Solving a kind of inverse scattering problem of acoustic waves based on linear sampling method and neural network

A new method for solving the inverse scattering problem for acoustic waves in an inhomogeneous medium

A new method is presented for solving the inverse scattering problem of determining the speed of sound in an inhomogeneous medium from the far-field data. If F (a; k , 6 ) are the far-field data corresponding to an incident plane wave with wavenumber k moving in the direction & and F j , ( f ; k , &) are the far-field data for a ball no containing the inhomogeneous region and satisfying an impe...

The Linear Sampling Method for Solving the Electromagnetic Inverse Scattering Problem

on the effect of linear & non-linear texts on students comprehension and recalling

چکیده ندارد.

A simple method for solving the inverse scattering problem

The inverse scattering problem of determining the boundary impedance from knowledge of the time harmonic incident wave and the far-field pattern of the scattered wave is considered. We use the finite-difference approximation for the Helmholtz equation along with the exact radiation condition for the discrete equation. The approach involves two steps. First, we reduce the problem to a well-posed...

Using Feed-back Neural Network Method for Solving Linear Fredholm Integral Equations of the Second Kind

In this paper a new method for finding the solution of Fredholm integral equation based on hybrid neural networks have presented. The proposed neural net can get a real input vector and calculates its corresponding output vector. Next a learning algorithm based on the gradient descent method has been defined for adjusting the connection weights. Eventually, we have showed this method in compari...