envelope detector


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envelope detector

[′en·və‚lōp di‚tek·tər]
(electronics)
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The proposed OTA is then used for the analog implementation of the CI speech processing sections: a variable gain amplifier (VGA) for the AGC, a Tow-Thomas bandpass biquad for the BPF bank, and an envelope detector for feature extraction.
Indeed, electronic transconductance tuning expressed in (2) can be extrapolated to electronically tuning the parameters of the speech processing sections, as further illustrated with three examples, namely a variable gain amplifier (VGA), a Tow-Thomas bandpass biquad and an envelope detector.
An envelope detector (square-law-type detection) on the user terminal is used to down-convert the mm-wave signals and eliminate the frequency instability and poor phase-noise characteristics of the two independent signals.
After passing through the antennas, at the designated user terminal nn the received downlink and P2P signals are down-converted to their associated IFs by the envelope detector. This can help eliminate the frequency instability and poor phase-noise characteristics of the two independent optical signals.
ASK receiver front ends typically comprise three blocks an input band pass filter to discern the carrier frequency from a broadband input noise spectrum, am envelope detector to extract the information of interest and a comparator to obtain binary outputs for PC software analyzer.
To date, network pages have been constructed for three of Stable Micro Systems' key instruments; the Dough Inflation System, Acoustic Envelope Detector and Dough & Gluten Extensibility Rig.
Four detector types will be considered here: envelope detector; square-law detector; true-RMS detector; and log detector.
The Acoustic Envelope Detector can only be used with Stable Micro Systems' texture analyzer.
The signal is then passed through an envelope detector (demodulator), which yields a square wave output.
Stable Micro Systems has designed and launched its new Acoustic Envelope Detector. Used with the TA.XTPlus texture analyser, the new instrument offers manufacturers a quick and easy method of collecting and analysing the noise released by crispy products as they are deformed.
It is then transformed into a DC signal by an envelope detector. This DC signal is so small that it cannot be directly applied to the power amplifier.
An envelope detector essentially provides an output that is the modulation envelope of an IF signal.