Use of Cartesian-Coordinate Calibration for Satellite Relative-Motion Control

Andrew J. Sinclair; Ryan E. Sherrill; T. Alan Lovell

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Use of Cartesian-Coordinate Calibration for Satellite Relative-Motion Control

机译：直角坐标校准在卫星相对运动控制中的应用

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Orbital-element differences can be used to calculate a calibrated Cartesian state that provides a more accurate linear approximation of the nonlinear motion. Relative-motion controllers are often designed using the linearized Cartesian dynamics. This suggests the approach to replace feedback of the true state with feedback of the calibrated state when implementing the controller in the presence of the nonlinear dynamics. The results presented here illustrated this approach for both continuous-thrust control and impulsive maneuvers, and show that calibrated-state control can provide significant performance improvement, reduction in required control usage, and expansion of the linear-control domain of validity.

机译：轨道元素差可用于计算校准的笛卡尔状态，该状态提供了非线性运动的更精确的线性近似。相对运动控制器通常使用线性笛卡尔动力学来设计。这建议了在存在非线性动力学的情况下实施控制器时，用校准状态的反馈代替真实状态的反馈的方法。此处给出的结果说明了这种方法，适用于连续推力控制和脉冲操纵，并且表明标定状态控制可以显着改善性能，减少所需控制使用量，并扩展线性控制有效性范围。

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《Journal of guidance, control, and dynamics》 |2015年第9期|1842-1847|共6页
作者
Andrew J. Sinclair; Ryan E. Sherrill; T. Alan Lovell;
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Auburn University, Auburn, Alabama 36849;

Engility Corporation, Eglin Air Force Base, Florida 32542;

Space Vehicles Directorate, Kirtland Air Force Base, New Mexico 87117;

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Use of Cartesian-Coordinate Calibration for Satellite Relative-Motion Control

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