A sequential filtering technique for geoacoustic inversion with ship of opportunity and a vector sensor

摘要: This paper introduces a sequential filtering technique to obtain the ocean bottom acoustic properties with noise field of ship opportunity. It filters ratio between pressure p and vertical particle velocity V z (or gradient g ), both measured by vector sensor, estimate environmental properties. models inverse problem as random walk for time/spatial evolution, formulating parameters in recursive state-space form. assumes summation previous stage variance term each state, estimates their values along source track sequentially recorded data. Numerical tests were carried out South East Elba environment. The preliminary results demonstrates this can effectively resolve most geoacoustic parameters.