计算太阳黑子的活动周期，分别利用周期图法，Lenvinson-Durbin法和Burg法求得其功率谱，并画出曲线，观察得到活动周期-Calculation of sunspot activity cycle, namely the use of periodogram, Lenvinson-Durbin and Burg obtained the power spectrum, and draw curve, observation cycle

matlab 功率谱程序设计-matlab power spectrum program design

基于matlab软件编写的功率谱的源程序-Matlab software development based on the power spectrum of the source

滚动轴承内外圈故障仿真信号MATLAB程序实现-MATLAB fault simulation signal bearing program