Acoustic Obstacles Inverse Scattering Problem, Numerical Methods

The inverse acoustic scattering problem is a typical inverse problem.lt has bright future in application on radar and sonar,ect.In this paper,some problems of inverse obstacle scattering theory are investigated and some satisfactory conclusions are reached. Details are as follows:l.Approxiamation method is given for linear moment problems. Numerical examples are given showing the practicality of the method.2.The direct scattering problem is solved by the single layer approximation.3.The acoustic wave impedance coefficient is recovered from the incomplete data of the far field pattern.