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NASA NTRS · 20220018256

Navigation Doppler Lidar Signal Processing Architecture and Algorithms

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Doppler lidar Navigation doppler lidar Precision navigation Precision landing Real-time signal processing Fourier transformation FFT Command and data handling

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Glenn Hines. Navigation Doppler Lidar Signal Processing Architecture and Algorithms. https://ntrs.nasa.gov/citations/20220018256

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Doppler Lidar for Precision Landing on Planetary Bodies with and without Atmosphere

Global Positioning System (GPS) is commonly used in terrestrial navigation for vehicle position and velocity knowledge. In the absence of a GPS signal, past landing missions to planetary bodies primarily relied on radar to provide the necessary data to execute descent and landing maneuvers. We have developed a coherent Doppler lidar, called Navigation Doppler Lidar (NDL), that offers several critical advantages com-pared to radar, including significantly higher precision with reduced size, mass, and power.

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