demodulated
Demodulation is the process of extracting the original signal from a modulated carrier wave in a transmitted communication signal. It is a fundamental step in receiving radio, television, and other wireless communication systems. The primary purpose of demodulation is to convert the modulated signal back into its original form, such as audio, video, or data, for further processing or playback.
Demodulation typically involves comparing the received modulated signal with a reference signal, often called a carrier
Common demodulation methods include:
- **Envelope detection** for AM signals, which extracts the amplitude variations of the carrier.
- **FM demodulation**, which can use techniques like phase-locked loops (PLLs) or discriminators to recover the frequency
- **Digital demodulation**, such as coherent detection for QAM or differential detection for PSK (Phase Shift Keying).
Demodulators are essential components in receivers, including radios, televisions, and satellite communication systems. Advances in digital