- constant-amplitude signal
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сигнал с постоянной огибающей
Англо-русский словарь технических терминов. 2005.
constant-amplitude signal
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Constant amplitude zero autocorrelation waveform — A Constant Amplitude Zero AutoCorrelation waveform (abbreviated CAZAC) is a periodic complex valued signal with modulus one and out of phase periodic (cyclic) autocorrelation equal to zero. CAZAC sequences find application in wireless… … Wikipedia
Amplitude — is the magnitude of change in the oscillating variable, with each oscillation, within an oscillating system. For instance, sound waves are oscillations in atmospheric pressure and their amplitudes are proportional to the change in pressure during … Wikipedia
Amplitude-shift keying — (ASK) is a form of modulation that represents digital data as variations in the amplitude of a carrier wave.The amplitude of an analog carrier signal varies in accordance with the bit stream (modulating signal), keeping frequency and phase… … Wikipedia
Amplitude modulation — Passband modulation v · d · e Analog modulation AM · … Wikipedia
Signal-to-noise ratio — For signal to noise ratio in statistics, see Cohen s d. Signal to noise ratio (often abbreviated SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise. It is defined… … Wikipedia
Signal/ bruit — Rapport signal sur bruit Le rapport signal sur bruit désigne la qualité d une transmission d information par rapport aux parasites. Ce concept est utilisé pour désigner un équipement électronique, ce rapport s obtient alors en comparant le signal … Wikipédia en Français
Constant Q transform — In mathematics and signal processing, the Constant Q Transform transforms a data series to the frequency domain, and is related to the Fourier Transform [1]. The transform can be thought of as a series of logarithmically spaced filters, with the… … Wikipedia
Signal theory — See also Signalling theory, a concept in evolutionary biology Signal theory is the theory of the engineering discipline of signal processing. It provides mathematical approaches for use in a wide range of applications. Fields as far apart as… … Wikipedia
amplitude modulation — (AM) The technique of varying the amplitude or wavelength of a carrier wave in direct proportion to the strength of the input signal while maintaining a constant frequency and phase … IT glossary of terms, acronyms and abbreviations
Propagation constant — The propagation constant of an electromagnetic wave is a measure of the change undergone by the amplitude of the wave as it propagates in a given direction. The quantity being measured can be the voltage or current in a circuit or a field vector… … Wikipedia
Quadrature amplitude modulation — (QAM) (Pronounced IPA|kwa:m) is a modulation scheme which conveys data by changing ( modulating ) the amplitude of two carrier waves. These two waves, usually sinusoids, are out of phase with each other by 90° and are thus called quadrature… … Wikipedia
