Instantaneous phase and frequency are important concepts in signal processing that occur in the context of the representation and analysis of time-varying...
9 KB (1,511 words) - 19:31, 22 July 2023
in the instantaneous phase of a carrier wave. Phase modulation is one of the two principal forms of angle modulation, together with frequency modulation...
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Frequency modulation (FM) is the encoding of information in a carrier wave by varying the instantaneous frequency of the wave. The technology is used...
31 KB (3,959 words) - 16:11, 4 December 2024
engineering, and statistics, the frequency domain refers to the analysis of mathematical functions or signals with respect to frequency (and possibly phase), rather...
10 KB (1,193 words) - 14:19, 27 December 2024
Voltage-controlled oscillator (redirect from Voltage/frequency converter)
whose oscillation frequency is controlled by a voltage input. The applied input voltage determines the instantaneous oscillation frequency. Consequently,...
16 KB (1,884 words) - 20:50, 16 July 2024
a single phase system reaches a peak value twice in each cycle, the instantaneous power is not constant. Standard frequencies of single-phase power systems...
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as ω = dθ/dt, the instantaneous rate of change of the angular displacement, θ, with respect to time, t. In SI units, angular frequency is normally presented...
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absolute phase in a particular field of application. Absolute phase AC phase In-phase and quadrature components Instantaneous phase Lissajous curve Phase cancellation...
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continuous phase, as the modulated waveform cuts instantaneously between two sinusoids with different frequencies. As the name suggests, the phase of a CPFSK...
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advantages of symmetric systems. In a three-phase system feeding a balanced and linear load, the sum of the instantaneous currents of the three conductors is...
56 KB (6,591 words) - 04:54, 3 January 2025
A phase detector or phase comparator is a frequency mixer, analog multiplier or logic circuit that generates a signal which represents the difference...
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Speech processing (section Phase-aware processing)
derivatives by time (instantaneous frequency) and frequency (group delay), smoothing of phase across frequency. Joined amplitude and phase estimators can recover...
13 KB (1,440 words) - 03:13, 26 November 2024
Analytic signal (category Time–frequency analysis)
}}\omega (t).} The instantaneous amplitude, and the instantaneous phase and frequency are in some applications used to measure and detect local features...
16 KB (2,675 words) - 14:49, 4 June 2024
rotation sequence L1 - L2 - L3, the time-varying instantaneous voltages can be calculated for each phase A,C,B respectively by: V L 1 − N = V P sin (...
14 KB (2,554 words) - 10:43, 26 August 2024
Angle modulation (section Frequency modulation)
sinusoidal carrier wave and the cosine-term is the carrier at its angular frequency ω {\displaystyle \omega } , and the instantaneous phase deviation ϕ ( t )...
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signal. Keeping the input and output phase in lockstep also implies keeping the input and output frequencies the same, thus a phase-locked loop can also track...
52 KB (7,669 words) - 01:08, 31 December 2024
the frequency with the digital data symbols, "instantaneously" changing the frequency at the beginning of each symbol period, Gaussian frequency-shift...
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indication of the instantaneous phase and strength of the radio signal. Since radio signals consist of waves, the signal varies in phase at a very rapid...
25 KB (3,675 words) - 20:52, 13 December 2024
Neutral Instantaneous Breaker Failure 50P - Phase Instantaneous Overcurrent 50SG - Sensitive Ground Instantaneous Overcurrent 50SP - Split Phase Instantaneous...
13 KB (1,755 words) - 16:04, 20 September 2024
R., Tchamitchian, P., and Torrksani, B. (1992). "Asymptotic wavelet and Gabor analysis: extraction of instantaneous frequencies". IEEE Transactions on...
7 KB (925 words) - 07:41, 28 June 2024
TAF-DPS is able to address the problems of arbitrary-frequency-generation and instantaneous-frequency-switching more effectively. The first circuit technology...
25 KB (3,011 words) - 04:49, 10 December 2024
Sine wave (redirect from Frequency, periodicity, amplitude for sinusoids)
sine waves of various frequencies, relative phases, and magnitudes. When any two sine waves of the same frequency (but arbitrary phase) are linearly combined...
10 KB (1,332 words) - 20:42, 20 November 2024
dispersion forces (LDF, also known as dispersion forces, London forces, instantaneous dipole–induced dipole forces, fluctuating induced dipole bonds or loosely...
13 KB (1,613 words) - 21:13, 15 June 2024
AC power (section Multiple frequency systems)
In an electric circuit, instantaneous power is the time rate of flow of energy past a given point of the circuit. In alternating current circuits, energy...
26 KB (4,148 words) - 04:54, 14 December 2024
with frequency. It must have a maximum phase shift of more than 180 degrees at high frequencies so the phase shift at the desired oscillation frequency can...
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modulators, sound synthesizers and as part of a digital phase-locked loop. A basic Direct Digital Synthesizer consists of a frequency reference (often a crystal...
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Nonlinear optics (redirect from Frequency conversion (laser light))
"instantaneous". Energy and momentum are conserved in the optical field, making phase matching important and polarization-dependent. Parametric and "instantaneous"...
53 KB (6,736 words) - 22:47, 7 June 2024
group delay and phase delay are functions that describe in different ways the delay times experienced by a signal’s various sinuoidal frequency components...
38 KB (5,780 words) - 13:15, 9 December 2024
{\displaystyle \phi (t)} is the instantaneous phase of a signal. We can know the instantaneous frequency from the time–frequency plane directly if the image...
21 KB (3,667 words) - 01:16, 28 November 2024
stable and became standard practice. Digital FM synthesis (equivalent to phase modulation using the time integration of instantaneous frequency) was the...
26 KB (3,196 words) - 07:16, 27 December 2024