一种智能对讲终端的音频电路设计方法  

Audio Circuit Design Method of Intelligent Intercom Terminal

作　　者：霍丽丹 孙剑宇 许聪聪 张少伟 HUO Lidan;SUN Jianyu;XU Congcong;ZHANG Shaowei(Hebei Far-East Communication SystemEngineering Co.,Ltd.,Shijiazhuang 050200,China)

机构地区：[1]河北远东通信系统工程有限公司,河北石家庄050200

出　　处：《计算机与网络》2021年第14期57-60,共4页Computer & Network

基　　金：河北省省级科技计划资助(19210409D)。

摘　　要：智能对讲终端主要应用于应急日常管理,自然灾害、事故灾难、公共卫生等应急突发公共安全领域,救援队伍之间需要音视频通信来进行协作,同时也需要把现场情况回传给指挥中心,指挥中心根据现场情况进行统一指挥调度。介绍了一种智能对讲终端的音频电路的设计方法,从总体方案、输入电路、输出电路、回声消除和噪声抑制方面进行了详细阐述,同时提供了设计电路的实验测试数据。The intelligent intercomterminals are mainly applied in emergency management and emergency public security fields such as natural disasters,accidents disasters,and public health.The rescue teams need to collaborate through audio and video communication.At the same time,it’s also needed to transmit the site situation back to the command center to make an unified command and dispatch.A design method of audio circuit of intelligent intercom terminal is introduced,which is described in detail from the aspects of general scheme,input circuit,output circuit,echo cancellation and noise suppression,and at the same time,the experimental test data of the design circuit is provided.

关 键 词：智能对讲终端 应急领域 音频电路设计 噪声抑制 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]