For example, a waveform is s=2 + 1.5 cos (100 t + 30) + cos (t + 60 200)
Use what kind of Fourier transform formula for decomposition, decomposition of each component
Use a program or a formula to explain? Thank you all for the great god

CodePudding user response:

http://www.cnblogs.com/Lyush/articles/3219196.html