Hardware-in-the-loop simulationsystem for dual-star-sensor

Starlight navigation technology is widely used in spacecraft. Celestial navigation is designed for star identification and confirmation of satellite attitudes in the space. Sensors of celestial navigation require hardware-in-the-loop simulation system for ground-testing. A new celestial navigation technology is based on dual-star-sensor for the sake of high accuracy and reliability. Hardware-in-the-loop simulation system for ground-testing generates two celestial scenes and projects them into the dual-star-sensors during navigation process by real-time graphics and simulation technologies according to the satellite's orientation.