Design and implementation of signal generator and real-time analysis system

A FPGA-based two-channel low frequency signal generator and analysis system has been designed to analyze the occurrence and analysis of low frequency signal. It uses FPGA for low frequency signal producing control chip module and analysis module. Control signal is sent to the FPGA by keys, FPGA generates frequency range step adjustable low frequency signal. Through the adder, fast Fourier transform is used to extract frequency domain signal by analysis module FPGA, the oscilloscope measures frequency amplitude and other information, to achieve low frequency signal frequency domain analysis capabilities. The system whose encapsulation is compact has friendly interface and it is very easy to operate and demonstrate.