基于体域网技术的数字音频实时传输系统设计  

Design of digital audio real⁃time transmission system based on body area network technology

作　　者：买尔丹·祖农 MARDAN Zunon(Department of Information Engineering,Xinjiang Institute of Engineering,Urumqi 830023,China)

机构地区：[1]新疆工程学院信息工程学院,新疆乌鲁木齐830023

出　　处：《现代电子技术》2022年第3期176-180,共5页Modern Electronics Technique

摘　　要：传统数字音频传输系统内部的磁感应电流检测器精度较低,导致总谐波失真+噪声,为了解决上述问题,利用体域网技术设计了一种新的数字音频实时传输系统。在系统硬件部分,主要设计了数字音频处理器、数字音频发送机和通信接口,用于同时处理FIRS、LMS等多种指令并降低信号的失真程度;在系统软件部分,引入体域网技术,通过信号转换、信号质量修正、信号质量偏差计算实现数字音频实时传输。实验结果表明,该系统能够有效提高磁感应电流检测器精度,减少传输过程中受到的噪声影响。The accuracy of internal magnetic induction current detector of the traditional digital audio transmission system is low,which results in the situation of total harmonic distortion(THD)+noise.In view of the above,a new digital audio real⁃time transmission system based on the body area network(BAN)technology is designed.In terms of the system hardware,the digital audio processor,digital audio transmitter and communication interface are designed to process FIRS,LMS and other instructions at the same time and reduce the degree of signal distortion.In terms of the system software,the BAN technology is introduced to realize digital audio real⁃time transmission by signal conversion,signal quality correction and signal quality deviation calculation.The experimental results show that the system can effectively improve the accuracy of magnetic induction current detector and reduce the influence of noise during the digital audio transmission.

关 键 词：体域网技术 数字音频传输 实时传输系统 磁感应电流 数字音频处理器 数字音频发送机 通信接口 

分 类 号：TN02-34[电子电信—物理电子学] TP399[自动化与计算机技术—计算机应用技术]