How to Find spectral Peaks from 2D array of Spectrogram? [closed]

1. How do you find the spectral peak?
2. What is a Nfft spectrogram?
3. How is spectrogram computed?
4. What is peak detection?

How do you find the spectral peak?

For a particular spectral peak, the dichroic ratio R is defined by the relationshipR = A⊥/A∥where A⊥ and A∥ are the absorption of the LB films when the light is polarized perpendicular or parallel to the dipping direction, respectively.

What is a Nfft spectrogram?

The FFT Spectrogram trend, sometimes known as a color density spectral array (CDSA), displays a density spectral array of the frequency and power characteristics of the EEG, derived from a fast Fourier transform (FFT) analysis, as a function of time.

How is spectrogram computed?

Divide the signal into equal-length segments. The segments must be short enough that the frequency content of the signal does not change appreciably within a segment. The segments may or may not overlap. Window each segment and compute its spectrum to get the short-time Fourier transform.

What is peak detection?

Definition: Peak detector circuits are used to determine the peak (maximum) value of an input signal. It stores the peak value of input voltages for infinite time duration until it comes to reset condition.