Signal delay estimation of the measuring device ADC path 

S.Y. Burtsev, D.S. Pecheritsa

FSUE “VNIIFTRI”, Mendeleevo, Moscow region, Russia,

Al’manac of Modern Metrology № 4 (32) 2022, pages 52–58

Abstract. The measuring path of radio navigation equipment has a dependence of the signal transit time on the frequency of its carrier. To ensure the uniformity of radio navigation equipment measurements, reference test equipment is being developed. When carrying out work of the calibration of global navigation satellite systems signal simulators, special attention is paid to the dependence of the signal group delay time in the reference equipment path on the signal carrier frequency. The article discusses a method for estimating the signal group delay time in the path with an analog-to-digital converter of the reference test equipment of coordinate-time measuring instruments with traceability to the pulsed electrical voltage standard.

Keywords: calibration, simulator of global navigation systems signals, receiver, analog-to-digital converter.

Full texts of articles are available only in Russian in printed issues of the magazine.