Radar Cross Section - QinetiQ GRC

Data sheet – Paramarine<br />

<strong>QinetiQ</strong> <strong>GRC</strong><br />

<strong>Radar</strong> <strong>Cross</strong><br />

<strong>Section</strong> (RCS)<br />

<strong>Radar</strong> <strong>Cross</strong> <strong>Section</strong> (A016)<br />

<strong>GRC</strong> has seamlessly integrated an RCS calculator<br />

from CSS of Denmark into Paramarine.<br />

This integrated modelling and RCS analysis<br />

capability gives a baseline capability for assessing<br />

the RCS of ships. CADRCS uses a Physical Optics<br />

approach including shadowed areas through a<br />

combination of graphical and numerical results<br />

enabling a ship to be rapidly analysed from the CAD<br />

definition to identify the RCS hotspots. Solutions to<br />

eradicate hotspots can be determined either using a<br />

simulated RAM coverage or reshaping the structure.<br />

• Integrated <strong>Radar</strong> <strong>Cross</strong> <strong>Section</strong> analysis<br />

• Simple to calculate<br />

• Simple to interpret results<br />

When a corner reflector has been picked-out from<br />

the HRR plot then the user can examine the source<br />

on the ship geometry by bringing up the individual<br />

RCS bitmap picture for a given viewing angle.<br />

The High Resolution Range (HRR) plot that allows<br />

the user to identify the corner reflectors shown on<br />

the high-resolution range profile as curved lines in<br />

red.<br />

High Resolution Range profile and polar plot with<br />

RCS bitmap picture for a single desired viewing angle<br />

High Resolution Range profile highlighting 2 angles<br />

The RCS calculator uses the Paramarine solid model<br />

to perform the calculations. Areas covered in RAM<br />

may easily be modelled as a sheet to cover a corner<br />

reflector. For equipments provided by other<br />

manufactures, Paramarine can import other CAD<br />

geometry such as STL, DXF, STEP, IGES or NATO<br />

format. Once a model has been modified, the<br />

analysis can be run and the results checked to see<br />

that a successful solution has been achieved.<br />

www.grc.qinetiq.com

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Data sheet – Paramarine<br />

<strong>QinetiQ</strong> <strong>GRC</strong><br />

Solid model analysed by RCS<br />

Confidence in the RCS prediction by CADRCS has<br />

been gained through comparisons with ship<br />

measurements. This is backed up by the authors<br />

(Gert Lindqvist, CSS) fifteen years experience at the<br />

Danish Research Establishment (DDRE).<br />

The integration of CADRCS into Paramarine<br />

provides the user with a high quality prediction that<br />

works seamlessly with the vessels design definition.<br />

For further information, please contact:<br />

<strong>QinetiQ</strong> <strong>GRC</strong><br />

Haslar Marine Technology Park<br />

Haslar Road<br />

Gosport<br />

Hampshire PO12 2AG<br />

United Kingdom<br />

Tel +44 (0) 2392 334003<br />

www.grc.qinetiq.com<br />

© Copyright <strong>QinetiQ</strong> <strong>GRC</strong> 2009<br />

www.grc.qinetiq.com