基于无线通信技术的调频发射接收系统设计  

Design of frequency modulation transmitting and receiving system based on wireless communication technology

作　　者：王瑾[1] 袁战军[2] 张金博[2] Wang Jin;Yuan Zhanjun;Zhang Jinbo(School of Information Engineering, Shaanxi Polytechnic Institute, Xianyang 712000, China;Department of Electronic Engineering, Shaanxi Institute of International Trade ＆ Commerce, Xianyang 712046,China)

机构地区：[1]陕西工业职业技术学院信息工程学院,咸阳712000 [2]陕西国际商贸学院电子工程系,咸阳712046

出　　处：《国外电子测量技术》2017年第11期89-93,共5页Foreign Electronic Measurement Technology

基　　金：咸阳市科学技术研究计划(2016k02-06)项目资助

摘　　要：为了满足目前中短距离范围内无线调频通信的需求,提出了一种基于无线通信技术的调频发射接收系统设计方案。系统采用FM发射/接收芯片RDA5820完成了调频发射、接收功能设计,通过IIC总线实现了RDA5820与STC89C52之间的数据传输,并使用LCD液晶屏实时显示系统工作状态。实验测试表明,在87.0~108.0 MHz频段范围内,该系统具有良好的音频信号发射与接收能力,其最大发射和接收距离可达800m,较好地实现了中短距离范围内的无线调频通信,并可应用于校园调频广播等领域。In order to meet the needs of wireless FM communication in the middle and short distance, a design scheme of frequency modulation transmitting and receiving system based on wireless communication technology is proposed. This system achieves the functional design of FM transmitting and receiving by using RDA5820 chip, and realizes the data transmission between RDA5820 and STC89C52 based on the IIC bus. The system working state is displayed in real time through LCD screen. The experimental results show that the system has good performance of transmitting and receiving audio signals in the range of 87.0MHz to 108.0MHz, and its maximum transmitting and receiving distance is up to 800 meters, which well achieves the wireless FM communication in the middle and short distance. This system can be applied to the campus FM broadcasting and other fields.

关 键 词：调频发射接收 无线通信技术 RDA5820 IIC总线 

分 类 号：TN923[电子电信—通信与信息系统]