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Robust Measurement Planning for Satellite Relative Navigation

机译:卫星相对导航的鲁棒测量计划

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摘要

This paper introduces a robust measurement scheduling strategy forlinear time-varying systems with zero-mean white process and measure-ment noises. Relying on previous works, the measurement strategy con-sists of choosing the timing and the measurement noise intensity prolesuch as to minimize under an integral constraint an upper-bound of theestimation error covariance matrix in a Kalman lter. The measurementstrategy is applied against a process noise intensity profile designed tomaximize that upper bound under a similar integral constraint. Theproblem is solved iteratively and is presented here for the case of a scalarprocess noise intensity. The result is a sequence of (few) epoch times atwhich measurements should be acquired, along with the optimized accu-racy levels, and a sequence of (few) epoch times and intensities, at whichthe process noise should be active. The proposed planning is valuablein providing guaranteed performances under uncertainty on the processnoise intensity. The proposed robust measurement planning method-ology is applied to a simple harmonic system for validation. It is alsoapplied to a relative navigation problem for two low Earth orbit satellitesying in formation and equipped with laser ranging capabilities.
机译:本文介绍了一种鲁棒的测量调度策略 零均值白色过程和测量的线性时变系统 精神噪音。依靠先前的工作,测量策略可以 可以选择时序和测量噪声强度曲线 例如在积分约束下将 卡尔曼滤波器中的估计误差协方差矩阵。测量 该策略适用于针对以下目的而设计的过程噪声强度配置文件: 在相似的积分约束下最大化该上限。这 迭代地解决问题,并在此处针对标量问题进行介绍 过程噪声强度。结果是几个(几个)时代时间的序列 应该获取哪些测量值以及优化的精度 文明水平以及一系列(少数)时期和强度, 过程噪声应处于活动状态。拟议的计划很有价值 在过程不确定性的情况下提供有保证的性能 噪声强度。提出的稳健的测量计划方法- 该学应用于简单的谐波系统进行验证。也是 应用于两个低地球轨道卫星的相对导航问题 形成并配备了激光测距功能。

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