| 基于FPGA的脉冲信号参数测量系统设计 |
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| 引用本文： | 李德明,胡君辉.基于FPGA的脉冲信号参数测量系统设计[J].实验技术与管理,2019(5):101-106. |
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| 作者姓名： | 李德明 胡君辉 |
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| 作者单位： | 广西师范大学物理科学与技术学院 |
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| 基金项目： | 2017年广西中青年教师基础能力提升项目(2017KY0073)资助;2017年广西师范大学教育教学改革项目(2017XJGK17)资助 |
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| 摘 要： | 设计了一种以FPGA(现场可编程门阵列)作为主控制器的脉冲信号参数测量系统,采用单片机与FPGA相结合组成系统架构,并通过高速A/D、高速比较器、放大器等硬件电路实现脉冲信号参数采集,数据存入FPGA内部RAM中并进行处理,单片机读取数据并转换后在LCD显示测得参数。该设计实现了脉冲信号幅度、频率、占空比、上升时间等参数测量。测试结果表明,系统测量误差满足设计要求,具有性价比高、功能拓展灵活等特点。
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| 关 键 词： | 脉冲信号 数据采集 占空比 FPGA 上升时间 |
Design of pulse signal parameter measuring instrument based on FPGA |
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| LI Deming,HU Junhui.Design of pulse signal parameter measuring instrument based on FPGA[J].Experimental Technology and Management,2019(5):101-106. |
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| Authors: | LI Deming HU Junhui |
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| Institution: | (College of Physics and Technology,Guangxi Normal University, Guilin 541004, China) |
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| Abstract: | A pulse signal parameter measurement system based on field programmable gate array(FPGA) as the main controller is studied and designed. The system architecture is composed of single chip computer and FPGA, and he parameter acquisition of pulse signal is realized by the speed A/D, high-speed comparator, amplifier and other hardware circuits. The data is stored in the internal RAM of the FPGA for processing, and the MCU reads the data and displays the measured parameters on the LCD after conversion. The design realizes the measurement of pulse signal parameters such as amplitude, frequency, duty cycle and rise time. The test results show that the system measurement error meets the design requirements and has the characteristics of high cost performance and flexible function expansion. |
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| Keywords: | pulse signal data acquisition duty cycle FPGA rise time |
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