新颖场强测试仪的分析与设计  

Analysis and Design of Novel Field Strength Tester

作　　者：刘泽群[1] 黄乘顺[1] 李男[1] 

机构地区：[1]邵阳学院信息工程系,湖南邵阳422000

出　　处：《邵阳学院学报（自然科学版）》2014年第1期42-44,共3页Journal of Shaoyang University：Natural Science Edition

基　　金：湖南省大学生研究性与创新性实验计划项目(湘教通【2009】320号:项目编号:300);湖南省教育厅科研资助项目(编号11C1126)

摘　　要：分析了高频无线信号在自由空间的传播规律及接收端场强信号的计算方法,设计了一种新颖高精度、便携带、稳定性好的场强测试仪.该系统以MSP430G2553为核心,通过高放、检波、低放等电路,将检测到的无线信号经过处理后输给单片机,MSP430G2553中AD10将检测到的场强信号转变为数字信号,并在LCD12864上显示场强信号的大小,实测结果表明该系统具有良好的测试精度.The analysis of radio signal propagation in free space and the calculation of field strength in received end are presented. A novel field strength tester with high-precision, portable type and stable properties is detailed. This system, with MSP430G2553 as the core, include amplifier, detection circuit and A/D convener. The digital signal from A/D converter output to LCD12864 and display the result. The measure results show that the system has good precision.

关 键 词：自由空间 场强测试 单片机 A D转换 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]