• Thumbnail for Instantaneous phase and frequency
    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...
    6 KB (673 words) - 10:10, 25 June 2024
  • Thumbnail for Frequency modulation
    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
  • Thumbnail for Frequency domain
    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
  • Thumbnail for Voltage-controlled oscillator
    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
  • Thumbnail for Single-phase electric power
    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...
    6 KB (745 words) - 06:12, 4 August 2024
  • Thumbnail for Angular frequency
    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...
    9 KB (862 words) - 06:17, 16 December 2024
  • Thumbnail for Phase (waves)
    absolute phase in a particular field of application. Absolute phase AC phase In-phase and quadrature components Instantaneous phase Lissajous curve Phase cancellation...
    19 KB (2,909 words) - 03:55, 17 December 2024
  • continuous phase, as the modulated waveform cuts instantaneously between two sinusoids with different frequencies. As the name suggests, the phase of a CPFSK...
    6 KB (939 words) - 15:17, 31 August 2024
  • Thumbnail for Three-phase electric power
    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
  • Thumbnail for Phase detector
    A phase detector or phase comparator is a frequency mixer, analog multiplier or logic circuit that generates a signal which represents the difference...
    13 KB (1,759 words) - 20:18, 19 December 2024
  • 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
  • Thumbnail for Mathematics of three-phase electric power
    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
  • sinusoidal carrier wave and the cosine-term is the carrier at its angular frequency ω {\displaystyle \omega } , and the instantaneous phase deviation ϕ ( t )...
    6 KB (835 words) - 22:33, 3 November 2024
  • 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
  • Thumbnail for Frequency-shift keying
    the frequency with the digital data symbols, "instantaneously" changing the frequency at the beginning of each symbol period, Gaussian frequency-shift...
    16 KB (1,908 words) - 03:39, 31 July 2024
  • Thumbnail for High-frequency direction finding
    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
  • Thumbnail for Sine wave
    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
  • Thumbnail for London dispersion force
    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
  • Thumbnail for AC power
    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...
    6 KB (1,056 words) - 23:34, 23 May 2024
  • Thumbnail for Direct digital synthesis
    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...
    8 KB (872 words) - 04:34, 9 May 2024
  • Thumbnail for Nonlinear optics
    "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
  • Thumbnail for Frequency modulation synthesis
    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