Research on the hardware co-processing technology for waveform character searching with a digital oscilloscope

Waveform character Searching is one of the important means for a digital oscilloscope to capture and analyze signals of interest, and also marks the waveform analysis capability of the digital oscilloscope. Its performance determines the design level of the oscilloscope directly. At present, domestic digital oscilloscopes generally show low efficiency in waveform character Searching. For this reason, a research on the FPGA+DSP-based waveform character Searching hardware co-processing technology was conducted. Details on the operating principle and design method were given, and comparative analyses were performed on software and hardware-based Searching efficiency. The results of simulation and testing indicate that this method can effectively improve the real-time processing capability of an oscilloscope.