Matteo Gatti
Jitter Effects on Earth Observation Micro-Satellites.
Rel. Paolo Maggiore, Nicolò Roberto Benigno. Politecnico di Torino, Corso di laurea magistrale in Ingegneria Aerospaziale, 2024
Abstract
Line-of-Sight (LoS) jitter represents a multidisciplinary challenge to Earth Observation satellites hosting high-performance, vibration-sensitive optical sensor payloads with stringent pointing stability requirements. Micro-vibrations are one of the main factors contributing to platform jitter and can impact the reliability and precision of Earth imagery crucial for various applications. Typically, the all-encompassing jitter solutions for flagship-class observatories, which are generally bespoke, are highly customized mission-unique designs that hire extensive modeling, analysis, and test, which is costly and time consuming. The scenario for non-flagship missions that use “commercial class” small spacecraft is completely different. The ordinary CubeSats’ small dimensions, low-cost solutions and tight timings make jitter managing more arduous and engineering complex.
In this Thesis, an integrated methodology is described to achieve a complete LoS jitter analysis on a micro-satellite, considering all the technical areas involved
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