面向多媒体教室的任意配对数字无线话筒设计  

Design of Random Matching Digital Wireless Microphone Oriented Multi-media Classroom

作　　者：张会铭[1] 陆云龙[1] 叶仁春[1] 雷志华[1] 

机构地区：[1]华中科技大学现代教育技术中心,武汉430074

出　　处：《科学技术与工程》2009年第20期6177-6180,共4页Science Technology and Engineering

摘　　要：如何避免多媒体教室无线话筒的同频设备干扰,一直是值得研究的课题。利用非标准通信协议思想,提出一种以硬件和软件组合成真随机数,产生新的随机射频协议,避开同频设备干扰,实现无线话筒发射机与接收机的无干扰任意配对。项目实施表明,基于非标准随机射频协议的数字无线话筒,适应多媒体教室设备的发展。It is desirable to study on how to avoid the interference of the same frequency equipment of the wireless microphone in multi-meda classrooms all the time. Using the thought of non-standard communication protocol, a new random RF protocol is produced by the true random, which is combination of hardware and software, to avoid the interference of the same frequency equipment. As a result, no interference random matching of the transmitter and receiver in wireless microphone has been realized. The item implement shows that the digital wireless microphone based on non-standard random RF protocol, is in line with the development of multi-meda classroom equipment.

关 键 词：随机射频协议 任意配对 数字无线话筒 发射机 接收机 

分 类 号：TN641.3[电子电信—电路与系统]