ON THE PROBLEM OF CHOOSING A METHOD FOR ESTIMATING THE DRIFT CHARACTERISTICS OF WAVE SOLID-STATE GYROSCOPES GE 006 BASED ON EXPERIMENTAL CONFIRMATION 

Alexey S. Novoselov, General director, Research Institute physical measurements (8/10 Volodarskogo street, Penza, Russia), E-mail: info@niifi.ru
Sergey A. Moskalev, Candidate of technical sciences, deputy general director for development, Research Institute physical measurements (8/10 Volodarskogo street, Penza, Russia), E-mail: moskalev_sa@niifi.ru
Antonina A. Papko, Doctor of technical sciences, chief researcher, Research Institute physical measurements (8/10 Volodarskogo street, Penza, Russia), E-mail: info@niifi.ru
Alexey V. Pospelov, Chief specialist, Research Institute physical measurements (8/10 Volodarskogo street, Penza, Russia), E-mail: inercial@niifi.ru
Nikita V. Nedopekin, Head of department, Research Institute physical measurements (8/10 Volodarskogo street, Penza, Russia), E-mail: inercial@niifi.ru
Oksana N. Luzgina, Leading design engineer, Research Institute physical measurements (8/10 Volodarskogo street, Penza, Russia), E-mail: inercial@niifi.ru 

621.382.049.77 

10.21685/2307-4205-2021-1-6 

Background. The experience of research and development of wave solid-state gyroscopes (WGG) in the Russian Federation in comparison with similar foreign experience does not differ in a variety of techniques, among which the main place is occupied by the solution of the problems of mechanical balancing of resonators, which has proven to be an unproductive and unpredictable procedure. Along with this, it is a well-known fact that the modern HHG is controlled by four systems of automatic control of vibration energy, compensation of angular velocity, quadrature and phase. A generalized criterion for assessing the required quality of operation of these systems is the achievement of the established values of the drift characteristics of the HTG. As a rule, the terms of reference for their development set the required values of the random walk of zero σARW [° / √h] and zero stability b [° / h] without reference to estimation methods, despite the fact that σARW and b are included only in the nomenclature parameters estimated by Allan variations.
Materials and methods. The Allan variation method is recognized by its developer [1] as an alternative to the well-known methods of classical analysis of variance, which have certain limitations in assessing drifts. Along with this, when VTG GE 006 entered the market, it was necessary to face the skeptical attitude of the consumer towards the Allan method without specifying any compelling reasons for such distrust.
Results and conclusions. For this reason, the purpose of this article is to justify the choice of the method for assessing the drift characteristics of the HTG GE 006 using examples of a comprehensive analysis of samples obtained in long and short runs using two drift models – Allan variation and classical analysis of variance. 

wave solid-state gyroscope, Allan variation method, non-stationary process, noise, spectra, random walk of zero, zero offsets