Hi, I am a student in engineering and my project is about identifying frequencies corresponding to vibrations in internal combustion car engines. I have obtained the signal of the vibrations via accelerometer connected to laptop microphone and transformed it in frequency domain via FFT command.
My problem is that I cannot figure the way how to generate a code that would return me the frequencies that present some peak values of the spectrum. For example, my highest vibration is somewhere near to 30 Hz, but how can I instuct Matlab to automatically return precise values?
Does anyone knows codes and functions related to Fourier waveform processing?
Thank you in advance!
