国防科技大学学报2017，Vol.39Issue(1)：24-29,6.DOI:10.11887/j.cn.201701005
采用多敏感器相互校正的卫星入轨姿态计算方法
Calculation of satellite′s initial attitude using multi-sensor intercalibration
摘要
Abstract
After the satellite is separated from the upper stage, the initial attitude is not learned about since the attitude sensors are not valid for the measurement.In order to solve this problem, an initial attitude calculation method using multi sensors' intercalibration was designed.The kinematic equation was set firstly, and then the first available attitudes measured by star sensor as well as gyro's angular velocity were prepared.The nonlinear equation was solved by using the trust region algorithm;meanwhile the attitude was obtained from backward to forward;the analog sun vector detector's information was used to revise the deduction;a convenient method translating the attitude from the sun to the earth was put forward;sun vector was connected to star sensor's information.The deduction result is consistent with injection attitude of rocket.Simulation result on the ground was compared with the real attitude in orbit, validating the correctness of simulation model.The result provides support for the design of satellite and the procedure design and improvement of flight.关键词
姿态确定/信赖域方法/入轨姿态分析Key words
attitude determination/trust region method/initial attitude analysis分类
航空航天引用本文复制引用
李笑月,熊淑杰,林宝军..采用多敏感器相互校正的卫星入轨姿态计算方法[J].国防科技大学学报,2017,39(1):24-29,6.基金项目
国家重大专项资助项目(SYDH04) （SYDH04）
