自己编的5种调制信号，是机器学习的例程，随机调制信号下的模拟ppm，仿真效率很高的，这个有中文注释，看得明白，用于建立主成分分析模型。- Own five modulation signal, Machine learning routines, Random ppm modulated analog signal under High simulation efficiency, The Chinese have a comment, understand it, Principal comp