Article

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Title

Space experiment for precision thermal stabilization of quantum frequency standards for navigation satellites

Authors

¹V.E. Chebotarev, ²V.A. Derevyanko, ²A.V. Makukha, ¹M.T. Bakirov

Organizations

¹JSC Academician M. F. Reshetnev Information Satellite Systems
Zheleznogorsk, Krasnoyarsk region, Russian Federation
²Institute of Computational Modelling SB RAS, FRC KSC SB RAS
Krasnoyarsk, Russian Federation

Abstract

The basis of space navigation systems are highly stable atomic frequency standards, which form a highly accurate satellite time scale and a highly stable frequency grid, providing output accuracy characteristics of space systems as a whole. To basis of the precision thermostabilization system is the following basic principles: ensuring the spatial heterogeneity of heat fluxes based on atomic frequency standards using hyperheat-conducting plates; organization of high precision controlled thermal effects of heaters; improving the accuracy of temperature measurement (absolute and relative) using the onboard temperature standard. The results of laboratory, ground-based and space experiments showed that the principle of precision thermostabilization works in terms of taking into account the deviation of temperature from a given one and taking into account the influence of instability of the on-board power supply, and the accuracy of thermostabilization was also ensured taking into account the angle of rotation of solar cells from 0,025 °С up to 0,04 °C (in the shadow areas of the orbit). In addition, the using of hyper-conductive plates improved spatial instability of the thermoplate 6 times. As a result, the developed measures make it possible to increase the accuracy of precision thermostabilization to 0,01 °C.

Keywords

space navigation systems, navigation satellite, atomic frequency standards, precision thermostabilization, hyper heat-conducting plate, space experiment

References

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For citing this article

Chebotarev V.E., Derevyanko V.A., Makukha A.V., Bakirov M.T. Space experiment for precision thermal stabilization of quantum frequency standards for navigation satellites // Spacecrafts & Technologies, 2018, vol. 2, no. 4, pp. 187-191. doi: 10.26732/2618-7957-2018-4-187-191

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