WHAT does DOVA do?
Realistic CAD-generated models are used in computations
MORE about THEORY behind DOVA
The Propagation Path Finder subsystem is a collection of highly sophisticated and tightly linked geometric algorithms responsible for reading-in the platform geometry, antenna data, and pattern cut specifications, and producing the required propagation paths. The surface of the scatterer acts as an obstacle to propagation and when building the propagation paths the algorithms take into account the geometry of the platform and its reflective and diffracting properties. In addition to determining the required propagation paths, our algorithms classify spatial and surface path segments, edge diffraction and reflection points, and compute all geometric quantities required for performing diffraction analysis. This includes calculating tangents, normals, geodesics, various curvatures, torsion, Fock parameter, and divergence factor.
The task of building propagation paths for a complex structure such as an aircraft, is a difficult task in itself and in the past its solution often relied on simplified representation of the platform as a collection of a small number of simple shapes such as cylinders, ellipsoids, cones, and flat plates. However, comparisons of results based on simplified platform representation with measured data showed that large errors may result from inaccurate representation of the platform geometry.
On the other hand, wide availability of high fidelity CAD-generated models of numerous military and civilian platforms makes it possible to improve significantly the accuracy of solutions to the radiation and coupling problems, provided there exist computational algorithms capable of performing required calculations on such models.
It is precisely these tasks that DOVA system
is designed for.
Read more about Antennas and
Platform
Modeling