A portable 24-GHz auditory radar for non-contact speech sensing with background noise rejection and directional discrimination

Heng Zhao, Zhengyu Peng, Hong Hong, Xiaohua Zhu, Changzhi Li

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

12 Scopus citations

Abstract

This paper presents a portable 24-GHz auditory radar system for non-contact robust speech information sensing. To measure the tiny vibration on human throat induced by vocal cords, a high operating frequency and a pair of 4×4 antenna arrays are utilized to achieve high sensitivity. Experiments under high-level background noise and voice interference are carried out. Compared with the microphone-detected results, the developed radar system can accurately acquire high-resolution time-varying speech information with good noise rejection and directional discrimination.

Original languageEnglish
Title of host publication2016 IEEE MTT-S International Microwave Symposium, IMS 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509006984
DOIs
StatePublished - Aug 9 2016
Event2016 IEEE MTT-S International Microwave Symposium, IMS 2016 - San Francisco, United States
Duration: May 22 2016May 27 2016

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
Volume2016-August
ISSN (Print)0149-645X

Conference

Conference2016 IEEE MTT-S International Microwave Symposium, IMS 2016
CountryUnited States
CitySan Francisco
Period05/22/1605/27/16

Keywords

  • Auditory radar
  • spectrogram
  • speech signal detection

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