Envelope

Envelope detector demodulation

Envelope detector demodulation
  1. Why the envelope detector is so popular in AM demodulation?
  2. How does an envelope detector circuit work?
  3. Can you use envelope detector for SSB demodulation?
  4. What is envelope detection method?

Why the envelope detector is so popular in AM demodulation?

Such a device is often used to demodulate AM radio signals because the envelope of the modulated signal is equivalent to the baseband signal.

How does an envelope detector circuit work?

The capacitor in the circuit stores up charge on the rising edge, and releases it slowly through the resistor when the signal falls. The diode in series rectifies the incoming signal, allowing current flow only when the positive input terminal is at a higher potential than the negative input terminal.

Can you use envelope detector for SSB demodulation?

Generally an envelope detector can't be used to demodulate a DSB-SC. Demodulating a signal means to get back your original signal that was actually transmitted by any modulating techniques, or rather types.

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.

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