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Fin stabilizers with fin-lift feedback control can shield the mapping error of calculation between the fin angle and fin lift force,which is in the fin stabilizer with fin-angle feedback control.In practice,there are some technical difficulties in lift fin stabilizers,such as lift force detection and lift force sensor installation,so it cannot achieve the good antirolling performance.Therefore,a fin stabilizer system with fin-lift/fin-angle integrated control is brought forward.Data fusion based on wavelet denoising technology is employed in the system,which combines lift with fin angle local information from two sensors with different frequency ranges in order to eliminate redundant and contradictory information,and using complementary information to obtain the relative integrity of the lift force signal.The system model is established in this paper,and the fusion signal and the antirolling performance of this model are simulated respectively.The result shows that the control system can meet the antirolling need in different sea situations.
Fin stabilizers with fin-lift feedback control can shield the mapping error of calculation between the fin angle and fin lift force, which is in the fin stabilizer with fin-angle feedback control. Practice, there are some technical difficulties in lift fin stabilizers, such as lift force detection and lift force sensor installation, so it can not achieve the good antirolling performance. Before, a fin stabilizer system with fin-lift / fin-angle integrated control is brought forward. Data fusion based on wavelet denoising technology is employed in the system, which combines lift with fin angle local information from two sensors with different frequency ranges in order to eliminate redundant and contradictory information, and using complementary information to obtain the relative integrity of the lift force signal. The system model is established in this paper , and the fusion signal and the antirolling performance of this model are simulated respectively. The result shows that the control system c an meet the antirolling need in different sea situations.