摘要
惯性平台辅助的小视场星体跟踪器工作受气象条件、惯导精度、伺服测角精度等众多复杂因素的影响。为了能够量化分析各误差因素,提高天文导航精度,研究了星体跟踪器的星图模拟技术。根据星体跟踪器测星原理推导并建立了星图模拟的数学模型。依据该模型设计了星图模拟仿真软件,仿真模拟了各误差因素对测星效果的影响。仿真结果验证了模型的正确性,从而可以为星体跟踪器测星及天文导航算法设计提供理论依据。
The operation of small field of view star tracker assisted by inertial platform is affected by many complex factors,such as meteorological conditions,inertial navigation accuracy,servo angle measurement accuracy and so on.In order to analyze the error factors quantitatively and improve the accuracy of celestial navigation,the star map simulation technology of star tracker is studied.According to the principle of star tracker,the mathematical model of star map simulation is derived and established.According to the model,the simulation software of star map is designed,and the influence of various error factors on the measurement effect is simulated.The simulation results verify the correctness of the model,which can provide theoretical simulation for the design of star tracking and celestial navigation algorithm.
作者
李德彪
LI De-biao(The Unit 43 of the No.92941 Troop of PLA,Huludao 125001,China)
出处
《光学与光电技术》
2020年第2期87-92,共6页
Optics & Optoelectronic Technology
关键词
天文导航
星体跟踪器
惯性平台
星图模拟
数学模型
celestial navigation
star tracker
inertial platform
star map simulation
mathematical model
