月球探测中转移轨道误差分析和中途修正计算

摘要

For the sample return lunar missions and human lunar exploration,this paper studies the characteristics of both the Earth-Moon transfer orbit and the return orbit.On the basis of the error propagation matrix,the linear equation to estimate the first midcourse trajectory correction maneuver (TCM) is figured out.Numerical simulations are performed,and the features of error propagation in lunar transfer orbit are given.The advantages,disadvantages,and applications of two TCM strategies are discussed,and the computation of the second TCM of the return orbit is also simulated under the conditions at the reentry time.%针对返回型月球探测器,基于月球探测中转移轨道的动力学特征和误差传递矩阵的性质,分别对地月转移轨道和月地转移轨道的误差传递特点进行了研究,并根据误差传递矩阵给出估算第1次中途轨道修正速度增量的线性公式.通过具体算例,给出在实际力学模型下月球探测中转移轨道误差传递性质,讨论了目标点和目标轨道两种不同的轨道修正方法的特点和适用情形,并结合再入约束条件对月地转移轨道第2次中途修正进行了分析和计算.