Based on the mainly characteristics of ocean environmental parameters and underwater acoustic models,the synthetic simulation and visualizing analysis system of ocean geography,hydrology and underwater acoustic environment ar.

Acoustic Modeling for Continuous Speech Recognition;

Researching of the Mongolian Acoustic Model Based on Speech Recognition;

A microstructure based acoustic model is introduced,which can be used to optimize the microstructure of cellular materials and thus to obtain their optimal acoustic property.

The sound-generating models for the main sources of tire/road noise were established based on analysis of the sound generating mechanisms of tire/road noise, and the total time-domain wave was obtained by combining the noise waves of the tire and road.

Based on the sound-generating charateristics of smooth tread,ribbed patterns and block patterns of tires,the original sound-generating model was revised,a physical model suitable for sound-generating test of tire with non-small block patterns was proposed,the relative programmes BPTNS and BPODS were worked out,and the accuracy of the model was confirmed by the simulation test.