Later this month, NASA’s commercial lunar delivery services provider Intuitive Machines will launch its Nova-C lunar lander carrying several NASA science and
Navigation Doppler Lidar is a guidance system that uses laser pulses to precisely measure velocity and distance. NASA will demonstrate NDL’s capabilities in the lunar environment during the IM-1 mission. technology payloads, including the Navigation Doppler Lidar . This, developed by NASA’s Langley Research Center in Hampton, Virginia, under the agency’s Space Technology Mission Directorate , can potentially revolutionize landing spacecraft on extraterrestrial worlds.
The NDL story started almost 20 years ago when Dr. Farzin Amzajerdian, NDL project manager at NASA Langley, made a breakthrough and successfully found a precise way to land rovers on Mars. In the late 1990s and early 2000s, several attempts at landing rovers on the surface of Mars were met with several significant challenges.
Radio waves also couldn’t measure velocity and range independently of one another, which is important, according to Aram Gragossian, electro-optics lead for NDL at NASA Langley, who joined the team about six years ago. Lidar offered several advantages over radar, notably the fact that a laser transmits a pencil beam of light that can give a more precise and accurate measurement.
Hines credits the various NASA personnel who have continued to advocate for NDL. “In almost everything in life, you’ve got to have a champion,” Hines said, “somebody in your corner saying, ‘Look, what you’re doing is good. This has credibility.’ ”
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