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Proceedings Paper

Functional structure of the cryogenic sensor and mathematical models of signal
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Paper Abstract

Today, remote sensing is one of the fastest growing technologies around. It is a multibillion-dollar industry and remote thematic images are routinely used in an increasing number of fields. The solution of many important practical problems depends on a large-scale usage of the measurement systems and underlying physical principles. These problems include monitoring of the natural resources based on the analysis of the gravity anomalies, studying of global geodynamic processes and evolution of the Earth gravity field, analysis of movement of the Earth poles, etc. In spite of the existence of the considerable achievements in the area of gravity measurements, some important aspects of the problem have not been solved yet due to the absence of appropriate sensitive elements (SE) and sensors with the relevant parameters. The author of the report has proposed a functional structure of the cryogenic-optical sensor based on magnetic bearing phenomenon. A functional structure of the sensitive element consists of a controlled magnetic suspension, a high-precision optical system for registration of levitating body mechanical coordinates, and a signal processing toolbox. This toolbox contents the adaptive compensator, digital filters, inverse mathematical models of the SE, the Kalman filter, the control system, the dynamical analysis system, the mathematical modeling system, the simulation system, the information statistical system, the wavelet analysis system, a neural network, and data base. Mathematical models of the signal and noise are conventionally based on the principles of nonlinear electro-mechanics. Such models explains most basic features of the superconducting sensitive element. We will also discuss a new theoretical framework for adaptive estimation of gravitation perturbations and compare program models to conventional robust estimation models.

Paper Details

Date Published: 15 October 2003
PDF: 11 pages
Proc. SPIE 5172, Cryogenic Optical Systems and Instruments X, (15 October 2003); doi: 10.1117/12.505072
Show Author Affiliations
Vitaliy Alexeevich Yatsenko, Space Research Institute (Ukraine)

Published in SPIE Proceedings Vol. 5172:
Cryogenic Optical Systems and Instruments X
James B. Heaney; Lawrence G. Burriesci, Editor(s)

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