利用姿态调整规避地气光的GSO空间碎片观测方法

Method of GSO Space Debris Observation for Suppression of Earth-atmosphere Radiation by Using Attitude Guidance

针对空间碎片天基光学观测时的地气光规避问题,提出一种利用卫星姿态调整的观测方法。首先,建立地气光对卫星遥感器观测效能影响的数学模型,计算地气光影响卫星弧段。其次,建立空间碎片观测数学模型,对观测方法进行设计。最后,基于STK和MATLAB软件联合仿真,对观测效能进行仿真分析,迭代优化观测方法。以500km太阳同步轨道卫星对地球同步轨道(GSO)空间碎片观测为例,仿真分析其地气光影响弧段及观测效能。仿真结果表明:文章提出的方法可有效克服地气光影响,且观测效能高。

A method of space debris observation in GSO(geosynchronous orbit)by using attitude guidance is proposed to avoid the disturbance produced by earth-atmosphere radiation.Firstly,the mathematical model of the influence of earth-atmosphere radiation on satellite sensor observation effectiveness is established,and the influenced arc section is confirmed.Secondly,the mathematical model of space debris is established to design the observation method.Finally,the observation effectiveness is simulated by connecting STK and MATLAB,which is used to optimize the observation method repeatedly.Taking the GSO space debris observed by 500 km synchronous orbit satellite as an example,both the influence arc section of earth-atmosphere radiation and the observation effectiveness are calculated.And the results show that the observation method developed in the paper can avoid the influence of earth-atmosphere radiation and produce high observation effectiveness.