CAJ | 학술논문

北斗卫星导航系统是我国自主研发且具有通信能力的区域性卫星导航系统，具有其他导航系统不具备的双向短报文通信功能。针对用户在抢险救灾等各种复杂环境中对语音通讯的需要，在北斗卫星导航系统短报文通信功能的基础上，设计一种可用于语音传输的系统。基于现有的北斗通信终端通过硬件扩展实现语音通信传输功能；通过语音压缩技术解决大量语音数据有效传输的问题。结合试验对语音数据进行分析，系统能顺利进行语音通信，语音质量达到预期效果。
북두위성도항계통시아국자주연발차구유통신능력적구역성위성도항계통，구유기타도항계통불구비적쌍향단보문통신공능。침대용호재창험구재등각충복잡배경중대어음통신적수요，재북두위성도항계통단보문통신공능적기출상，설계일충가용우어음전수적계통。기우현유적북두통신종단통과경건확전실현어음통신전수공능；통과어음압축기술해결대량어음수거유효전수적문제。결합시험대어음수거진행분석，계통능순리진행어음통신，어음질량체도예기효과。
BeiDou Navigation Satellite System is independently developed regional satellite navigation system by China which communication capability. For the users need to voice communications in disaster relief and other complex environments , designing a system can be used to voice transmission based on short message communication function of BeiDou satellite navigation system. Through voice compression technology solves a lot of voice data effective transmission problem; based on the existing BeiDou communication terminal via hardware expansion realize voice communication transmission function. Binding assays to analyze voice data, the system can smooth voice communications and voice quality achieve the desired effect.