Detection Of Fusion Based On Ds Evidence Reasoning Of The Target Ship

This thesis introduces the basic conception of the data fusion technique , the model algorithm and the content of research . The dada fusion technique of the Dempster-Shafer evidence theory is described systematically and applied in the target detection of ship . On the base of studying and simulating the through signatures of the sound field , the magnetic field and the hydraulic field of ship , the method of constructing basic probability assignment of sensor is analyzed . Then the application of target detection of ship based on the Dempster-Shafer evidence theory is successfully simulated , and some conclusions , with reason , is drawn . In the part of simulating the through signatures of the sound field of ship , it not only comes down to the application of time-frequency analysis methods , and the application of the architecture between processing and interpretation of signals , but also the application of the Hilbert transform .Finally , this thesis, on the base of the combination of the Dempster-Shafer evidence theory and some basic theories of target detection, validates the simulation system by experiment , and makes the synthetical assessment of the whole system performance.