Reducing the pointing error of a space surveillance system for monitoring man-made objects
I.V. Znamenskii1, A.A. Tikhomirov2, A.T. Tungushpaev1
1Joint-stock Company "Research-and-Production Corporation "Precision Systems and Instruments", Moscow, Russia
2Institute of Monitoring of Climatic and Ecological Systems of the Siberian Branch of the Russian Academy of Sciences, Tomsk, Russia
Keywords: optoelectronic system, rotary support device, spline approximation, optical sensor, pixel, point spread function, pointing error
Abstract
To monitor objects of man-made origin, the issues of reducing the errors of pointing an optoelectronic system (OES) of a space survey at an object, which are associated with the influence of mechanical factors on the design of a pivoting device, are considered. To reduce these errors, the calibration of the optical sensors of the OES by stars is used. Mathematical methods of processing measurements are used to increase their accuracy, or interpolation methods are used to determine intermediate values between measured calibration points. The work uses spline approximation to find corrections to the readings of optical sensors of the azimuthal and elevation axes.
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