Abstract: A theoretical model for reconstruction and prediction of acoustic scattering fields is built based on the distributed source boundary point method (DSBPM).In this method, the transform matrices of acoustic quantities are formed with particular matrices at boundary nodes, hologram measurement points, reconstruction points and prediction points generated by the imaginary point sources, which is localized on the normal direction of the boundary nodes and a distance away from the analysis domain.Compared with NAH based on the boundary element method (BEM), variable interpolation, numerical calculation and disposal of singular integral are avoided in this method.It has advantages of fast calculation, high precision, good stability, simplicity and clarity in computation.

Key words: scattering field, boundary point, acoustic holography, distributed source