NASA NTRS · 20230015265
High Precision Relative Position Sensing System for Formation Flying Spacecraft
Abstract
Three candidate sensors under development - Longitudinal Sensing: Precision Laser Ranger (PLR) - Periodic laser pulses are reflected off a distant target. - Heterodyne analysis of returning pulses enables high resolution ranging. - Transverse Sensing = Transverse Alignment Sensor (TAS) - Laser beam is focused onto distant laser position sensor. - Analog sensor provides coordinates of spot on sensor. - 3D PLR: Alternative approach to transverse sensing: - Combine PLR with 3D target covered with retroreflective material. - 6 degree of freedom sensing using PLR. - May eliminate need for TAS.
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Anne-Marie Novo-Gradac, L. Linarez, G. Yang, P. Calhoun, D. Rabin, Sam Kowing, Jon Hille. High Precision Relative Position Sensing System for Formation Flying Spacecraft. https://ntrs.nasa.gov/citations/20230015265
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