Modeling and Analysis of Sea Clutter by a Novel Numerical Method

Date

2019-07-24

Author

Özgün, Özlem
Kuzuoğlu, Mustafa

Metadata

Show full item record

Item Usage Stats

216
views

0
downloads

The statistical behavior of sea clutter is obtained by employing a numerical method, which is called Finite Element Domain Decomposition (FEDD) method, in conjunction with the Monte Carlo technique. In the FEDD method, the computational domain is divided into a number of subdomains, and hence, the computational load decreases. The results of Monte Carlo simulations are compared with the results of some empirical approaches and measurement data for different polarizations and grazing angles.

URI

https://hdl.handle.net/11511/85511

Conference Name

The 7th Advanced Electromagnetics Symposium (AES), (24 - 26 Temmuz 2019)

Collections

Department of Electrical and Electronics Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Physics-based modeling of sea clutter phenomenon by a full-wave numerical solver ÖZGÜN, ÖZLEM; Kuzuoğlu, Mustafa (2022-02-01) The sea clutter phenomenon is investigated from a different perspective by using the finite element domain decomposition (FEDD) method, which is a full-wave numerical method based on the decomposition of the problem into sub-problems with the help of the locally-conformal perfectly matched layer (LC-PML) approach. The numerical model developed in this work provides the means to investigate the sea clutter phenomenon by a full-wave Maxwell solver, although the electrical size of computational domain is formi...
Least-squares finite element solution of Euler equations with H-type mesh refinement and coarsening on triangular elements AKARGUN, Hayri Yigit; Sert, Cüneyt (2014-01-01) Purpose - The purpose of this paper is to demonstrate successful use of least-squares finite element method (LSFEM) with h-type mesh refinement and coarsening for the solution of two-dimensional, inviscid, compressible flows.
Numerical investigation of solidification Alrmah, Masoud; Dursunkaya, Zafer; Department of Mechanical Engineering (2005) Finite element solution of solidification process in 2-D Cartesian and axisymmetric geometries is investigated. The use of finite element may result in spurious increase of temperature in the field and the selection of the mushy zone range when used as a numerical tool along with the selection of the mesh size results in large errors in the predicted solidification time. The approach works best for problems where the mushy zone range is finite and the thermal conductivities of both phases are high.
Computation of multi-passage cascade flows with overset and deforming grids Tuncer, İsmail Hakkı (null; 1997-12-01) An overset grid method is applied to the solution of single and multi-passage cascade flows with a compressible Navier-Stokes solver. C-type grids around individual blades are overset onto a Cartesian background grid. Overset grids are allowed to move in time relative to each other as prescribed by the oscillatory plunging motion. The overset grid method uses a simple, robust numerical algorithm to localize moving boundary points and to interpolate solution variables across intergrid boundaries. Computation...
Iterative leap-field domain decomposition method: a domain decomposition finite element algorithm for 3D electromagnetic boundary value problems Ozgun, O.; Kuzuoğlu, Mustafa (Institution of Engineering and Technology (IET), 2010-04-01) The authors introduce the iterative leap-field domain decomposition method that is tailored to the finite element method, by combining the concept of domain decomposition and the Huygens' Principle. In this method, a large-scale electromagnetic boundary value problem is partitioned into a number of suitably-defined 'small' and manageable subproblems whose solutions are assembled to obtain the global solution. The main idea of the method is the iterative application of the Huygens' Principle to the fields ra...

Citation Formats

Ö. Özgün and M. Kuzuoğlu, “Modeling and Analysis of Sea Clutter by a Novel Numerical Method,” presented at the The 7th Advanced Electromagnetics Symposium (AES), (24 - 26 Temmuz 2019), Lizbon, Portekiz, 2019, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/85511.