虚拟数字示波器主要由软件控制完成信号的采集、处理和显示。系统软件总体上包括数据采集、波形显示、参数测量、频谱分析及波形存储和回放等五大模块。-Virtual Digital Oscilloscope complete the acquisition signals controlled by software, processing and display. System software, including the overall data acquisition, waveform display, parameter measurement, spectrum analysis and waveform storage and playback of five modules.