低成本功能可扩展虚拟示波器研制及验证.

To overcome currently existing problems of poor scalability and high price of virtual oscilloscopes, a virtual oscilloscope is developed by using compressed sensing signal processing technology and STM32, field programmable gate array (FPGA) and other modules combined with personal computers (PCs). It has 50 MB bandwidth and 100 MS/s sampling frequency. It is connected to a PC via a high-speed universal serial bus ( USB ) interface. Besides the waveform display and measurement functions of traditional oscilloscopes, it also has flexible and programmable software extensions, such as the signal generator, the spectrum analysis, and the amplitude-frequency measurement. Compared with the existing virtual oscilloscope, the developed virtual oscilloscope has many advantages, such as various functions, low cost, high expandability and easy portability. [ABSTRACT FROM AUTHOR]