JamSys: Coverage Optimization of a Microphone Jamming System Based on Ultrasounds

With the development of digital devices, the recording process has become increasingly easier to conduct. However, the portability of the recording devices has also made recording difficult to monitor. If private conversations are illegally recorded, it will cause serious secret-leakage events. Ther...

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Main Authors: Hao Shen, Weiming Zhang, Han Fang, Zehua Ma, Nenghai Yu
Format: Article
Language:English
Published: IEEE 2019-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8719992/
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author Hao Shen
Weiming Zhang
Han Fang
Zehua Ma
Nenghai Yu
author_facet Hao Shen
Weiming Zhang
Han Fang
Zehua Ma
Nenghai Yu
author_sort Hao Shen
collection DOAJ
description With the development of digital devices, the recording process has become increasingly easier to conduct. However, the portability of the recording devices has also made recording difficult to monitor. If private conversations are illegally recorded, it will cause serious secret-leakage events. Therefore, it is imperative to prevent unauthorized recordings. Recent works have demonstrated that the nonlinearity effect of microphones can be leveraged to interfere with microphone recording using ultrasounds. However, an ultrasonic array has a limited jamming area. The design of an anti-recording system composed of multiple ultrasonic arrays remains to be addressed. In this paper, a jamming system, JamSys, is presented to prevent eavesdropping in a given region. We propose a new scheme composed of the angle coverage model and the modified harmony search algorithm (MHSA) to optimize the deployment of ultrasonic arrays, which achieves the maximum jamming area with the given number of arrays. In the simulation and experiments, three different optimization algorithms, the MHSA, the genetic algorithm (GA), and the regular coverage algorithm (RCA) are compared. The MHSA is demonstrated to provide the best results.
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spelling doaj.art-b7b6923c4e844437bcee6b5efc5357bf2022-12-21T21:26:44ZengIEEEIEEE Access2169-35362019-01-017674836749610.1109/ACCESS.2019.29182618719992JamSys: Coverage Optimization of a Microphone Jamming System Based on UltrasoundsHao Shen0Weiming Zhang1https://orcid.org/0000-0001-5576-6108Han Fang2Zehua Ma3Nenghai Yu4School of Information Science and Technology, University of Science and Technology of China, The Key Laboratory of Electromagnetic Space Information, Chinese Academy of Sciences, Hefei, ChinaSchool of Information Science and Technology, University of Science and Technology of China, The Key Laboratory of Electromagnetic Space Information, Chinese Academy of Sciences, Hefei, ChinaSchool of Information Science and Technology, University of Science and Technology of China, The Key Laboratory of Electromagnetic Space Information, Chinese Academy of Sciences, Hefei, ChinaSchool of Information Science and Technology, University of Science and Technology of China, The Key Laboratory of Electromagnetic Space Information, Chinese Academy of Sciences, Hefei, ChinaSchool of Information Science and Technology, University of Science and Technology of China, The Key Laboratory of Electromagnetic Space Information, Chinese Academy of Sciences, Hefei, ChinaWith the development of digital devices, the recording process has become increasingly easier to conduct. However, the portability of the recording devices has also made recording difficult to monitor. If private conversations are illegally recorded, it will cause serious secret-leakage events. Therefore, it is imperative to prevent unauthorized recordings. Recent works have demonstrated that the nonlinearity effect of microphones can be leveraged to interfere with microphone recording using ultrasounds. However, an ultrasonic array has a limited jamming area. The design of an anti-recording system composed of multiple ultrasonic arrays remains to be addressed. In this paper, a jamming system, JamSys, is presented to prevent eavesdropping in a given region. We propose a new scheme composed of the angle coverage model and the modified harmony search algorithm (MHSA) to optimize the deployment of ultrasonic arrays, which achieves the maximum jamming area with the given number of arrays. In the simulation and experiments, three different optimization algorithms, the MHSA, the genetic algorithm (GA), and the regular coverage algorithm (RCA) are compared. The MHSA is demonstrated to provide the best results.https://ieeexplore.ieee.org/document/8719992/Privacy protectionanti-recordingmicrophonesultrasoundsoptimization algorithms
spellingShingle Hao Shen
Weiming Zhang
Han Fang
Zehua Ma
Nenghai Yu
JamSys: Coverage Optimization of a Microphone Jamming System Based on Ultrasounds
IEEE Access
Privacy protection
anti-recording
microphones
ultrasounds
optimization algorithms
title JamSys: Coverage Optimization of a Microphone Jamming System Based on Ultrasounds
title_full JamSys: Coverage Optimization of a Microphone Jamming System Based on Ultrasounds
title_fullStr JamSys: Coverage Optimization of a Microphone Jamming System Based on Ultrasounds
title_full_unstemmed JamSys: Coverage Optimization of a Microphone Jamming System Based on Ultrasounds
title_short JamSys: Coverage Optimization of a Microphone Jamming System Based on Ultrasounds
title_sort jamsys coverage optimization of a microphone jamming system based on ultrasounds
topic Privacy protection
anti-recording
microphones
ultrasounds
optimization algorithms
url https://ieeexplore.ieee.org/document/8719992/
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AT hanfang jamsyscoverageoptimizationofamicrophonejammingsystembasedonultrasounds
AT zehuama jamsyscoverageoptimizationofamicrophonejammingsystembasedonultrasounds
AT nenghaiyu jamsyscoverageoptimizationofamicrophonejammingsystembasedonultrasounds