Howtosignalprocessing
What is envelope detection method?
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 envelope detection in ultrasound?
In medical ultrasound (US) imaging, the envelope detection is a commonly used digital signal processing (DSP) technique to extract the magnitude of the oscillating broadband radio-frequency (RF) signals from the high-frequency echo carrier before any back-end processing (Chang et al., 2007).
