摘要
本文对目前已成为导航技术发展方向的组合导航系统提出一种新的闭环校正方 法，即用误差 状态估值累加抵消输出实现闭环校正，并以INS/GPS组合系统为例，说明了具 体算法，给出 了计算机模拟结果.这种方法兼有闭环校正和开环校正的优点，可应用于各种 测距间接滤波 定位的组合导航系统，颇有实用价值.
This paper devises a new method of close-loop rectification for integrated navigation system, which is the important developing direction of the navigation technique at present. This method realizes close-loop rectification by using the accumulated error to compensate the output of the subsystems. Taking the INS/GPS integrated system as example, the paper illustrates the practicable algorithm, and provides the result of computer simulation. The method has the advantages of the open-loop and close-loop rectifications, and can be used in various navigation systems which use indirect-filter-positioning method by the measurement of pseudo-range. As a result, the method has extraordinary practical value in the technique developed for the integrated navigation systems.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2001年第9期1221-1224,共4页
Acta Electronica Sinica
关键词
组合导航系统
INS/GPS
误差累加
闭环校正
Algorithms
Closed loop control systems
Computer simulation
Error compensation
Global positioning system
Kalman filtering
Measurements
