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This study has investigated a cylindrical DRA for improvement of performance in terms of bandwidth and gain by maintaining high co-pol to cross-pol ratio.
The E-plane co-pol patterns for R = 0.5[[lambda].sub.0], 1[[lambda].sub.0] and 1.5[[lambda].sub.0] are shown in Figure 8.
The sum port voltages obtained are used for the computation of co-pol and cross-pol transmission parameters of the radome.
The EM performance parameters (Co-pol power transmission, X-pol transmission, boresight error (BSE) etc.) of antenna-radome system are computed for antenna scan angles corresponding to window regions [R.sub.1], [R.sub.2], and [R.sub.3] based on 3D Ray-tracing procedure in conjunction with Aperture Integration method.
The co-pol power transmission is low for Inhomogeneous Dielectric Radome as compared to that of Monolithic Radome.
The task remains to resolve the incident and scattered fields into components parallel and perpendicular to the lines and thereby calculate the co-pol and cross-pol elements of the scattering matrix.
(The HH and HV RCSs were also recorded, but they are not shown since they were close copies of the VV and VH data shown in the chart.) When [Tau] = 45[degrees], cos2[Tau] is equal to zero and sin2[Tau] is equal to unity, hence the co-pol returns of Equations 8 and 9 become identical.
Although both expressions obviously demand knowledge of the dielectric constant of the fishing line, the dielectric constant was measured by dividing the co-pol returns by the cross-pol returns.
Co-pol and X-pol gain patterns of the Vivaldi antennas (with and without cavity) at 3 GHz, including the E-plane ([phi] = 0[degrees]) and H-plane ([phi] = 90[degrees]).
Co-pol and X-pol gain patterns of the Vivaldi antennas (with and without cavity) at 7 GHz, including the E-plane ([phi] = 0[degrees]) and H-plane ([phi] = 90[degrees]).
By comparing HH and HV images or VV and VH images, one can find that the scattering from connections of compartments in cross-pol case is much weaker than that in co-pol case.
Ground moving target imaging and scattering experiments were carried out on a light railway train by a ground Ku-band radar system with two receiving channels, and both coherent and incoherent scattering results were obtained, as well as co-pol and cross-pol interferometric results.
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- co-phenotrope (UK)
- Co-Pilot Gunner
- Co-Planar Strip
- Co-Planar Waveguide
- Co-Polar Attenuation
- Co-Polarized Monopulse
- Co-Principal Author
- Co-Principal Author
- Co-Principal Investigator
- Co-Processing Node Architecture for Parallel Systems
- Co-recursive acronym