demodulation
Carrier wave stripping
Demodulation is the process of extracting the original information signal from a modulated carrier wave.
It's the reverse of modulation—what happens when a radio receiver converts broadcast signals back into audible sound, or when a modem translates telephone-line signals into digital data.
The demodulation circuit recovered the audio from the AM signal.
One that transports
- waveformGraphed oscillation pattern
- basebandSignal at original frequencies
- frequencyRate of recurrence
- amplitudeMaximum oscillation displacement
phase · bandwidth · sideband · spectrum · noise · interference · distortion · attenuation
One who accepts transmission
- detectorDevice that senses
- circuitClosed electrical pathway
- amplifierSignal-strengthening electronic device
- filterPorous separation device
mixer · oscillator · transducer · converter · diode · capacitor · inductor · discriminator
Extracting meaning from symbols
- extractionAct of removing
- recoveryRegaining what was lost
- filteringSelective passage of elements
- conversionAct of changing states
reconstruction · error correction · equalization · synchronization · interpolation · digitization · DSP · algorithm
Electromagnetic wave receiver
- televisionBroadcast viewing device
- satelliteOrbiting celestial body
- modemDigital-to-analog signal converter
- telecommunicationsRemote signal transmission technology
radar · sonar · WiFi · Bluetooth · cellular · GPS · broadcasting · data transmission
carrier
One that transports
- waveformGraphed oscillation pattern
- basebandSignal at original frequencies
- frequencyRate of recurrence
amplitude · phase · bandwidth · sideband · spectrum · noise · interference · distortion · attenuation · signal-to-noise ratio
receiver
One who accepts transmission
- detectorDevice that senses
- circuitClosed electrical pathway
- amplifierSignal-strengthening electronic device
filter · mixer · oscillator · transducer · converter · diode · capacitor · inductor · discriminator · phase-locked loop
decoding
Extracting meaning from symbols
- extractionAct of removing
- recoveryRegaining what was lost
- filteringSelective passage of elements
conversion · reconstruction · error correction · equalization · synchronization · interpolation · digitization · DSP · algorithm · real-time
radio
Electromagnetic wave receiver
- televisionBroadcast viewing device
- satelliteOrbiting celestial body
- modemDigital-to-analog signal converter
telecommunications · radar · sonar · WiFi · Bluetooth · cellular · GPS · broadcasting · data transmission · audio
AM
Pre-midday designation
coherent · synchronous · asynchronous · quadrature · differential
demodulationmodulation
Varying signals to transmit
encoding · amplitude modulation · frequency modulation · multiplexing · transmission