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Demodulation is extracting the original information-bearing signal from a carrier wave. A demodulator is an electronic circuit (or computer program in a software-defined radio) that is used to recover the information content from the modulated carrier wave. [1] There are many types of modulation so there are many types of demodulators.
A demodulator (sometimes detector) is a circuit that performs demodulation, the inverse of modulation. A modem (from mod ulator– dem odulator), used in bidirectional communication, can perform both operations.
A major category of AM demodulation technique involves envelope detection, since the envelope of an AM signal is the original signal. The diode detector is a simple envelope detector. It consists of a diode connected between the input and output of the circuit, with a resistor and capacitor in parallel from the output of the circuit to the ...
RF modulators operate on different channels depending on the region and have been integrated into various home electronics. However, they tend to produce lower image quality than a baseband connection due to losses during the modulation and demodulation process. In professional broadcast settings, more sophisticated modulators are used.
A demodulator is one of the most important parts of the receiver. The exact structure of the demodulator is defined by a modulation type. However, the fundamental concepts are similar. Moreover, it is possible to develop a demodulator that can process signals with different modulation types.
MaxLinear's MxL683 Tuner + ISDB-T Demodulator SoC Powers "Time Shift" Televisions CARLSBAD, Calif.--(BUSINESS WIRE)-- MaxLinear Inc. (NYS: MXL) , a leading provider of integrated radio frequency ...
A modulator-demodulator, commonly referred to as a modem, is a computer hardware device that converts data from a digital format into a format suitable for an analog transmission medium such as telephone or radio.
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