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In 1922, according to Nahin, John Renshaw Carson defined the instantaneous frequency of a signal "as the time derivative of the signal's phase angle." In frequency modulation, instantaneous frequency describes the frequency varying above and below the carrier frequency, at the audio tone frequency.
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Explore the main themes, entities and connections around Instantaneous phase and frequency. Start with the topic map, then use the sections below for research and deeper semantic analysis.
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phase instantaneous frequency complex function representation signal also time 2π unwrapped real-valued sa otherwise continuous arg defined wrapped argument called
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