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Neighboring Optimum Feedback Control Law for Earth-Orbiting Formation-Flying Spacecraft

机译:地球轨道编队飞行航天器的相邻最佳反馈控制律

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摘要

This paper develops a feedback control law that guarantees neighboring fuel-optimality of the reconfiguration of a formation of Earth-orbiting formation-flying spacecraft. It aims for the case in which a specific formation is to be achieved at a specific true anomaly. It guarantees neighboring fuel-optimality of such a reconfiguration maneuver, assuming that the formation evolves in the vicinity of an uncontrolled reference trajectory. It is in the semi-analytic form, as only one time-varying gain matrix needs to be computed before the maneuver. It allows a fuel consumption/ formation accuracy tradeoff with the selection of only one scalar gain. Simulations compare the performance of this controller with the linear-quadratic regulator and the mean prbit elements controller in the context of a 1 km size formation reconfiguration. Simulations show that this neighboring optimum controller can perform the maneuver with better accuracy while spending as much or less propellant than the other controllers.
机译:本文提出了一种反馈控制法则,该法则可保证对地轨道飞行的编队飞行航天器的构型进行重构时,相邻燃料的最优性。它的目的是要在特定的真实异常情况下实现特定的形成。假设地层在不受控制的参考轨迹附近发展,它可确保这种重新配置机动的邻近燃料最优性。它采用半解析形式,因为在执行操作之前仅需要计算一个随时间变化的增益矩阵。它仅选择一个标量增益就可以实现燃料消耗/地层精度的折衷。仿真比较了在1 km大小编队重新配置的情况下,该控制器与线性二次调节器和平均prbit元素控制器的性能。仿真表明,与其他控制器相比,该相邻的最佳控制器可以以更高的精度执行机动,同时消耗或多或少的推进剂。

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  • 来源
    《Journal of guidance, control, and dynamics》 |2009年第1期|290-299|共10页
  • 作者单位

    Universite de Sherbrooke, Sherbrooke, Quebec J1K 2R1, Canada Department of Electrical Engineering, 2500 Boulevard Universite;

    Universite de Sherbrooke, Sherbrooke, Quebec J1K 2R1, Canada Department of Electrical Engineering, 2500 Boulevard Universite;

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