An algorithm of calculating turbulence kinetic energy dissipation rate based on motion compensation

In order to maximum eliminate the pollution caused by vibration of the instrument and improve the accuracy of the turbulent kinetic energy dissipation rate, this paper puts forward an algorithm based on motion compensation. Firstly, spectrum analysis is used to analyze the relationship between shear signal and the acceleration signal. Then, according to the relationship, the acceleration signal takes as reference signal to design motion compensation algorithm. Finally, wiener filtering is used to get the optimum parameter to eliminate instrument vibration interference. In order to verify the validity of the algorithm, real sea data is applied, and the results show that the vibration signal is effectively eliminated, which provides real and effective turbulence signal to calculate the turbulent kinetic energy dissipation rate.