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NASA NTRS · 20210002114

Lidar-based hazard avoidance for safe landing on Mars

Wolf, A.·Collier, J.·Klumpp, A.·Johnson, A. E.
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Abstract

This paper describes the algorithms and the models that comprise a scanning lidar-based hazard avoidance simulation including a terrain generator, a lidar model, hazard avoidance algorithms and powered landing guidance algorithms.

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hazarddetectionLIDARMarspoweredguidancesafelandingEDL

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Wolf, A., Collier, J., Klumpp, A., Johnson, A. E.. 2001-02-11. Lidar-based hazard avoidance for safe landing on Mars. https://ntrs.nasa.gov/citations/20210002114

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NASA NTRS2002

Descent-speed testing of a hazard detection system for safe landing on Mars

In a previous paper we described an approach for testing a prototype system designed to detect hazards during the terminal descent phase of a mission to Mars. The system under development at the Jet Propulsion Laboratory (JPL) utilizes a scanning laser radar and an inertial measurement unit to map the landing zone, identify hazards, and thenguide the vehicle to a safe landing site. The test approach consisted of a placing this system on a rocket sled, accelerating the sled to typical descent speeds, and mapping a simulated Martian terrain. The data would then be processed to identify hazards and locate a safe landing site. Since ref. 1 was written several such tests have been performed. In this paper we provide an update on the testing methodology and we present preliminary results from one of the tests.

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