CAJ | 학술논문

为了对无源探测卫星系统的定轨方式和精度进行定量分析,通过坐标转换、受力分析、拟合、最小二乘法、微分方程数值解法与误差分析等方法,建立了基于卫星无源探测的空间飞行器在主动段的交汇定位优化模型和运动方程模型.基于模拟数据和模型,给出了卫星和空间飞行器的轨道曲线以及卫星的系统误差.经过系统误差修正,空间飞行器的估计轨道误差仅为7.5821 m.
위료대무원탐측위성계통적정궤방식화정도진행정량분석,통과좌표전환、수력분석、의합、최소이승법、미분방정수치해법여오차분석등방법,건립료기우위성무원탐측적공간비행기재주동단적교회정위우화모형화운동방정모형.기우모의수거화모형,급출료위성화공간비행기적궤도곡선이급위성적계통오차.경과계통오차수정,공간비행기적고계궤도오차부위7.5821 m.
For quantitative research on location and error of satellite system,optimization model of intersection orbit location and motion equation model for space vehicle in active period based on passive detection satellite are comprehensively built by some mathematical methods,which involves coordinate conversion,force analysis,fitting,least square method,numerical solution of dif?ferential equation,and error analysis method. Then the satellite system’s error and the space vehicle’s orbit are estimated. Based on simulation data and these models,the orbit curves of satellite and other space vehicle and the system error of satellite are given. Through system error correction,the space vehicle’s track error is estimated only 7.582 1 m. These models are of important theoreti?cal and practical significance for the location of space vehicle.