• WordNet 3.6
    • n demodulator rectifier that extracts modulation from a radio carrier wave
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Webster's Revised Unabridged Dictionary
    • n demodulator (Electronics) An electronic device which extracts the modulation from a radio carrier wave, and outputs the original information-bearing signal.
    • ***


In news:

Industry's First Octal Ultrasound Receiver with Digital I/Q Demodulator and Decimation Filter Reduces Processor Overhead in Ultrasound Systems.
The LTC5585 quadrature demodulator is capable of baseband output demodulation bandwidth of greater than 530 MHz.
A VSA approach is a reasonable and qualitative solution for assessing the demodulator noise figure at the baseband.
Compared tosuperheterodyne architectures, a monolithic, high-linearity quadrature demodulator is vowing to reduce the component count of the receive signal chain in third-generation (3G) base stations by at least 75 percent.
Will introduce the new Wegener iPump 562 media server, which supports bandwidth-saving features, such as MPEG-4/h.264 video compression, file-based workflows and DVB-S2 satellite demodulation.
The RF front-end IC can be applied for a BPSK demodulator by using synchronized detection.
A fresh approach is needed for the accurate characterization of the analog I/Q modulators and demodulators used in mobile radios with complex modulation.
) are converted to before the demodulation stage .
It is easier to build a demodulator that works on only one frequency than all the carrier frequencies of the signals that travel in the air.

In science:

We modulate the magnetic field, and demodulate the detected signal at ωm = 0.05 Hz to give ρωm .
Building a 3.5 m prototype interferometer for the Q & A vacuum birefringence experiment and high precision ellipsometry
The preliminary sample rate remains unchanged, since the demodulation is performed in the digital domain.
Compressed Beamforming in Ultrasound Imaging
Exploiting this fact, some state of the art systems manage to reduce the amount of samples transmitted from the frontend, by down-sampling the data, after demodulation and lowpass filtering.
Compressed Beamforming in Ultrasound Imaging
Abstract—This paper presents a significant modification to the Random Demodulator (RD) of Tropp et al. for sub-Nyquist sampling of frequency-sparse signals.
A Constrained Random Demodulator for Sub-Nyquist Sampling
The modification, termed constrained random demodulator, involves replacing the random waveform, essential to the operation of the RD, with a constrained random waveform that has limits on its switching rate because fast switching waveforms may be hard to generate cleanly.
A Constrained Random Demodulator for Sub-Nyquist Sampling