Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Positioning system for Baikal-GVD   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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The categories of this paper are: cs
19
The categories of this paper are: eess
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
20
The categories of this paper are: acc-phys
9
The categories of this paper are: nlin
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
4
The categories of this paper are: cond-mat