基于802.15.4无线Ad hoc语音终端的设计与实现  

Design and implementation of wireless ad hoc voice terminal based on protocol 802.15.4

作　　者：黄瑞[1] 丁志中[1] 牛坤[1] 

机构地区：[1]合肥工业大学计算机与信息学院,安徽合肥230009

出　　处：《合肥工业大学学报（自然科学版）》2014年第10期1216-1221,共6页Journal of Hefei University of Technology：Natural Science

摘　　要：具有无线Ad hoc自组网功能的手持终端在军事、航海等许多领域都有重要的应用,此类终端可以在移动状态下自组Ad hoc网络,并且可通过多跳技术实现任意2个节点之间的语音通信和视频传输功能。文章设计实现的无线Ad hoc语音终端,以S3C2440处理器为核心的ARM9平台作为主控制平台,将基于AMBE-2000为核心的语音编解码模块和基于IEEE 802.15.4协议标准的ZigBee无线传输模块作为主要功能模块,并通过LCD触摸屏进行人机交互以实现上述功能。实验结果表明,该终端具有传输带宽低、音质优及性价比高等特点。Handheld terminal with functions of wireless ad hoc network has been applied in many fields such as military and marine .ad hoc network topology can be formed automatically by the terminal in the state of moving .And the terminal can complete voice communication and video transmission be-tween any two nodes by the multiple hops technology .In this paper ,the wireless ad hoc voice termi-nal controlled by ARM9 platform with S3C2440 processor as the core is designed and implemented . The voice compression module based on the AMBE-2000 and the wireless transmission module based on ZigBee protocol are regarded as the main function units ,and the users can achieve these functions through LCD touch screen . The results show that the terminal has many advantages such as low transmission bandwidth ,high quality ,good cost performance ,etc .

关 键 词：语音终端 S3C2440处理器 编码压缩 自组网 

分 类 号：TN876.5[电子电信—信息与通信工程]