Beat envelope detection

1. What is envelope detection in ultrasound?
2. What is envelope envelope detection?
3. Can envelope detector be used for SSB?
4. How do you find the envelope of a signal?

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).

What is envelope envelope detection?

An envelope detector is sometimes referred to as an envelope follower in musical environments. It is still used to detect the amplitude variations of an incoming signal to produce a control signal that resembles those variations. However, in this case the input signal is made up of audible frequencies.

Can envelope detector be used for SSB?

The only downside is that SSB cannot be demodulated by means of a simple envelope detector.

How do you find the envelope of a signal?

In the EMD algorithm, the upper and lower envelopes of signals are obtained by using two steps: 1) identify all the local extrema; 2) interpolate between extrema by a cubic spline [9]. The interpolative envelope includes the upper and lower envelopes.