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At the system level, it’s interesting to see the evolution between amplitude modulation vs. frequency modulation as well as the move to all-digital modulation schemes. While these two broad methods of modulation are most well-known among electronics enthusiasts, they are not the most common ...
Spectro-temporal processing in the envelope-frequency domain. The frequency selectivity for amplitude modulation applied to tonal carriers and the role of beats between modulators in modulation masking were studied. B... D Stephan,Ewert,L Jesko,... - 《Journal of the Acoustical Society of America...
The transmission of audio frequencies (for example, speech and music) over a distance is usually performed by operating on one of the characteristics of a radio frequency wave. This wave, known as the carrier, will originally be sinusoidal with constant amplitude and frequency. It is these two...
modulation- (electronics) the transmission of a signal by using it to vary a carrier wave; changing the carrier's amplitude or frequency or phase Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc. ...
a Experimental schemes of laser frequency noise measurements, using optical cross-correlation technique or heterodyne beat with the external cavity diode laser (ECDL) locked to a high-Q crystalline resonator using the Pound-Drever-Hall technique. b Schematic in the frequency domain of optical cross-...
spectraldensitiesoftime-dependentspectraldensities, andsmoothedspectraldensitiesarediscussed. Keywords(forinformationretrieval): Amplitude Fluctuations,Cross-SpectralDensity,FrequencyDomain, FrequencyNoise,ModulationNoise,NoiseSpecification andMeasurement,OscillatorNoise,PhaseNoise,Radio ...
United States Patent US2572183 Note: If you have problems viewing the PDF, please make sure you have the latest version of Adobe Acrobat. Back to full textHome Search Services Contact us © 2004-2024 FreePatentsOnline.com. All rights reserved. Privacy Policy & Terms of Use....
Amplitude Modulation Decorrelation For Convolutive Blind Source Separation The problem of blind separation of a convolutive mixture of speech signals is considered. Signal separation is performed in the frequency domain. Based on observations from amplitude spectrograms of speech signals, the notion of amp...
Combined amplitude and frequency-shift-keying (AM-FSK) modulation of a carrier wave by a baseband data signal achieves significant suppression of one of the sidebands to ease the design requirements of filters generally used in the transmission of FSK signals. The significant suppression effect is ...