高性能双通道稀疏采样虚拟示波器研制  

Development and Verification of High Performance Dual Channel Virtual Oscilloscope viaSparse Sampling

作　　者：姜斌[1] 唐禹 包建荣[1] 唐向宏[1] 朱芳[1] JIANG Bin;TANG Yu;BAO Jianrong;TANG Xianghong;ZHU Fang(School of Communication Engineering,Hangzhou Dianzi University,Hangzhou 310018,China)

机构地区：[1]杭州电子科技大学通信工程学院,杭州310018

出　　处：《实验室研究与探索》2022年第3期144-149,共6页Research and Exploration In Laboratory

基　　金：国家自然科学基金项目(U1809201);浙江省基础公益研究计划(LY20F010010);2021年度杭州电子科技大学高等教育教学改革研究实验技术专项项目(ZXJG202101)。

摘　　要：虚拟仪器技术可有效降低电子类实验室建设的测试仪器投入。针对高校实验教学需求,研制了一款双通道虚拟示波器。该示波器硬件电路采用STM32+FPGA架构,结合压缩感知的随机采样完成低功耗信号采样及恢复,获得采样率200MS/s,带宽100MB功能的信号展示功能。在有限的硬件资源基础上,开发了信号发生器、频谱仪等功能,增强了实用性。相比现有同类产品,该示波器具有功耗低、配置灵活、信号测试带宽大及扩展性强等优势,具有较大应用价值。The virtual instrument technology can effectively reduce the instrumentinvestment of electronic laboratories. According to the requirements of experimental teaching in universities, a dual-channel virtual oscilloscope has been successfully developed in this paper. The circuit of the oscilloscope uses the STM32+FPGA architecture. The random sampling and compressed sensing are utilized to achieve low-power signal sampling and recovery. Then, the oscilloscope achieves the function of signal display with a sampling frequency of 200 Msps and a bandwidth of 100 MB. In addition, on limited hardware resources, signal generators, spectrum analyzers are developed together to enhance practicability. Compared with existing products, the oscilloscope has good advantages of low power consumption, flexible configuration, broad signal measurement bandwidth and strong extension and so on, thus it possesses large practical value.

关 键 词：虚拟仪器 双通道 压缩采样 现场可编程门阵列 实验教学 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]