Peak detection for signals that contain high frequencies

1. What is peak detection?
2. What is peak to peak frequency?
3. What does the peak frequency tell us?

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.

What is peak to peak frequency?

Peak-to-peak (pk-pk) is the difference between the highest and the lowest values in a waveform. In alternating current (AC) the peak-to-peak value is twice the peak value or 2.828 times the root-mean-square (RMS) value.

What does the peak frequency tell us?

Peak frequency is simply the frequency of maximum power. For vocal sounds composed of a pure tone (sine wave) embedded in some environmental noise this is often the best pitch estimate. For other broadband and harmonic sounds, mean frequency and fundamental frequency often work better.