POLARIZATION-DEPENDENCE IN THE PERFORMANCE OF A GROUND PLANE CROSS SECTION RANGE

1962 ◽  
Author(s):  
ROBERT J. WOHLERS
Keyword(s):  
Cross Section ◽  
Ground Plane ◽  
Polarization Dependence ◽  
Plane Cross Section

Polarization Dependence of the Integrated Bremsstrahlung Cross Section

1953 ◽  
Vol 90 (6) ◽  
pp. 1030-1035 ◽  
Author(s):  
R. L. Gluckstern ◽  
M. H. Hull
Keyword(s):  
Cross Section ◽  
Polarization Dependence

scholarly journals A 1D nonlinear TWB model accounting for in plane cross-section deformation

2016 ◽  
Vol 94-95 ◽  
pp. 170-178 ◽  
Author(s):  
Stefano Gabriele ◽  
Nicola Rizzi ◽  
Valerio Varano
Keyword(s):  
Cross Section ◽  
Plane Cross Section

Radar Cross Section Reduction of a Cavity in the Ground Plane

2014 ◽  
Vol 15 (4) ◽  
pp. 895-910 ◽  
Author(s):  
Gang Bao ◽  
Jun Lai
Keyword(s):  
Cross Section ◽  
Ground Plane ◽  
Scattering Problem ◽  
Radar Cross Section ◽  
Optimization Scheme ◽  
Artificial Boundary ◽  
Radar Absorbing Material ◽  
Adjoint State ◽  
Absorbing Material ◽  
Adjoint State Method

AbstractThis paper investigates the reduction of backscatter radar cross section (RCS) for a rectangular cavity embedded in the ground plane. The bottom of the cavity is coated by a thin, multilayered radar absorbing material (RAM) with possibly different permittivities. The objective is to minimize the backscatter RCS by the incidence of a plane wave over a single or a set of incident angles. By formulating the scattering problem as a Helmholtz equation with artificial boundary condition, the gradient with respect to the material permittivities is determined efficiently by the adjoint state method, which is integrated into a nonlinear optimization scheme. Numerical example shows the RCS may be significantly reduced.

Strain Analysis and Experimental Research of the Composite Beams

2013 ◽  
Vol 438-439 ◽  
pp. 654-657
Author(s):  
Ai Hong Han
Keyword(s):  
Comparative Analysis ◽  
Cross Section ◽  
Experimental Research ◽  
Strain Analysis ◽  
Composite Beams ◽  
Strain Measurements ◽  
Plane Cross Section ◽  
Strain Data ◽  
Steel Composite

Through the comparative analysis of theoretical and experiment results, this paper proved that the formulas for solving the strain of composite beams are correct, and the strain is consistent with the plane cross-section assumption. In order to reduce the influence of friction, resin membranes were placed in steel-steel composite beams and aluminum-steel composite beams. The strain measurements were performed on composite beams with and without adding resin, the influence of friction between the composite beams is analyzed by the comparison of strain data,.

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