Detectors 101
Detectors 101 : Particle Detectors: (4.6) Detector (Radio): (1) Amplitude Modulation Detectors: (1. 2) Product Detector: A product detector is a type of demodulator used for AM and SSB signals, where the original carrier signal was removed. Rather than converting the envelope of the signal into the decoded waveform like an envelope detector, the product detector takes the product of the modulated signal and a local oscillator, hence the name. At least partially, it mixes the signal with the output of the local oscillator. This can be accomplished by heterodyning. The received signal is mixed, in some type of nonlinear device, with a signal from the local oscillator, to produce an intermediate frequency, referred to as the beat frequency, from which the modulating signal is detected and recovered
No records Found