适用于高机动性星敏感器的星像坐标提取方法  

Obtaining Method of Star Location for Star Sensor of High Maneuverability

作　　者：蒋明[1] 喻明艳[1] 王进祥[1] 来逢昌[1] 

机构地区：[1]哈尔滨工业大学微电子中心,黑龙江哈尔滨150001

出　　处：《微电子学与计算机》2009年第7期102-104,共3页Microelectronics & Computer

基　　金：国家"九七三"计划项目(5131201005)

摘　　要：提出了一种有效的星像坐标提取方法,该方法根据星像拖尾的特点,通过对拖尾星像进行预处理使之接近理想的星像特征,然后采用重心算法提取其星像坐标.仿真结果表明该方法提取的星像坐标误差比直接采用重心算法提取的星像坐标误差明显减少,从而提高了星敏感器的精度和机动性.An effective method of obtaining star location is proposed in this paper. This method transformed star location data with trail into approximately ideal star location data according to characteristic of star location with trail, and then used the centroid algorithm to calculate star location. The simulation results show that the method in this paper has less error in obtaining star location by contrast to centroid algorithm and it may enhance precision and maneuverability of star sensor.

关 键 词：星敏感器 星像坐标提取 重心算法 机动性 

分 类 号：V448.22[航空宇航科学与技术—飞行器设计]