短波红外全天时自主天文导航技术展望

Prospect of the Self-Determination Celestial Navigation Technology with Daytime SWIR

摘要:

基于 2微米全天巡天(2MASS)短波红外巡天点源星表,分别从白天可探测恒星分布、天空背景辐射与大气传输、传感器性能和光学系统视场大小等方面,分析了短波红外波段相对于可见光波段,在大气层内白天观星实现 全天时天文导航的优势,并展望了其发展方向。

Abstract:

Through these factors of the distribution of stars observed in daytime, sky background radiation and at. mospheric transmission, CCD characteristics, the size of the filed-of-view , the advantage of short wavelength in. frared light for celestial navigation system was analyzed based on 2MASS point sources catalog demonstrated working in both nighttime and daytime on the ground or the sea by utilizing observations of stars, and the pros. pect of the self-determination celestial navigation technology daytime with SWIR is analyzed.