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- W2324906028 abstract "When landing on a planetary body, the knowledge of the Lander velocity relative to the surface is required in order to ensure a safe touchdown. A conventional Doppler radar can provide this measurement. However, it has been shown in previous studies that Lidar mappers, with their ability to view the landing area in three dimensions, are ideal sensors for hazard-avoidance landing. In order to minimize the power, mass and volume of on-board sensors, this paper proposes to use the Lidar data to estimate the Lander relative velocity. An innovative Lidar-based Pseudo-Doppler velocity determination algorithm is presented with the purpose of determining velocity in conditions of high relative velocity, condition in which techniques based on feature matching may fail because of the distortions created by the Lander motion. The techniques proposed here could estimate the velocity during and at the end of the parachute phase when landing on Mars. The algorithm is described and validated by simulation." @default.
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- W2324906028 date "2006-06-15" @default.
- W2324906028 modified "2023-10-18" @default.
- W2324906028 title "Pseudo-Doppler Velocity Navigation for Lidar-Based Planetary Exploration" @default.
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- W2324906028 doi "https://doi.org/10.2514/6.2006-6664" @default.
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