Discrete Search Optimization for Real-Time Path Planning in Satellites

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dc.contributor.advisorHeinkenschloss, Matthias
dc.contributor.committeeMemberSymes, William W.
dc.contributor.committeeMemberRiviere, Beatrice M.
dc.contributor.committeeMemberBedrossian, Nazareth
dc.creatorMays, Millie
dc.date.accessioned2012-09-06T00:07:01Z
dc.date.accessioned2012-09-06T00:07:11Z
dc.date.available2012-09-06T00:07:01Z
dc.date.available2012-09-06T00:07:11Z
dc.date.created2012-05
dc.date.issued2012-09-05
dc.date.submittedMay 2012
dc.date.updated2012-09-06T00:07:12Z
dc.description.abstractThis study develops a discrete search-based optimization method for path planning in a highly nonlinear dynamical system. The method enables real-time trajectory improvement and singular configuration avoidance in satellite rotation using Control Moment Gyroscopes. By streamlining a legacy optimization method and combining it with a local singularity management scheme, this optimization method reduces the computational burden and advances the capability of satellites to make autonomous look-ahead decisions in real-time. Current optimization methods plan offline before uploading to the satellite and experience high sensitivity to disturbances. Local methods confer autonomy to the satellite but use only blind decision-making to avoid singularities. This thesis' method seeks near-optimal trajectories which balance between the optimal trajectories found using computationally intensive offline solvers and the minimal computational burden of non-optimal local solvers. The new method enables autonomous guidance capability for satellites using discretization and stage division to minimize the computational burden of real-time optimization.
dc.format.mimetypeapplication/pdf
dc.identifier.citationMays, Millie. "Discrete Search Optimization for Real-Time Path Planning in Satellites." (2012) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/64637">https://hdl.handle.net/1911/64637</a>.
dc.identifier.slug123456789/ETD-2012-05-87
dc.identifier.urihttps://hdl.handle.net/1911/64637
dc.language.isoeng
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.subjectPath planning
dc.subjectSatellites
dc.subjectReal time optimization
dc.subjectOptimal control
dc.subjectSingularity avoidance
dc.subjectControl moment gyroscopes
dc.titleDiscrete Search Optimization for Real-Time Path Planning in Satellites
dc.typeThesis
dc.type.materialText
thesis.degree.departmentComputational and Applied Mathematics
thesis.degree.disciplineEngineering
thesis.degree.grantorRice University
thesis.degree.levelMasters
thesis.degree.nameMaster of Arts
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