飞控与探测2023，Vol.6Issue(4)：26-35,10.
超低轨道地球卫星脉冲星/星光折射/光谱组合导航
Pulsar/Starlight Refraction/Spectrum Integrated Navigation of Ultra Low Orbit Satellite
摘要
Abstract
According to the autonomous requirements of earth ultra-low orbit satellite navigation,a combined astro-nomical navigation method of pulsar/stellar refraction/spectral velocimetry is proposed in this paper.Firstly,the state model of navigation system is established according to the dynamic equation of earth ultra-low orbit satellite.The measurement model of navigation system is established according to the pulse arrival time difference,star re-fraction angle and celestial spectral frequency.Unscented Kalman filter(UKF)is used to reduce the influence of random error on navigation accuracy.A UKF information fusion method is applied to effectively fuse the result data of three astronomical navigation methods.Through computer simulation analysis,the average position navigation error of the integrated navigation method is 85.62m and the average velocity error is 0.190m/s,which can meet the on orbit navigation requirements of earth ultra-low orbit satellites.关键词
超低轨道地球卫星/星光折射导航/脉冲星导航/光谱测速导航/组合导航/天文导航Key words
ultra low orbit satellite/starlight refraction navigation/pulsar navigation/spectral velocimetry naviga-tion/integrated navigation/celestial navigation分类
信息技术与安全科学引用本文复制引用
李君儒,马辛,刘劲,宁晓琳..超低轨道地球卫星脉冲星/星光折射/光谱组合导航[J].飞控与探测,2023,6(4):26-35,10.基金项目
国家自然科学基金(61703022,61873196,62373030) （61703022,61873196,62373030）
科技创新2030-"量子通信与量子计算机"重大项目(2021ZD0303400) （2021ZD0303400）
国家重点大学基础研究经费(YWF-19-BJ-J-307,YWF-19-BJ-J-82) （YWF-19-BJ-J-307,YWF-19-BJ-J-82）
航天科学技术基金(2020-HT-BH-21) （2020-HT-BH-21）
