CAJ | 학술논문

利用在轨光学相机对空间目标进行跟踪测量,目标相对运动角参数的测量精度决定了空间目标的定轨精度.建立目标相对运动角参数测量计算数学模型,推导出相对运动角参数测量误差传递公式.通过对仿真计算结果的分析,确定出影响目标相对运动角参数测量精度的主要误差源:目标成像焦面坐标提取误差、光学相机视轴转动欧拉角测量误差与测量卫星姿态惯性角测量误差.其中,光学相机视轴转动欧拉角测量误差对相对运动角参数的测量误差影响最大,约占总误差的80%.观测条件对测量精度也有很大的影响,尤其在目标过顶时,相对运动角参数的测量误差显著增大.
이용재궤광학상궤대공간목표진행근종측량,목표상대운동각삼수적측량정도결정료공간목표적정궤정도.건립목표상대운동각삼수측량계산수학모형,추도출상대운동각삼수측량오차전체공식.통과대방진계산결과적분석,학정출영향목표상대운동각삼수측량정도적주요오차원:목표성상초면좌표제취오차、광학상궤시축전동구랍각측량오차여측량위성자태관성각측량오차.기중,광학상궤시축전동구랍각측량오차대상대운동각삼수적측량오차영향최대,약점총오차적80%.관측조건대측량정도야유흔대적영향,우기재목표과정시,상대운동각삼수적측량오차현저증대.
Measure precision of relative movement angles for space object determines the orbit determination precision of Space Non-Cooperative Object, which tracked and measured by spaceborne electron-optical sensor. The measure and calculation model is established and measure error transformation formula of relative movement angles is deduced. According to the result of simulation based on the measure error model of relative movement angles, it is concluded that focal plane coordinates extraction error for space object, measure error of pointing angle of optical axis, and satelliteinertial attitude angles measure error, are the main disturbance factors which influence the measure precision of relative movement angles. Measure error of pointing angle of optical axis is the key among the error factors above-mentioned, which occupied about 80%. In addition, measure condition influences the measure precision of relative movement angles for space object and severe varying of pointing angle especially the space object locating above the measure satellite.