摘要
天文导航不可避免地要涉及到一个选星的问题,选星准确与否直接影响天文导航的定位精度。基于模糊逻辑的方法,以天体的星等、高度和方位为主要依据,给出选星系统的模型;进而利用最小二乘法原理对多天体定位系统的误差进行处理。仿真结果验证了该选星系统是可行的,误差数学模型合理有效,具有一定的实际应用价值。
The problem of star-choosing is inevitable in celestial navigation, Whether star-choosing is accurate influences the positioning precision of celestial navigation. Based on fuzzy logic method, star-choosing system model was introduced according to star grade, height and azimuth and celestial positioning system error was processed by least square method. Simulation result shows that this star-choosing system is feasible, and error mathematics model is reasonable and effective and the system has certain actual application value.
出处
《系统仿真学报》
EI
CAS
CSCD
北大核心
2007年第7期1428-1429,1568,共3页
Journal of System Simulation
关键词
天文定位
模糊逻辑
模糊隶属度
最小二乘法
celestial positioning
fuzzy logic
fuzzy membership
least square method
