摘要
设计了用于检测我国蜂窝数字移动通信网GSM通信采用的900 MHz频段的信号功率强度,以STC12C5A60S2微处理器为核心,设计制作了信号强度检测系统,该系统主要包括小信号放大模块、可调衰减器、0900BL18B200射频变压器、AD8362功率电压转换电路和LCD1602显示模块等。在用ZY12RFSys32BB1射频训练系统模拟900 MHz手机信号进行测试并确定相关参数后,通过天线收集GSM 900 MHz信号进行了实际测试。测量结果表明,系统工作稳定,达到了设计要求。
The design is used to detect the signal intensity of GSM 900 MHz adopted in cellular digital mobile communication network in China. With STC12C5A60S2 as the core MCU, it designs a detection system of signal intensity. It mainly includes the small signal amplifier module, adjustable attenuator, 0900BL18B200 radio transformer, AD8362 power voltage conversion circuit, LCD1602 display module and so on. With the help of ZY12RFSys32BB1 radio frequency training system to simulate GSM 900 MHz cellular signal, it determines the relevant parameters. Then, it carries out the actual tests with antenna collecting GSM 900 MHz cellular signal. Test resultes show that the system can work stably, and meet the requirements of design.
出处
《微型机与应用》
2014年第1期28-30,共3页
Microcomputer & Its Applications
