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MiniSLR: A fully automated miniature satellite laser ranging ground station

机译:MiniSLR:一个全自动的微型卫星激光测距地面站

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Satellite Laser Ranging (SLR) has evolved from a geodesy tool to a widely used mission support system. Currently, about 80 satellite missions depend on continuous laser ranging data to derive exact position information, among them several Earth observation and many navigation satellites. Even more satellites have used SLR measurements in their early orbit phase to calibrate or verify their on-board navigation. In the future, the demand for laser ranging measurements may rise further, as more and more operators of small satellites, or even the proposed mega-constellations, realize the potential of this technique for obtaining centimctre-precise orbit information during and even after the mission. On board, only a small and light-weight retroreflector is required. On the ground, a world-wide network of around forty stations is available for tracking (International Laser Ranging Service, ILRS). However, many current ILRS stations are at their limit in terms of number of tracked satellites. Furthermore, the world-wide coverage is rather uneven, with many productive stations in Europe and Asia, only a few in Africa and the Americas and none at very high latitudes (north or south). A few new stations are under construction, more are being planned around the world. The German Aerospace Center is currently developing a new, small and inexpensive SLR system that may be very well suited for the further expansion of the laser ranging network. The whole system is housed in a 2m x 2m x 1.5m box, which is fully sealed and weather proof. It contains not only the mount with transmitter and receiver telescope and the laser, but also all data acquisition and experiment control systems. Our own control software, which is already used in two other SLR systems, will be used to operate the system completely autonomously. Using an infrared laser at low pulse energies avoids problems with aircraft safety. Compared to current SLR stations, which often occupy a whole observatory building and
机译:卫星激光测距(SLR)已经从大地测量工具演变为广泛使用的任务支持系统。目前,大约80个卫星任务依赖于连续激光测距数据来导出精确的位置信息,其中包括几个地球观察和许多导航卫星。甚至更多卫星在其早期轨道阶段使用了SLR测量以校准或验证其在板载导航。在未来,激光测量的需求可能进一步上升,因为越来越多的小卫星操作者,甚至是所提出的大型星座,实现了这种技术的潜力,以期间甚至在使命之后甚至甚至在任务之后获得厘米精确的轨道信息。在船上,只需要一个小而轻量级的回转器。在地面上,围绕四十站的全球网络可用于跟踪(国际激光测距服务,ILRS)。然而,许多当前的ILRS站在跟踪卫星的数量方面处于限制。此外,全世界的覆盖范围相当不均匀,欧洲和亚洲的许多生产力站,只有非洲和美洲的少数人,没有高纬度(北或南部)。一些新的车站正在建设中,在世界各地正在建设中。德国航空航天中心目前正在开发一种新的小而廉价的单反系统,非常适合激光测距网络的进一步扩展。整个系统安装在2米x 2米x 1.5米的盒子里,这是完全密封的和防风雨。它不仅载有发射器和接收器望远镜和激光器的安装,还包含所有数据采集和实验控制系统。我们自己的控制软件已在另外两种单反系统中使用,将用于完全自主地操作系统。在低脉冲能量下使用红外激光器避免了飞机安全的问题。与当前的单反站相比,这通常占据整个天文台建筑物和

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