A simulation method of 16QAM modulation and demodulation based on Matlab platform

16 QAM modulation and demodulation mode has the advantage of high noise tolerance and superior anti-noise performance, and it is suitable to work in the environment with large signal-to-noise ratio and band-limited value. MATLAB has the advantage in data analysis and processing, and it integrates matrix calculation, numerical analysis, scientific data visualization, modeling and simulation of nonlinear dynamic systems and some other powerful functions in an easy-to-use windows environment so that it can provide a comprehensive solution for scientific research, engineering design, and some other fields. Accordingly, a simulation method of 16QAM modulation and demodulation based on MATLAB is proposed, which can simulate the 16QAM modulation and demodulation of the randomly-chosen signal as well as get the simulation image by compiling and running the matlab program. This method can reflect the change of parameters as well as the dynamic working process of modulation and demodulation, and it can also perform the data process, waveform, and performance analysis of the image obtained in the end, which has the advantage of intuition and clarity.