Definition of Orbital Telescope Orientation on the Basis of On-Board Measuring Data Processing

Quality of the information received by the systems of the Earth remote sensing depends sufficiently on the evaluation precision of the orbital telescope angular attitude. Stellar sensors are at that principal measuring instruments. Precise definition of mutual orientation of the coordinate systems connected with optoelectronic devices and stellar sensors is needed for highly accurate gridding of space photographs. On-board information processing algorithm elaborated to compensate alignment errors and temperature instability, is proposed. It allows to obtain uniformly in three axes precise orientation of the telescope, as well as to carry out subsequent calibration consisting in calculation of adjusted values of the stellar sensors mutual orientation on the apparatus that would support the error values on a minimal possible level. Navigation and operational data have to be taken into account in order to increase accuracy of binding the object to the earth location.

References

[1] Zavarzin V.I., Li A.V. Evaluation method of exterior orientation elements for remote sensing optoelectronic devices operational coordinate referencing pictures. Jelektr. nauchno-tehn. Izd. "Inzhenernyj zhurnal: nauka i imovacii" MGTU im. Baumana [El. Sc.-Techn. Publ. "Eng. J.: Science and Innovation" of Bauman MSTU], 2013 iss. 9. http://engjournal.ru/articles/908/html/index.html. С. 1-13.

[2] Bessonov R.V., Dyatlov S.A. Overview of stellar spacecraft orientation sensors Sb. Tr. Vserossiysk. Nauch.-tekhn. Konf. "Sovremennye problemy orientatsii i navigatsii kosmicheskikh apparatov" [Proc. All-Russ. Conf. "Modern problems of spacecraft orientation and navigation"], 2008, p. 11 (in Russ.).

[3] Avanesov G.A., Bessonov R.V., Dyatlov S.A., Kurkina A.N., Sazonov V.V. Algorithms for co-processing of the measurement data of stellar coordinators and MEMS angular rate sensors. Sb. Tr. Vtoroy Vserossiysk. Nauch.-tekhn. Konf. "Sovremennye problemy orientatsii i navigatsii kosmicheskikh apparatov" [Proc. 2nd All-Russ. Conf. " Modern problems of spacecraft orientation and navigation"], 2011, p. 36 (in Russ.).

[4] Fedoseev V.I., Kolosov M.P. Optiko-elektronnye pribory orientatsii i navigatsii kosmicheskikh apparatov [Optoelectronic devices for spacecraft orientation and navigation: Tutorial]. Moscow, Logos Publ., 2007. 248 p.

[5] Amosov A.A., Dubinskiy Yu.A., Kopchenova N.P. Vychislitel’nye metody dlya inzhenerov [Computational Methods for Engineers]. Moscow, Vyssh. shk. Publ., 1994. 544 p.

[6] Somov E.I., Butyrin S.A. Refinement of space telescope orientation based on a posteriori onboard measurement information processing. Izv. Samarskogo nauch. tsentra RAN [Bull. of Samara Research Center, Russian Academy of Sciences], 2008, vol. 10, no. 3, pp. 790-798 (in Russ.).

[7] Lobanov A.N. Fotogrammetriya [Photogrammetry]. Moscow, Nedra Publ., 1984, 552 p.