S.V. Goncharov – Assistent, Siberian Federal University (Krasnoyarsk); Design Engineer, JSC «SPE «Radiosviaz» (Krasnoyarsk) E-mail:sergeishk@gmail.com

K.N. Chepa – Post-graduate Student, Siberian Federal University (Krasnoyarsk); Design Engineer, JSC «SPE «Radiosviaz» (Krasnoyarsk)

A.P. Kudrevich – Senior Lecturer, Siberian Federal University (Krasnoyarsk); Design Engineer, JSC «SPE «Radiosviaz» (Krasnoyarsk)

A.V. Yachin – Assistent, Siberian Federal University (Krasnoyarsk); Design Engineer, JSC «SPE «Radiosviaz» (Krasnoyarsk)

A.V. Grebennikov – Ph.D. (Eng.), Head of Department «Radioelectronic equipment of information systems»,

Variations of the phase and amplitude characteristics of analog tracts as a function of temperature are estimated. The temperature dependence of the systematic errors in measuring the phase difference of the navigation signals has been studied in detail. A number of experiments have been carriedout to improve the accuracy of determining the phase difference.

1. Tomas R. Raznovidnosti arhitektur API i razrabotka programmnogo obespechenija na osnove setevyh struktur. Universitet Kalifornii. Irvin. 2000.
2. Global'naja sputnikovaja navigacionnaja sistema GLONASS / Pod red. V.N. Harisova, A.I. Perova, V.A. Boldina. M.: IPRZhR. 1999.