厦门大学学报（自然科学版）2016，Vol.55Issue(4)：570-574,5.DOI:10.6043/j.issn.0438-0479.201512006
采用时间反转的调频水声语音通信方法
Frequency Modulation Underwater Acoustic Voice Communication Technology with Time Reversal
摘要
Abstract
As the underwater acoustic channel is a hostile channel with serious time varying,multipath effect,high-noise among others,research and design of the high performance underwater acoustic voice communication is highly challenging.Frequency mod-ulation (FM)technology bears strong anti-jamming ability,which is convenient to be implemented.However,the communication performance of FM is seriously affected under the underwater channel with multipath,high-background noise among others.For the purpose of improving the underwater voice communication performance under multipath conditions,this paper introduces the time-reversal mirror technology to the design of underwater FM voice communication system,which can concentrate multipath and im-prove signal-to-noise ratio (SNR).Finally,this paper adopts the PESQ to evaluate the FM underwater speech quality.Via the sea trial experiment,time-reversal mirror technology can improve the communication performance of the proposed system.关键词
水声语音通信/调频/时间反转/多径信道Key words
underwater acoustic voice communication/frequency modulation (FM)/time reversal/multipath channel分类
信息技术与安全科学引用本文复制引用
吴燕艺,李剑汶,童峰..采用时间反转的调频水声语音通信方法[J].厦门大学学报（自然科学版）,2016,55(4):570-574,5.基金项目
国家自然科学基金(11274259,11574258) （11274259,11574258）
福建省中青年教师教育科研项目(JA14008) （JA14008）
