Reporter: Zhejiang Bet365 sportsbook review Professor Lin Feng
Reporting location:#Tencent Conference:918-729-418
Bet365 sportsbook review time:2022Year11month15Sunday (Tuesday) afternoon3Point
Bet365 sportsbook review title: Voice content attack based on millimeter wave sensing
Bet365 sportsbook review Summary: With the development of smart terminals and the popularity of online communication, based onPCVoice communication with smart terminals such as mobile phones has become commonplace。In order to prevent the leakage of voice information，Acoustic protection measures such as sound insulation are often used in private places，Prevent voice information from being eavesdropped by minimizing the leakage of sound waves。What we found，Except sound waves，The user’s voice information during voice communication can be reconstructed and restored through side channel sensing of wireless signals。This Bet365 sportsbook review (1) For scenarios where sound insulation and acoustic protection are adopted，Introducing a method of acoustic-electrical conversion using passive piezoelectric elements，And use high-precision millimeter wave equipment to sense piezoelectric elements and extract voice Bet365 sportsbook review from them；Constructed an acoustic wave demodulation method based on piezoelectric effect，And improve the signal-to-noise ratio of the recovered speech signal through multi-antenna speech enhancement。（2) Introduces how to recover the voice content from the tiny vibrations produced on the phone case when the handset of the phone emits sound。Design a method based on complex plane curve fitting to eliminate the impact of mobile phone user movements；Use the adaptive denoising network based on neural network to eliminate the signal-to-noise ratio attenuation problem caused by device noise interference and long-distance sensing，Significantly improve the signal-to-noise ratio and intelligibility of the recovered speech signal。
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Personal introduction: Lin Feng, School of Cyberspace Security, Zhejiang Bet365 sportsbook review/School of Computer Science and Technology“Hundred Talents Plan”Researcher.CCF/IEEEPremium member。Graduated from Zhejiang Bet365 sportsbook review，Received Ph.D. from Tennessee Technological Bet365 sportsbook review, USA。Formerly an assistant professor at the Bet365 sportsbook review of Colorado, Denver，Research Scientist, State Bet365 sportsbook review of New York at Buffalo。The main research direction is Internet of Things security，Intelligent and mobile sensing，Wireless Security，Biometric Identity Authentication，Artificial IntelligenceSafetyetc. Published in first-class international journals and important international conferences100More than high-level papers, includingCCS、NDSS、MobiCom、SenSys、MobiSys、UbiComp、TMC、TNETetc., participated in the formulation of industry standards. serveIEEE NetworkEditorial board members of other journals andMobiComWaiting for the meetingTPCMember. get2021 ACM SIGSAC ChinaRising Star Award，MobiSys’20，Globecom’19, BHI’17Conference Best Paper Award,HotMobile’18Best Presentation Award at the Conference,Infocom’21Nomination for Best Paper Award at the Conference,MobiCom’22Best Poster Award NominationandIEEE J-BHIAwards such as highlighted articles on journal covers。Leading students to win the China Graduate Innovation Award“core”National first prize in the competition，First Prize in the Finals of China Bet365 sportsbook review Computer Competition Network Technology Challenge，And Outstanding Instructor Award.
