Airborne INS/CNS Deeply Integrated Algorithm on Celestial Angle Observation
Aims at the influence of attitude errors on the celestial angle observation,a new deeply algorithm of airborne INS/CNS integrated navigation based on celestial angle observation is presented. According to the analysis of the position angle errors,the attitude angle errors between the geographic coordinate and the calculating coordinate are analyzed. Then the deeply integrated observation equations based on the celestial height and azimuth angle are established. Due to the height information cannot be got through the angle observation, the air height is introduced to the system. Because of attitude errors' affection on celestial observation, the presented algorithm is suitable for the INS/CNS integrated system. Finally, a flight model is used as an illustrate example and the simulation results show the effectiveness and feasibility of the proposed method.
celestial navigation system (CNS)inertial navigation system (INS)deeply integrationcelestial observation
国家科技期刊平台
NSTL
万方数据
维普
