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首页> 外文期刊>Journal of guidance, control, and dynamics >Autonomous Formation Keeping of Geostationary Satellites with Regional Navigation Satellites and Dynamics
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Autonomous Formation Keeping of Geostationary Satellites with Regional Navigation Satellites and Dynamics

机译：具有区域导航卫星和动力学的对地静止卫星的自动编队保持

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摘要

In this paper, the reduced dynamic autonomous formation control of geostationary-Earth-orbit satellites using Indian Regional Navigation Satellite System observables is presented. Generally, the navigation signal is used to determine the position, velocity, and time kinematically. The kinematic formulation, however, is geometric and vulnerable to data outage and cycle slip. Weak geometry of navigation satellites causes high dilution of precision. In this situation, dynamics can provide the estimates with little degradation in accuracy. This requires combining Indian Regional Navigation Satellite System observables with orbital dynamics of the geostationary-Earth-orbit satellites in an extended Kaiman filter setup, resulting in improved position and velocity estimates. Moreover, solar radiation pressure coefficient, ephemeris error, and any other unaccounted minute forces are estimated through an empirical acceleration model, along with receiver clock bias and drift, in a reduced dynamics formulation. Furthermore, it is demonstrated that these position and velocity estimates permit autonomous station and formation keeping of geostationary-Earth-orbit satellites. The classical technique using the sun and moon and solar radiation perturbing accelerations to advantage is used to control eccentricity and inclination vectors of each satellite in the formation. The formation-keeping control maneuvers are performed autonomously, whenever an individual satellite's eccentricity or inclination limit is exceeded.
机译：本文提出了利用印度区域导航卫星系统可观测值对地球静止轨道卫星进行简化的动态自主编队控制。通常，导航信号用于通过运动学确定位置，速度和时间。但是，运动学公式是几何的，容易受到数据中断和周期滑移的影响。导航卫星的几何形状较弱会导致精度降低。在这种情况下，动力学可以为估计提供几乎不降低的准确性。这就需要在扩展的Kaiman滤波器设置中将印度区域导航卫星系统的可观测值与对地静止地球轨道卫星的轨道动力学相结合，从而改善位置和速度估计。而且，太阳辐射压力系数，星历误差和任何其他未说明的分钟力都是通过经验加速度模型以及接收器时钟偏差和漂移以简化的动力学公式估算的。此外，证明了这些位置和速度估计值可以使地球静止卫星的自主站和编队得以保持。利用太阳和月亮以及太阳辐射扰动加速度的经典技术来控制地层中每个卫星的偏心率和倾斜向量。每当超过单个卫星的偏心率或倾斜度限制时，编队保持控制操作便自动执行。

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