Single-satellite Simulator Digital Light Source Development Technology

The single star simulator introduced in the paper is a testing equipment simulating a star in the lab, in this way the functional testing for the detecting and interspatial distinguish ability of a star sensor can be carried out and the simulated star can be given at real.Aimed at getting rid of big bulk, low precision, limited secular stability and high cost price the single star simulator used to be, while based on the practical demands in single star simulator project and combining with the technical specifications of star sensor for user, the paper proposes to use high stability adjusted digital light source as the core elements of the single star simulator, and describes development methods and development technologies for the whole system of the single star simulator from the view of project application.The operating principle, design, manufacture, machining, calibration and testing of the whole system are introduced described in detail in the paper. The key unit techniques such as hardware design and software design of the digital light source are emphatically introduced.