Method and Simulation of Autonomous Navigation for Satellite by a Combination Star Sensor with Large View Field and Starlight Refraction
WANG Guo-quan1,2,3, JIN Sheng-zhen3, SUN Cai-hong3, NING Shu-nian1 (1 Beijing Branch, China University of Mining and Technology, Beijing, 100083, China; Computer Department, Heilongjiang Institute of Science and 2 Technology, Harbin, 150027, China; National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100012, China) 3
s: A kind of new method of autonomous navigation for satellite with high precision is given by analyzing factors of affecting navigation precision based on starlight refraction. That is, the method is that the simultaneity measurement of the three stars near the earth’s edge by a combination star sensor with large view field, and direction and position of the earth's core is accurately determined through geometrical position among satellite, the earth, star direction and a given model of starlight refraction through atmosphere to realize high precision autonomous navigation for satellite. A simulation model of the method is set up using filtering algorithm of extend Kalman, and the system simulation is made using simulative data at the basic of a synchronization satellite of the earth. The simulation results show that the method has much higher accuracy of navigation.
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