in this paper, we deal with the problem of adaptive coherent signal detection in gaussian interference (clutter plus noise) for surveillance pulse radars. some of the adaptive radar detectors exploit the ar model for clutter. most of these detectors have been obtained using the glr test. this test relies on the maximum likelihood estimation whose accuracy depends on the number of data. whereas,...

The primary goal of this work is to introduce two adaptive Steffensen-like methods with memory of the highest efficiency indices. In the existing methods, to improve the convergence order applied to memory concept, the focus has only been on the current and previous iteration. However, it is possible to improve the accelerators. Therefore, we achieve superior convergence orders and obtain as hi...

The efficient generation of meshes is an important step in the numerical solution of various problems in physics and engineering. Here we are interested in situations where global mesh quality and coupling to the physical solution is important. Hence we consider PDE based mesh generation and present a method for the construction of adaptive meshes in two spatial dimensions using domain decompos...