A New Method of Underwater Vehicle Hydrodynamic P arameter Identification
水下航行器流体动力参数辨识的一种新方法

Hydrodynamic parameters of underwater vehicle were identified respectively with Newton-Raphson method, simplex method, and simulated annealing approach; and with data measured through lake test, hydrodynamic parameter identification was done by adopting SAA. It is shown that comparing with general methods, SAA has global astringency; and with the method maximum likelihood estimator of parameters can be acquired.