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首页> 外文期刊>Celestial Mechanics and Dynamical Astronomy >Toroidal path filter for orbital conjunction screening
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Toroidal path filter for orbital conjunction screening

机译：用于轨道合点筛选的环形路径滤波器

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For satellite conjunction prediction containing many objects, timely processing can be a concern. Various filters are used to identify orbiting pairs that cannot come close enough over a prescribed time period to be considered hazardous. Such pairings can then be eliminated from further computation to quicken the overall processing time. One such filter is the orbit path filter (also known as the geometric pre-filter), designed to eliminate pairs of objects based on characteristics of orbital motion. The goal of this filter is to eliminate pairings where the distance (geometry) between their orbits remains above some user-defined threshold, irrespective of the actual locations of the satellites along their paths. Rather than using a single distance bound, this work presents a toroid approach, providing a measure of versatility by allowing the user to specify different in-plane and out-of-plane bounds for the path filter. The primary orbit is used to define a focus-centered elliptical ring torus with user-defined thresholds. An assessment is then made to determine if the secondary orbit can touch or penetrate this torus. The method detailed here can be used on coplanar, as well as non-coplanar, orbits.
机译：对于包含许多对象的卫星结点预测，及时处理可能是一个问题。各种过滤器用于识别在规定的时间内距离不够近而不能视为危险的轨道对。然后可以从进一步的计算中消除这种配对，以加快整体处理时间。一种这样的过滤器是轨道路径过滤器（也称为几何预过滤器），设计用于根据轨道运动的特性消除成对的物体。该过滤器的目的是消除成对的轨道之间的距离（几何形状）保持在某个用户定义的阈值以上的配对，而与卫星沿其路径的实际位置无关。这项工作没有使用单个距离范围，而是提出了一种环形方法，通过允许用户为路径过滤器指定不同的平面内和平面外边界来提供多功能性的度量。主轨道用于使用用户定义的阈值定义以焦点为中心的椭圆环形圆环。然后进行评估以确定次级轨道是否可以接触或穿透该圆环。此处详述的方法可以在共面和非共面轨道上使用。

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