Positioning system for Baikal-GVD
V. A. Allakhverdyan, A. D. Avrorin, A. V. Avrorin, V. M. Aynutdinov,, R. Bannasch, Z. Barda\v{c}ov\'a, I. A. Belolaptikov, I. V. Borina, V. B., Brudanin, N. M. Budnev, V. Y. Dik, G. V. Domogatsky, A. A. Doroshenko, R., Dvornick\'y, A. N. Dyachok, Zh.-A. M. Dzhilkibaev
TL;DR
The paper discusses the development and upgrade of an acoustic positioning system for the Baikal-GVD neutrino telescope, enabling precise localization of photomultiplier housings in Lake Baikal despite water currents.
Contribution
It presents the implementation and recent improvements of an acoustic trilateration system for accurate positioning in a large underwater neutrino detector.
Findings
Successful deployment of the acoustic positioning network
Enhanced accuracy with the upgraded polling algorithm
Reliable real-time localization of detector components
Abstract
Baikal-GVD is a kilometer scale neutrino telescope currently under construction in Lake Baikal. Due to water currents in Lake Baikal, individual photomultiplier housings are mobile and can drift away from their initial position. In order to accurately determine the coordinates of the photomultipliers, the telescope is equipped with an acoustic positioning system. The system consists of a network of acoustic modems, installed along the telescope strings and uses acoustic trilateration to determine the coordinates of individual modems. This contribution discusses the current state of the positioning in Baikal-GVD, including the recent upgrade to the acoustic modem polling algorithm.
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