An attitude determination and control system for small satellites

dc.contributor.advisorFowler, Wallace T.en
dc.contributor.advisorLightsey, E. Glennen
dc.creatorTam, Margaret Hoi Tingen
dc.creator.orcid0000-0002-7636-3233en
dc.date.accessioned2015-10-13T19:03:21Zen
dc.date.accessioned2018-01-22T22:28:26Z
dc.date.available2015-10-13T19:03:21Zen
dc.date.available2018-01-22T22:28:26Z
dc.date.issued2015-05en
dc.date.submittedMay 2015en
dc.date.updated2015-10-13T19:03:21Zen
dc.descriptiontexten
dc.description.abstractA flexible, robust attitude determination and control (ADC) system is presented for small satellite platforms. Using commercial-off-the-shelf sensors, reaction wheels, and magnetorquers which fit within the 3U CubeSat form factor, the system delivers arc-minute pointing precision. The ADC system includes a multiplicative extended Kalman filter for attitude determination and a slew rate controller that acquires a view of the Sun for navigation purposes. A pointing system is developed that includes a choice of two pointing controllers -- a proportional derivative controller and a nonlinear sliding mode controller. This system can reorient the spacecraft to satisfy a variety of mission objectives, but it does not enforce attitude constraints. A constrained attitude guidance system that can enforce an arbitrary set of attitude constraints is then proposed as an improvement upon the unconstrained pointing system. The momentum stored by the reaction wheels is managed using magnetorquers to prevent wheel saturation. The system was thoroughly tested in realistic software- and hardware-in-the-loop simulations that included environmental disturbances, parameter uncertainty, actuator dynamics, and sensor bias and noise.en
dc.description.departmentAerospace Engineeringen
dc.format.mimetypeapplication/pdfen
dc.identifierdoi:10.15781/T25311en
dc.identifier.urihttp://hdl.handle.net/2152/31715en
dc.language.isoenen
dc.subjectAttitudeen
dc.subjectDeterminationen
dc.subjectControlen
dc.subjectEstimationen
dc.subjectCubeSaten
dc.subjectSatelliteen
dc.subjectADCen
dc.subjectGuidanceen
dc.subjectConvex optimizationen
dc.subjectConstrained attitude guidanceen
dc.subjectAttitude constrainten
dc.subjectTexas Spacecraft Laboratoryen
dc.subjectTSLen
dc.subjectBevo-2en
dc.subjectARMADILLOen
dc.titleAn attitude determination and control system for small satellitesen
dc.typeThesisen

Files