Howtosignalprocessing
- What is the Hilbert envelope?
- How do you implement an envelope detector?
- What is the function of envelope detector?
What is the Hilbert envelope?
The envelope is the magnitude of the analytic signal computed by hilbert . Plot the envelope along with the original signal. Store the name-value pair arguments of the plot function in a cell array for later use.
How do you implement an envelope detector?
Method 1: Squaring and Lowpass Filtering
This envelope detection method involves squaring the input signal and sending this signal through a lowpass filter. Squaring the signal effectively demodulates the input by using itself as its own carrier wave.
What is the function of envelope detector?
An envelope detector can be used to demodulate a previously modulated signal by removing all high frequency components of the signal. The capacitor and resistor form a low-pass filter to filter out the carrier frequency.
