The lower frequency virtual digital stored oscillograph was designed and researched combining software control technology with interface circuit, software and hardware system were made.
Virtual digital-storage oscillograph system includes signal acquisition, signal processing and output display. Except signal acquisition is completed by hardware, the others are realized by software.
In order to adapt this status, we have developed a virtual oscilloscope software based on teacher's researching project-Portable, Intellective, Test and Fault Diagnosis System for Radar.