遗传算法在近圆轨道编队设计中的应用

椭圆参考轨道的卫星编队队形设计比圆参考轨道要困难得多,有时很难找到符合队形要求的初始条件。基于L aw den方程,给出了利用遗传算法设计椭圆参考轨道情形下的星下点圆形编队设计方法。由于参考轨道为大偏心率椭圆轨道时不存在圆形星下点队形,只讨论了参考轨道为小偏心率椭圆的情形。与对圆参考轨道的C-W方程初始条件进行修正的方法相比,该方法有更高的设计精度。最后使用脉冲推力模型求解了椭圆参考轨道编队的能量最省队形重构的轨迹规划问题。结果表明,遗传算法可以很好地应用于小偏心率参考轨道编队的队形和重构轨迹设计中。

Genetic algorithm for the design of satellite formations with near-circular reference orbits

Spacecraft formation designs with an elliptical reference orbit are much more difficult than with a circular reference orbit,with the initial elliptical orbit parameters sometimes very difficult to determine.This paper describes formations based on Lawden's equations and utilizing a genetic algorithm to design a ground track circular formation with three followers in a small eccentricity reference orbit.This method provides better accuracy than approaches that modify the initial conditions of the C-W equations for a circular reference orbit. The algorithm was also used to design fuel-optimal impulse maneuver formation reconfiguration trajectories.The results show that the genetic algorithm can efficiently design near-circular reference orbit formations.