Elastic seabed sound source motion parameter estimation system and estimation method based on sound field interference phenomenon

The invention provides an elastic seabed sound source motion parameter estimation system and estimation method based on a sound field interference phenomenon. Firstly, normal wave modal characteristics and interference structure characteristics of the elastic submarine waveguide are analyzed, then according to the analyzed interference structure characteristics, two-dimensional Fourier transform of a time-frequency interference structure is carried out, a spectral density peak value is extracted, and finally, based on the normal wave modal characteristics of the elastic submarine waveguide obtained through analysis and spectral density peak value point coordinates obtained through calculation, the spectral density peak value point coordinates of the elastic submarine waveguide are calculated. The estimation of sound source motion parameters is completed; on the basis of the normal wave modal characteristics of the elastic submarine waveguide, the surface wave characteristics of the common marine environment a