Considering CAD model accuracy for Radar Cross Section and signature calculations of electrically large complex targets

Cilliers, J.E.; Steyn, J.M.; Smit, Jw; Pienaar, Ciara; Pienaar, M.

doi:10.1109/radar.2014.7060313

Cited by 6 publications

(2 citation statements)

References 11 publications

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“…Any polarisation can be described using two basis functions, so using V and H as basis functions any other form of polarisation can be written as a linear combination of these two polarisations. This leads to the concept of a polarisation matrix which is required to describe the arbitrary polarisation which may be received from a target: 11 12…”

Section: A Polarisation Matrixmentioning

confidence: 99%

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On the gain in recognition performance due to the addition of polarisation in an X-band High Range Resolution radar evaluated for F-18 and F-35 targets using asymptotic EM techniques

Cilliers

Smit

Baker³

et al. 2015

2015 IEEE Radar Conference (RadarCon)

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This paper addresses the prediction of the maximum gain in recognition performance of a High Range Resolution (HRR) X-band radar when use is made of the full polarisation matrix, as compared to the linear polarisations. The study was conducted for the F-35 and FA-18F. Use is made of the information theoretic concept of mutual information (MI) to perform this analysis. Returns from the targets were simulated using an asymptotic RCS prediction code. The information content of the two targets is compared for various polarisations.

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Section: A Polarisation Matrixmentioning

confidence: 99%

“…This section describes the targets and waveforms used to generate the results obtained during this investigation, which is an extension to the work reported in [10] and [11].…”

Section: Target and Waveform Setupmentioning

confidence: 99%

On the gain in recognition performance due to the addition of polarisation in an X-band High Range Resolution radar evaluated for F-18 and F-35 targets using asymptotic EM techniques

Cilliers

Smit

Baker³

et al. 2015

2015 IEEE Radar Conference (RadarCon)

Self Cite

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Bistatic RCS measurements in a compact range

Pienaar

Odendaal

Joubert

et al. 2017

2017 International Conference on Electromagnetics in Advanced Applications (ICEAA)

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Predicting Conformal Aperture Gain From 3-D Aperture and Platform Models

Pelham

Hilton

Mellios

et al. 2017

Antennas Wirel. Propag. Lett.

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Conformal antenna arrays are becoming increasingly attractive for aerospace, medical imaging, and 5G communications. While developments in electromagnetic solvers allows accurate conformal array analysis, this study presents a method for predicting the maximum gain pattern for conformal antenna arrays using Standard Triangular/Tessellation Language models for aperture and obstruction geometry. Using raycasting techniques, the aperture model allows the prediction of the maximum gain pattern in the presence of obstructions. The maximum gain patterns are shown for a conformal antenna array integrated into the curved corner of a building, and a conformal antenna array integrated into the wing leading edge of an aircraft. This technique presents an invaluable tool to assess the viability of a conformal aperture on a structure, while allowing for variation of the structure to assess performance implications for the conformal antenna array. This study shows the increase in maximum beam steering angle of 13 • from a purely planar array for the array integrated into a building, and the aeroplane wing leading edge is shown to produce a maximum achievable gain of 41.7 dB, which is 1.7 dB higher than a conventional nose-mounted planar array could be expected to achieve with a greatly increased field of view.

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Considering CAD model accuracy for Radar Cross Section and signature calculations of electrically large complex targets

Cited by 6 publications

References 11 publications

On the gain in recognition performance due to the addition of polarisation in an X-band High Range Resolution radar evaluated for F-18 and F-35 targets using asymptotic EM techniques

On the gain in recognition performance due to the addition of polarisation in an X-band High Range Resolution radar evaluated for F-18 and F-35 targets using asymptotic EM techniques

Bistatic RCS measurements in a compact range

Predicting Conformal Aperture Gain From 3-D Aperture and Platform Models

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