Design of High Precision Star Image Locating Method Used In Star Sensor Technology
Nowadays star sensor technology used in aircraft attitude measurement has become more and more popular for its high precision, light weight, without attitude accumulation errors and other advantages. In order to enhance the accuracy of star sensor, it is critical to make efforts to promote the precision of star image locating. High precision star image locating method mentioned in this article includes two aspects. One is sub-pixel dividing algorithm used to acquire the coordinate of stars. The other one is imaging calibration method used to weaken the effect caused by imaging distortion. This method is finally realized in some type of star sensor system. Then an experiment is designed to verify the precision of the method. The result of the experiment shows that the precision of the method is 2 in the experimental environment.
star sensor sub-pixel subdivision Gauss surface fitting method imaging calibration
Shaodi Zhang Honghai Sun Yanjie Wang Xiaomeng Jia Hao Chen
Graduate Department Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sc Image Research Laboratory Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy North China Institute of Computing Technology Beijing, China
国际会议
长春
英文
411-414
2010-08-24（万方平台首次上网日期，不代表论文的发表时间）