EXPERIMENTAL STUDIES OF THE STAND OF SIMULATION MODELING OF LASER MICROPHONE OPERATION FOR REMOVAL OF ACOUSTIC INFORMATION

Maksym Martseniuk, P. Skladannyi, V. Astapenya
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引用次数: 1

Abstract

He who possesses information owns the world. This statement is becoming more relevant every day. It is information that has become a tool for modern management and development. Therefore, the role of information technology is also constantly growing along with the risk of their malicious use. Attackers use all possible methods and means of technical intelligence to use potentially possible and create new types of information leakage channels to intercept it. object of information activities. Such oscillations caused by a certain speech (acoustic) signal can be intercepted by means of long-range intelligence. Most often, a laser microphone is used as such. The essence of its action is to emit a laser on the surface of the selected OID, which circulates a speech signal that creates sound vibrations on this surface. The movement of the surface leads to the modulation of the wave by phase, which is manifested in the variable nature of the sound signal Doppler shift of the frequency of the received signal. Often, such a surface is the glass of the windows, which reflects the beam to the receiver, to which is connected a detector that can reproduce the sound from the OID. This study aims to study the dependence of the laser microphone on such factors as: the location of the radiation source and the beam receiver from the membrane; membrane surface material; receiver type; materials of fencing constructions OID. The goal is to create a stand to demonstrate the operation of a laser microphone. The research process is carried out on a smaller scale, which is why an improvised room in the form of a cardboard box was chosen as the OID. Available tools were used to reproduce the operation of the laser microphone, so a laser pointer was chosen as the illuminator, and devices such as a solar panel, a light sensor and a signal amplifier microphone were used as the receiver. The study of the influence of selected factors was performed by measuring the voltage and volume of the acoustic signal using a multimeter and a certified program on the tablet, respectively.
激光传声器声学信息去除操作仿真建模的实验研究
谁拥有信息,谁就拥有世界。这句话每天都变得越来越重要。信息已经成为现代管理和发展的工具。因此,信息技术的作用也随着其被恶意利用的风险不断增大。攻击者利用一切可能的技术情报方法和手段,利用潜在的可能和创造新型的信息泄露通道进行拦截。信息活动的对象。这种由某种语音(声)信号引起的振荡可以用远程情报手段拦截。大多数情况下,激光麦克风就是这样使用的。其作用的本质是在选定的OID表面发射激光,该激光循环语音信号,在该表面产生声音振动。表面的运动导致了波的相位调制,这表现在声音信号的多普勒频移的可变性上。通常,这样的表面是窗户的玻璃,它将光束反射到接收器,接收器上连接着一个探测器,可以从OID中复制声音。本研究旨在研究激光传声器对以下因素的依赖关系:辐射源的位置和来自膜的光束接收器;膜表面材料;接收机类型;围栏结构材料。目标是创建一个支架来演示激光麦克风的操作。研究过程是在一个较小的规模上进行的,这就是为什么选择一个纸箱形式的临时房间作为OID的原因。利用现有的工具来重现激光麦克风的操作,因此选择激光笔作为照明,并使用太阳能电池板,光传感器和信号放大器麦克风等设备作为接收器。所选因素的影响研究是通过在平板上分别使用万用表和认证程序测量声信号的电压和体积来进行的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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