Students majoring in communication should have studied the course of signal and system, which is the basis of digital signal processing. Digital signal processing is to discretize the signal in time and value by sampling. The advantage of this is that it is convenient to use tools such as digital signal processor or FPGA to process the signal accordingly.

MATLAB is a mathematical model simulation software. There are many common command tools for digital signal processing, which can conveniently realize the simulation of digital signal processing.

VHDL is a hardware description language. Commonly used in the development of FPGA, it is an essential tool in the field of communication research and development.