• Thumbnail for Envelope (waves)
    The figure illustrates a modulated sine wave varying between an upper envelope and a lower envelope. The envelope function may be a function of time, space...
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  • may be synchronized with another oscillator by oscillator sync. Envelope (waves) Envelope detector Pinch, Trevor; Trocco, Frank (2004). Analog Days: The...
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  • Thumbnail for Group velocity
    Group velocity (category Wave mechanics)
    velocity of a wave is the velocity with which the overall envelope shape of the wave's amplitudes—known as the modulation or envelope of the wave—propagates...
    25 KB (3,501 words) - 11:31, 17 September 2024
  • reliably detect an object Envelope (waves), a curve outlining the peak values of an oscillating waveform or signal Envelope detector, an electronic circuit...
    2 KB (324 words) - 12:27, 18 October 2023
  • Thumbnail for Wave
    of mechanical waves are seismic waves, gravity waves, surface waves and string vibrations. In an electromagnetic wave (such as light), coupling between...
    61 KB (7,802 words) - 10:47, 21 November 2024
  • Thumbnail for Wavelength
    Wavelength (redirect from Wave length)
    modulated waves, and to the sinusoidal envelopes of modulated waves or waves formed by interference of several sinusoids. Assuming a sinusoidal wave moving...
    35 KB (4,288 words) - 23:06, 15 November 2024
  • Thumbnail for Wave packet
    a wave packet (also known as a wave train or wave group) is a short burst of localized wave action that travels as a unit, outlined by an envelope. A...
    39 KB (5,916 words) - 08:18, 18 November 2024
  • Thumbnail for Beat (acoustics)
    Beat (acoustics) (redirect from Beat wave)
    unit-amplitude sine waves can be expressed as a carrier wave of frequency ⁠f1 + f2/2⁠ whose amplitude is modulated by an envelope wave of frequency ⁠f1 -...
    13 KB (1,469 words) - 20:28, 7 November 2024
  • Thumbnail for Phase velocity
    Phase velocity (category Wave mechanics)
    have a product of two waves: an envelope wave formed by f1 and a carrier wave formed by f2 . We call the velocity of the envelope wave the group velocity...
    9 KB (1,075 words) - 11:32, 17 September 2024
  • Thumbnail for Envelope detector
    voltage-shifted version of the input's upper envelope. Between the circuit's input and output is a diode that performs half-wave rectification, allowing substantial...
    8 KB (1,001 words) - 17:54, 1 November 2024
  • Thumbnail for Nonlinear Schrödinger equation
    gravity waves on the surface of deep inviscid (zero-viscosity) water; the Langmuir waves in hot plasmas; the propagation of plane-diffracted wave beams...
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  • Thumbnail for Common envelope
    of gravitational waves and Type Ia supernovae. Predictions of the outcome of common envelope evolution are uncertain. A common envelope is sometimes confused...
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  • This is a list of wave topics. Contents:  Top 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z...
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  • amplitude envelope is always higher than that of a constant envelope modulation. Constant-weight code Envelope (waves) "Advantages of Constant Envelope Modulation"...
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  • sometimes called the amplitude. For symmetric periodic waves, like sine waves or triangle waves, peak amplitude and semi amplitude are the same. In audio...
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  • Thumbnail for Rogue wave
    Rogue waves (also known as freak waves or killer waves) are large and unpredictable surface waves that can be extremely dangerous to ships and isolated...
    112 KB (12,466 words) - 17:14, 24 November 2024
  • A back-of-the-envelope calculation is a rough calculation, typically jotted down on any available scrap of paper such as an envelope. It is more than a...
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  • quantum-mechanical wavefunction. These electron waves are not ordinary sinusoidal waves, but they do have a kind of envelope function which is sinusoidal, and the...
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  • Thumbnail for Limit inferior and limit superior
    {\displaystyle C} respectively. Essential infimum and essential supremum Envelope (waves) One-sided limit Dini derivatives Set-theoretic limit Rudin, W. (1976)...
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  • Thumbnail for Polarization (waves)
    light and radio waves, gravitational waves, and transverse sound waves (shear waves) in solids. An electromagnetic wave such as light consists of a coupled...
    73 KB (9,405 words) - 18:21, 24 October 2024
  • Thumbnail for Envelope (mathematics)
    In geometry, an envelope of a planar family of curves is a curve that is tangent to each member of the family at some point, and these points of tangency...
    27 KB (4,489 words) - 09:11, 13 May 2024
  • propagation velocity for the envelope of wave groups and often of wave energy, different from the phase velocity for dispersive waves Signal velocity, the velocity...
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  • water waves generally refers to frequency dispersion, which means that waves of different wavelengths travel at different phase speeds. Water waves, in...
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  • Thumbnail for Synthesizer
    altered by components such as filters, which cut or boost frequencies; envelopes, which control articulation, or how notes begin and end; and low-frequency...
    53 KB (5,199 words) - 11:23, 21 November 2024
  • Thumbnail for Frequency comb
    the wave envelope of an optical pulse can be seen on the right. Each line is displaced from a harmonic of the repetition rate by the carrier–envelope offset...
    35 KB (4,245 words) - 18:21, 7 July 2024
  • varying envelope approximation (SVEA, sometimes also called slowly varying asymmetric approximation or SVAA) is the assumption that the envelope of a forward-travelling...
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  • and the combined envelope/TFS metric is generally more accurate than a metric that uses envelope modulation alone. Envelope (waves) Place theory Temporal...
    144 KB (18,104 words) - 07:51, 10 May 2024
  • Thumbnail for Sound
    Sound (redirect from Sound waves)
    pressure, these represent sound waves with wavelengths of 17 meters (56 ft) to 1.7 centimeters (0.67 in). Sound waves above 20 kHz are known as ultrasound...
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  • This article summarizes equations in the theory of waves. A wave can be longitudinal where the oscillations are parallel (or antiparallel) to the propagation...
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  • Thumbnail for Amplitude modulation
    continuous wave radio-frequency signal has its amplitude modulated by an audio waveform before transmission. The message signal determines the envelope of the...
    35 KB (4,575 words) - 15:17, 3 November 2024