Results 201 to 210 of about 108,591 (262)

Subsets of reflection coefficients

ICASSP '86. IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005
Subset models of autoregressive reflection coefficients have a number of non-zero reflections in the subset while the other reflections are zero. Speech analysis and seismic exploration are areas of applications where true subset processes may be found.
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Invariants of the Reflection Coefficient

Optics and Spectroscopy, 2020
The reflection coefficient of a plane monochromatic wave from a three-layer structure is analyzed in detail in the case in which the wave is linearly polarized in the plane of incidence. The inverse ellipsometry problem for a three-layer structure is solved.
L. A. Fedyukhin, A. V. Gorchakov, E. A. Kolosovsky   +2 more
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A reflection coefficient bridge

IEEE Transactions on Instrumentation and Measurement, 1987
The design of an unbalanced Wheatstone bridge is presented. The bridge measures the reflection coefficient of unknown impedances relative to an arbitrary reference level. A experimental unit was designed for a 25-Ω reference level. It measured high isolation with a 25-Ω load; the magnitude of the reflection coefficient with a short-circuit load ...
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The Reflection Coefficient of Mercury

Journal of Applied Physics, 1938
Two new methods for measuring the reflection coefficient of mercury atoms from a mercury surface are described. In the first, a micromanometer gives both the change in pressure on the surface, and the subsequent rate of evaporation, when a mercury pool is exposed to an opposing liquid air cooled condensing target.
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Reflection and Transmission Coefficients for a Diffused Interface

Applied Optics, 1968
The reflection and transmission coefficients for an inhomogeneous layer separating two semiinfinite homogeneous media are examined. Two different cases are investigated, each with a different permittivity profile for the inhomogeneous layer. Detailed examination of these coefficients reveals the relation of their magnitude and phase to the wavelength ...
J, Nemec, G, Tyras
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Regression surfaces for estimated reflection coefficients

ICASSP-88., International Conference on Acoustics, Speech, and Signal Processing, 2003
The distributions of the estimates of reflection coefficients depart considerably from normality, even using moderately long data records. As a result of this, the interdependencies among those estimates are nonlinear. The authors examine the nature of those nonlinear relationships by studying the regression surfaces of the estimated reflection ...
Mariano García Otero, José R. Casar Corredera   +1 more
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Measuring the reflection coefficient for ultrasonic interfaces

Ultrasonics, 1972
Abstract The lack of quantitative information about the properties of the tissue interface is one shortcoming in imaging biological structures with the echo-ranging ultrasonic technique. A multitransducer configuration offers a method for experimentally evaluating a reflection coefficient for arbitrarily oriented interfaces.
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Diffuse reflection coefficient of a stratified sea

Applied Optics, 1999
A differential equation of a Riccati type for the diffuse reflection coefficient of a stratified sea is proposed. For a homogeneous sea with arbitrary inherent optical properties this equation is solved analytically. For an inhomogeneous sea it is solved approximately for any arbitrary stratification.
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Coefficients of reflection by “weak” boundaries of separation

Journal of Soviet Mathematics, 1978
The coefficients of reflection from a surface on which the n-th derivative of the velocity suffers a discontinuity are constructed in the ray approximation.
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Reflection Coefficients and Poles

1990
Let V(x) be a real Schrodinger potential with no bound-states. Deift and Trubowitz [1] showed that, if V(x) satisfies the condition $$\int_{{ - \infty }}^{\infty } {dx[1 + {{x}^{2}}]|V(x)| < \infty ,}$$ (1) then solutions of the Schrodinger equation, $$\left\{ { - {{{\left[ {\frac{d}{{dx}}} \right]}}^{2}} + V(x)} \right\}\psi \pm (x ...
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