Results 231 to 240 of about 606,123 (288)
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Proceedings of the IEEE, 1965
The use of the scattering matrix leads to a formulation of radar reflectivity that is independent of radar polarization, target range, and target rotation about the line of sight. The resulting formulation is applied to the problem of object recognition in free space. Experimental results for right circular cones are presented.
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The use of the scattering matrix leads to a formulation of radar reflectivity that is independent of radar polarization, target range, and target rotation about the line of sight. The resulting formulation is applied to the problem of object recognition in free space. Experimental results for right circular cones are presented.
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Derivative Matrix and Scattering Matrix
1993R.Kronig [1] was the first to point out, on the basis of his and Kramers’ [2] work, that the principle of causality must entail some properties of the collision and scattering matrices. Starting from Kronig’s suggestion, Schutzer and Tiomno [3] gave, for non relativistic particles, a derivation of the well known theorem [4] that the poles of the ...
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Scattering matrix measurements
Optics & Laser Technology, 1993Abstract A technique is proposed to measure the components of the 2 x 2 scattering matrix of a target. Both relative amplitudes and phase are measured. Absolute amplitudes require irradiance measurements involving a reference scatterer to calibrate the incidence irradiance.
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Scattering matrix analysis of anisotropic electron scattering
Physics Letters A, 1967Abstract We present formulae for the momentum transfer cross section of an elastic particle incident perpendicular and parallel respectively to the axis of symmetry of a point dipole potential.
A.D. Boardman, A.D. Hill, S. Sampanthar
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1989
The scattering matrix can be used to describe a large class of passive microwave components. In many cases, it can provide to a complete understanding of microwave devices. Thus, one may avoid the complex analysis of the structure via the technique of boundary value solution.
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The scattering matrix can be used to describe a large class of passive microwave components. In many cases, it can provide to a complete understanding of microwave devices. Thus, one may avoid the complex analysis of the structure via the technique of boundary value solution.
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Structure of the Scattering Matrix
Physical Review, 1955It is shown that in field theory the structure of the scattering matrix for a certain variety of processes, such as those between a meson and a nucleon, a photon and a charged particle, etc., can be analyzed making use of relativistic invariance and microscopic causality.
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Scatter-matrix approach to quantum transport
Physical Review B, 1987In this paper, we model the transport of electrons in a two-dimensional resistor as regions of free propagation with occasional elastic scattering by a random array of scatterers. The overall transmission probability is calculated by cascading the scatter matrices of individual scatterers.
, Datta, , Cahay, , McLennan
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Stokes scattering matrix for human skin
Applied Optics, 2012We use a layered model of normal human skin based on size distributions of polydisperse spherical particles and their complex refractive indices to compute the Stokes scattering matrix at wavelengths in the visible spectral band. The elements of the Stokes scattering matrix are required in a polarized radiative transfer code for a coupled air-tissue ...
Anak, Bhandari +5 more
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Scattering Matrix of Radioactive States
Physical Review, 1940The method of complex eigenvalues is generalized to many dimensional problems by means of the scattering matrix. It is essential to allow for the existence of a background matrix on which the resonance is superposed. The "radioactive state" (i.e., the state with complex energy for which waves in all disintegration channels are outgoing) determines the ...
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Scattering matrix approach to STW resonators
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2002The scattering matrix method was used for the analysis of surface transverse wave (STW) resonators on quartz. An expression for the transfer function of the resonators with different numbers of electrodes in the reflectors was derived. It was found that, for a proper ratio of these numbers, the spurious signal level below the resonance frequency can be
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