研究生时的现代信号处理的作业，大学数值分析算法，对于初学者具有参考意义，基于人工神经网络的常用数字信号调制，详细画出了时域和频域的相关图，能量熵的计算。- Modern signal processing jobs when the graduate, University of numerical analysis algorithms, For beginners with a reference value, The commonly used digital signal modulation based on artificial neural network, Correlation diagram shown in detail the time domain and frequency domain, Energy entropy calculation.