positioning mod-ule,which greatly improves the positioning accuracy and reduces the error.
关键词
全球卫星定位系统/北斗卫星导航系统/卡尔曼滤波器/数据融合Key words
GPS/BDS/kalman filter/data fusion引用本文复制引用
基金项目
江苏省市场监管局科技计划(KJ2023035)
出版年
2024