高精度GPS差分载波相位多普勒/INS新型全组合解算机载TLS外方位元素

基金项目: 国家863计划资助项目(2002AA135300)

详细信息

Accurately Calculating Exterior Orientation Elements of Airborne TLS Using Kalman Filter to Process the New Combination of GPS Double-Difference Carrier Phase and Doppler/INS Data

1 School of Remote Sensing and Information Engineering, Whuhan University, 129 Luoyu Road, Whuan 430079, China;
2 School of Geodesy and Geomatics, Wuhan University, 129 Luoyu Road, Wuhan 430079, Chian;
3 Research Center of GPS, Wuhan University, 129 Luoyu Road, Wuhan 430079, Chian

摘要: 在提出单历元解算GPS模糊度技术的基础上,使用INS间接法误差模型,提出了一种GPS双差载波相位多普勒/INS全组合Kalman滤波的新方法,高精度直接解算机载TLS中的外方位元素。仿真数据试验表明,其姿态精度高于10",位置精度高于10cm。
- TLS /
- 外方位元素 /
- GPS /
- INS /
- 卡尔曼滤波
Abstract: In this paper, a single epoch GPS ambiguity resolution is proposed. Then based on it and using the INS indirect error model, a new method, using Kalman filtering to process the new combination of GPS double-difference carrier phase and Doppler/INS integrated data, is presented. The exterior orientation elements of airborne three-line-scanner can be accurately calculated directly based this method. The experiment used simulated data proved that the precision of attitude is higher than 10 arc second and the precision of position is higher than 10cm.
- TLS /
- exterior orientation elements /
- GPS /
- INS /
- Kalman filtering