基于STM32的便携式多功能信号调制度测量系统设计  

Design of a Portable Multifunctional Signal Modulation Measurement System Based on STM32

作　　者：金雨欣 王宇轩 崔渊 高倩 佘雨婷 沈奕 JIN Yuxin;WANG Yuxuan;CUI Yuan;GAO Qian;SHE Yuting;SHEN Yi(School of Electrical and Information Engineering,Jiangsu University of Technology,Changzhou 213001,China)

机构地区：[1]江苏理工学院电气信息工程学院,江苏常州213001

出　　处：《现代信息科技》2024年第16期20-23,27,共5页Modern Information Technology

基　　金：2023年江苏省大学生创新创业训练计划项目(202311463005Z);江苏理工学院教改项目(11610212125)。

摘　　要：文章设计并制作一款基于STM32的便携式多功能信号调制度测量系统,使用ST4M32F103作为主控芯片,通过前级信号调理电路的处理,实现对调制方式进行自动判别;针对已调信号,设计专门的硬件解调模块进行信号解调,并将解调波形直观地呈现出来;为了方便单片机对调幅度的测量,设计有效值检波电路和ADC电压采集模块,将模拟信号进行转换,实现对调幅度的测量;采用FPGA等精度测量法测量信号调频度,并通过FPGA与单片机的通信实现数据的传输与显示,然后利用无线模块和云平台实现数据的远程显示和控制。This paper designs and produces a portable multifunctional signal modulation measurement system based on STM32,uses STM32F103 as the main control chip,and achieves automatic discrimination of modulation modes by processing the previous signal conditioning circuit.A dedicated hardware demodulation module has been designed to conduct the signal modulation for the modulated signal,and the demodulation waveform is presented intuitively.In order to facilitate the measurement of amplitude modulation by single-chip microcomputer,an effective value detection circuit and an ADC voltage acquisition module are designed to convert analog signals and achieve measurement of amplitude modulation.It uses FPGA and other precision measurement methods to measure signal frequency modulation,achieves data transmission and display through communication between FPGA and single-chip microcomputer,and utilizes wireless modules and cloud platforms to achieve remote display and control of data.

关 键 词：调制度 解调 STM32 等精度测量 云平台 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论] TN941.4[自动化与计算机技术—计算机科学与技术]