When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Rayleigh distribution - Wikipedia

    en.wikipedia.org/wiki/Rayleigh_distribution

    In probability theory and statistics, the Rayleigh distribution is a continuous probability distribution for nonnegative-valued random variables. Up to rescaling, it coincides with the chi distribution with two degrees of freedom .

  3. Rayleigh–Ritz method - Wikipedia

    en.wikipedia.org/wiki/Rayleigh–Ritz_method

    In numerical linear algebra, the Rayleigh–Ritz method is commonly [12] applied to approximate an eigenvalue problem = for the matrix of size using a projected matrix of a smaller size <, generated from a given matrix with orthonormal columns. The matrix version of the algorithm is the most simple:

  4. Rayleigh's quotient in vibrations analysis - Wikipedia

    en.wikipedia.org/wiki/Rayleigh's_quotient_in...

    The example shows how the Rayleigh's quotient is capable of getting an accurate estimation of the lowest natural frequency. The practice of using the static displacement vector as a trial vector is valid as the static displacement vector tends to resemble the lowest vibration mode.

  5. Rayleigh fading - Wikipedia

    en.wikipedia.org/wiki/Rayleigh_fading

    Rayleigh fading is a statistical model for the effect of a propagation environment on a radio signal, such as that used by wireless devices.. Rayleigh fading models assume that the magnitude of a signal that has passed through such a transmission medium (also called a communication channel) will vary randomly, or fade, according to a Rayleigh distribution — the radial component of the sum of ...

  6. Distributed acoustic sensing - Wikipedia

    en.wikipedia.org/wiki/Distributed_acoustic_sensing

    In Rayleigh scatter-based distributed fiber optic sensing, a coherent laser pulse is sent along an optic fiber, and scattering sites within the fiber cause the fiber to act as a distributed interferometer with a gauge length approximately equal to the pulse length. The intensity of the reflected light is measured as a function of time after ...

  7. Rayleigh - Wikipedia

    en.wikipedia.org/wiki/Rayleigh

    Rayleigh distribution; Rayleigh fading; Rayleigh law on low-field magnetization; Rayleigh length; Rayleigh number, a dimensionless number for a fluid associated with buoyancy driven flow; Rayleigh quotient; Rayleigh–Ritz method; Plateau–Rayleigh instability explains why a falling stream of fluid breaks up into smaller packets

  8. Chapman–Jouguet condition - Wikipedia

    en.wikipedia.org/wiki/Chapman–Jouguet_condition

    Using the definition of mass flux =, where denotes the flow velocity, we find M 2 = u 2 c 2 = 1 {\displaystyle M_{2}={\frac {u_{2}}{c_{2}}}=1} where M {\displaystyle M} is the Mach number and c {\displaystyle c} is the speed of sound , in other words, downstream flow is sonic with respect to the Chapman-Jouguet wave.

  9. Hyper–Rayleigh scattering - Wikipedia

    en.wikipedia.org/wiki/Hyper–Rayleigh_scattering

    Hyper–Rayleigh scattering optical activity (/ ˈ r eɪ l i / RAY-lee), a form of chiroptical harmonic scattering, is a nonlinear optical physical effect whereby chiral scatterers (such as nanoparticles or molecules) convert light (or other electromagnetic radiation) to higher frequencies via harmonic generation processes, in a way that the ...

  1. Related searches rayleigh noise model in research methodology definition by authors and writers

    rayleigh distribution wikipediarayleigh fading wikipedia
    rayleigh fading modelrayleigh distribution ballistics
    rayleigh ritz method