摘要
根据科学发展和高精度导航的要求,提出了一个由GPS 接收机、速率方位惯性平台和重力敏感器构成的精确重力测量组合导航系统,给出了该组合系统在速率方位地平坐标系下的误差方程和Kalman 滤波方法以及计算机仿真结果。数字仿真表明:由中等精度的陀螺仪和加速度计以及GPS 组成的组合导航系统平台水平误差角小,定位精度高,能够满足重力测量和导航要求。
Based on the requirements of science development and high precision navigation, an exact gravity measuring and integrated navigation system is presented, which combines GPS receiver, rate azimuth inertial platform, and a gravity sensor. Some equations of the integrated system in rate azimuth horizontal reference frame, method of Kalman filtering and corresponding simulation results are given. Digital simulation shows that the integrated navigation system of moderate precision accelerometers, gyroscopes and GPS, has small platform angle error, high positioning precision and can meet the requirements of gravity measuring and navigation.
出处
《中国惯性技术学报》
EI
CSCD
2005年第2期35-40,共6页
Journal of Chinese Inertial Technology
基金
"十五"国防预研项目
