Isn't the point of FFT to decompose a series into different frequencies? shouldn't we see multiple frequencies at the end? instead, we see only one series at the end.
Hi. Thanks for your video. I have a question, at the last step you just select half of the data to be plotted; was not it necessary to double the amplitudes in this case to keep the energy fixed? Regards
I really want to say thank you! It was super helpful for my school project. Thanks again ❤
Isn't the point of FFT to decompose a series into different frequencies? shouldn't we see multiple frequencies at the end? instead, we see only one series at the end.
Hi. Thanks for your video. I have a question, at the last step you just select half of the data to be plotted; was not it necessary to double the amplitudes in this case to keep the energy fixed? Regards
Thanks. It works! I also wondering if we can reconstruct the signal back using sin wave with all the amplitudes and frequencies we got from FFT??
For that you would need phase data for each frequency in the FFT.
Hi there thank you again. if you have video for that, please kindly recommend to me. 🎉
Your "Point number" (D2) should start from 0, not from 1.