mottakerdemodulator
A mottakerdemodulator is the demodulation stage in a radio receiver responsible for extracting the original information signal from a modulated carrier. In Norwegian-language usage the term reflects the function within the receiver, and in English contexts the component is usually called the demodulator or the receiver demodulator. Its primary purpose is to recover audio, data, or other baseband information while rejecting the carrier and as much noise as possible.
In a typical receiver, the demodulator follows the RF front end and any intermediate frequency processing.
Types of mottakerdemodulators include:
- Analog demodulators: for amplitude modulation, an envelope detector or diode detector recovers the audio; for frequency
- Digital demodulators: in software-defined radios or digital receivers, coherent demodulation handles QAM, PSK, or other digital
Key considerations for a mottakerdemodulator are noise performance, linearity, carrier recovery, synchronization, and susceptibility to interference.