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3038 Hennepin Ave Minneapolis, MN
612-822-4611
Stochastic Orbit Prediction Using KAM Tori

Stochastic Orbit Prediction Using KAM Tori

Paperback

Astronomy & SpaceGeneral EducationGeneral Mathematics

ISBN10: 1288315902
ISBN13: 9781288315901
Publisher: Biblioscholar
Published: Nov 19 2012
Pages: 218
Weight: 0.69
Height: 0.46 Width: 6.14 Depth: 9.21
Language: English

Kolmogorov-Arnold-Moser (KAM) Theory states that a lightly perturbed, conservative, dynamical system will exhibit lasting quasi-periodic motion on an invariant torus. Its application to purely deterministic orbits has revealed exquisite accuracy limited only by machine precision. The theory is extended with new mathematical techniques for determining and predicting stochastic orbits for Earth satellite systems. The linearized equations of motion are developed and a least squares estimating environment is pioneered to fit observation data from the International Space Station to a phase space trajectory that exhibits drifting toroidal motion over a dense continuum of adjacent tori. The dynamics near the reference torus can be modeled with time-varying torus parameters that preserve both deterministic and stochastic effects. These parameters were shown to predict orbits for days into the future without tracking updates--a vast improvement over classical methods of orbit propagation that require routine updates.

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