Some Demodulation Techniques are given below:
- Diode Rectifier envelope Detector
Now let’s see how an amplitude modulated wave is being detected and demodulated. We need a diode that rectifies the incoming signal which allows only half of the wave. A capacitor is used to remove unwanted radio frequency signals leaving the original form.
- Product Detector
The demodulation of amplitude modulated wave can be done by receiving the signals that incorporate a product detector of the mixer and with a local beat frequency oscillator or a carrier injection oscillator. The local oscillator cannot synchronise with the incoming signal carrier should be the basic form.
- Synchronous Detector
This method of synchronous detection facilitates optimum performance.it employs a product detector or a mixer with a local oscillator that is synchronised to the incoming signal carrier. This proves to be more useful than other forms of AM modulation