We propose a novel method to calculate the electromagnetic (EM) wave propagation from low-earth orbit satellite (LEO) ground station based on physical optics (PO), ray tracing technique, and geometric (GO) considering interpolated atmospheric environments. Our includes reflector antenna analysis using PO, interpolation of meteorological data PCHIP Kriging interpolation, transmission geometrical...

In the study, an efficient bi-iterative physical optics (PO) electromagnetic model is used to analyze composite scattering from a PEC object above two-layered rough soil surfaces for first time. The PO method applied calculate direct scattered fields and upper layer surface deal with mutual coupling effect between surfaces. During process, strategy considered solve interaction lower We assume 2...

UNCLONABLE KEY SEBASTIANUS A. GOORDEN, MARCEL HORSTMANN, ALLARD P. MOSK, BORIS ŠKORIĆ, AND PEPIJN W.H. PINKSE Complex Photonic Systems (COPS), MESA+ Institute for Nanotechnology, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands Laser Physics and Nonlinear Optics (LPNO), MESA+ Institute for Nanotechnology, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands Ein...

Electromagnetic (EM) scattering from subsurface unexploded ordnance (UXO) is investigated both theoretically and experimentally. Three EM models are considered: the multilevel fast multipole algorithm (MLFMA), the method of moments (MoM), and physical optics (PO). The relative accuracy of these models is compared for several scattering scenarios. Moreover, the model results are compared to data...

Higher-order, large-domain electromagnetic simulations are presented based on the finite element method (FEM), method of moments (MoM), and physical optics (PO). The simulations combine higher order geometrical modeling and higher order field/current modeling, which is referred to as double-higher-order modeling. The examples demonstrate that accurate and efficient FEM, MoM, and PO simulations ...

The potential of estimating soil moisture from fully polarimetric satellite X-band SAR data is analysed for the first time. The Physical Optics model has been combined with an azimuthally rotation distribution, forming a socalled Extend-PO-model (X-PO), for the scattering process representation which includes a cross-polarized component. In addition, the eigen-based decomposition approach has b...

We generate simulated (I)SAR imagery of a number of ground vehicles with the program Spectre [1] and validate these against turntable (I)SAR imagery from trials. Spectre employs a Physical Optics / Geometrical Optics (PO-GO) or shooting-bouncing-ray high frequency physics model. This approach is employed as standard for high-frequency electromagnetic scattering calculations from large complex b...

Radar Cross Section (RCS) is one of the most considerable parameters for ship stealth design. As modern ships are larger than their predecessors, RCS must be managed at each design stage for its reduction. For predicting RCS of ship, Radar Cross Section Analysis Program (RACSAN) based on Kirchhoff approximation in high frequency range has been developed. This program can present RCS including m...

In this paper, a novel algorithm for computing Physical Optics (PO) integrals is introduced. In this method, the integration problem is converted to an inverse problem by Levin’s integration algorithm. Furthermore, the singularities, that are possible to occur in the applications of Levin’s method, are handled by employing trapezoidal rule together with Levin’s method. Finally, the computationa...

The present contribution deals with a hybrid method combining the method of moments (MM) with the physical optics (PO) approximation and asymptotic currents based on Fock theory. This current based hybrid approach is employed to deal with arbitrarily shaped monopole antennas located on perfectly conducting, curved convex surfaces. Some examples, e.g. an inverted–L antenna mounted on an open tru...