一种用于无线通信的数字语音识别系统设计  

Design of a digital speech recognition system used for wireless communication

作　　者：王艳芬[1] WANG Yanfen(Guangdong Polytechnic of Industry and Commerce,Guangzhou 510510,China)

机构地区：[1]广东工贸职业技术学院,广东广州510510

出　　处：《现代电子技术》2016年第16期151-154,共4页Modern Electronics Technique

基　　金：国家自然科学基金(62241759);2014年度广东省教育教学成果奖(高等教育)培育项目(883)

摘　　要：数字语音录制过程中存在的环境、用户口音和非目标词汇等干扰,使以往开发出的无线通信数字语音识别系统准确性较低、可移植性较差。因此,对无线通信的数字语音识别系统进行优化设计,设计系统的核心元件为C6727DSP芯片、QGDH710语音识别芯片和CC2520射频收发器。C6727DSP芯片进行数字语音的前期处理工作;QGDH710语音识别芯片对处理后的数字语音进行识别,并将其识别出的指令反馈到CC2520射频收发器;CC2520射频收发器进行指令的格式转换工作,并将指令传输到用户无线通信设备中,最终实现数字语音识别系统在无线通信中的有效利用。为了方便用户进行系统操作,软件给出用户无线通信设备虚拟功能图。经实验验证可知,该设计系统准确性较高,具有高度可移植性。The interference such as environment,user accent and non?target vocabulary exists in digital voice recording pro?cess,which makes the developed digital speech recognition systems used for wireless communication low accuracy and poor por?tability. Therefore,the optimization design of the digital speech recognition system used for wireless communication was per?formed. The core components of the system are chip C6727DSP,speech recognition chip QGDH710 and CC2520RF transceiver.The chip C6727DSP is used for early stage processing of the digital speech. The speech recognition chip QGDH710 is used torecognize the processed digital speech,and feed the recognized instruction back to the CC2520 RF transceiver. The CC2520 RFtransceiver is used to convert the instruction format,and transmit the instructions to the user’s wireless communication equip?ment to realize effective utilization of the digital speech recognition system in wireless communication. To perform system opera?tion conveniently for the users,a virtual function diagram of user’s wireless communication equipment is given by means of soft?ware. The experimental verification results show that the designed system has high accuracy and good portability.

关 键 词：无线通信 数字语音识别系统 系统设计 虚拟功能图 

分 类 号：TN915.34[电子电信—通信与信息系统] TN912.34[电子电信—信息与通信工程]