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美国国家航空航天局(NASA)即将在加利福尼亚州莫哈韦沙漠试验激光制导导航传感器“导航多普勒激光雷达”(NDL)。该技术未来将帮助深空探测器更安全、精确地着陆在地外天体表面。NDL是NASA“自主着陆技术联合协调”(COBALT)有效载荷的一部分,由兰利研究中心、约翰逊航天中心、喷气推进实验室共同研制,将搭载在马斯滕空间系统公司研发的火箭助推、垂直起飞垂直着陆(VTVL)平台(名为Xodiac)上进行飞行试验。NDL的主要结构是一个由光纤与3个透镜连接的小型电子箱,具有超精确的速度与距离测量能力,激光束经由地面反射回来,帮助传
NASA is testing a laser-guided navigation sensor “Navigation Doppler Lidar” (NDL) in the Mojave Desert, California. The technology will help make deep space exploration more secure and accurately land on extraterrestrial objects. The NDL, part of NASA’s COBALT payload, was jointly developed by Langley Research Center, Johnson Space Center and Jet Propulsion Laboratory and will be powered by Rocket Heli, developed by the Marsten Space Systems Company Push, VTOL platform (named Xodiac) for flight test. The main structure of the NDL is a small electronic box connected by optical fiber and 3 lenses, with ultra-accurate speed and distance measurement capability, the laser beam reflected back through the ground to help pass