摘要
建立了伪距和载波相位相结合的ＤＧＰＳ／ＩＮＳ组合系统的状态方程和量测方程，并用滞后状态卡尔曼滤波对伪距和载波相位相结合的ＤＧＰＳ／ＩＮＳ组合系统进行了组合及仿真，给出了详细的仿真数据和仿真曲线。仿真结果表明，该组合系统的精度得到了进一步提高，这是提高导航精度的有效途径，对各种载体的精确导航与制导具有一定的现实意义。
The system state and measurement equations of the integrated system about combining pseudorange with carrier phase are deduced. The integration and simulation of the integrated pseudorange and carrier phase are completed by using delayed state Kalman filter. In the paper the detailed data and simulation chart are presented. The simulation results show that the method can greatly obtain the better precision of navigation. It is a effectual way to improve precision of navigation. It has certain practical significance for precision navigation and guidance of the vehicles.
出处
《南京航空航天大学学报》
EI
CAS
CSCD
北大核心
1998年第1期7-12,共6页
Journal of Nanjing University of Aeronautics & Astronautics
基金
国防科技预研基金
关键词
惯性导航
卡尔曼滤波
伪距
载波相位
组合导航
inertial navigation
Kalman filtering
simulation
pseudorange
carrier phase
