桑迪亚国家实验室正在发展一种先进的激光跟踪系统,打算用来跟踪在短距离内运行速度高于22000公里/小时的试验飞行器。在过去十五年中,该实验室一直在用激光跟踪火箭和试验飞行器。因为同雷达跟踪器相比,激光跟踪系统有更高的精度和较小的地面背景的干扰。事实上,过去常常需花费几周时间对高速摄影胶片进行冗长的逐张测量的摄影技术现已被只需几秒钟的实验数据所代替。 Sandia National Laboratory is developing an advanced laser tracking system intended to track test aircraft operating at speeds above 22,000 km / h over short distances. For the past fifteen years, the lab has been tracking launchers and test aircraft with lasers. Because laser tracking systems have higher accuracy and smaller ground background interference than radar trackers. In fact, photographic techniques that used to take lengthy, one-by-one measurements of high-speed photographic film, which used to take weeks, have now been replaced by experimental data that takes only a few seconds.