Stability of systematic delays of code GNSS signals in receiving equipment

A.A. Karaush

FSUE «VNIIFTRI», Mendeleevo, Moscow region, Russia

Al’manac of Modern Metrology № 4 (28) 2021, pages 125–133

Annotation. The consistency of the signal delay value in the receiving path of the GNSS equipment is crucial for the tasks of comparing time scales over the GNSS channel. It is currently assumed that after calibration the delays keep constant value within the limits 2 ns or less. It is also believed that for two GLONASS satellites emitting a signal at the same letter frequency, these delays are the same. The aim of the study is a quantitative evaluation of the instability of internal delays in receivers specially designed for time and frequency comparisons.

Key words: coded GNSS signals, instability of internal delays in receivers.

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