PETRUSHAK, V. 2024. APPLICATION OF THE DOUBLE MATCH METHOD FOR DETERMINING THE CARRIER FREQUENCY OF HIDDEN INFORMATION TRANSMISSION SYSTEMS. Herald of Khmelnytskyi National University. Technical sciences. 341, 5 (Oct. 2024), 360–364. DOI:https://doi.org/10.31891/2307-5732-2024-341-5-53.