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

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

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。

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.