The invention discloses a Laplace extremely short arc orbit determination algorithm based on a particle swarm optimization algorithm, and relates to the field of spacecraft short arc orbit determination computation.The computing method comprises the steps that a coordinate position vector of an observation satellite at each moment and a direction vector obtained through observation of the coordinate position vector are obtained; calculating a Kepler parameter initial value corresponding to a direction vector at each moment and a target position vector corresponding to the Kepler parameter initial value under an inertial system by using a particle swarm algorithm, performing orbit determination on the target position vector at each moment by using a Laplacian method and a least square algorithm, and correcting and eliminating outliers; the orbit parameters corresponding to the short arc section and the true near angles corresponding to all moments are calculated, orbit determination calculation of the target from the direction vector to the final orbit parameters is achieved, deviation caused by outliers during observation is offset, and rapid ultra-short arc orbit determination can be achieved.
本发明公开了一种基于粒子群算法的拉普拉斯极短弧定轨算法,涉及航天器短弧定轨计算领域,计算方法包括,获取每一时刻观测卫星的坐标位置矢量及其观测所得的方向矢量,利用粒子群算法计算每一时刻方向矢量对应的开普勒参数初值及其在惯性系下所对应的目标位置矢量,利用拉普拉斯方法和最小二乘算法对每一时刻目标位置矢量进行定轨、修正并消除野值,计算短弧段所对应的轨道参数和各个时刻对应的真近角,实现了对目标从方向向量到最后的轨道参数的定轨计算,抵消掉了观测时野值带来的偏差,可以快速极短弧定轨。
Laplace extremely short arc orbit determination algorithm based on particle swarm optimization
一种基于粒子群算法的拉普拉斯极短弧定轨算法
2024-11-12
Patent
Electronic Resource
Chinese
IPC: | G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS / B64G Raumfahrt , COSMONAUTICS / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen |
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