Абстракт
Purpose. The purpose of the work is to assess the impact of the characteristics of modern conventional microelectromechanical inertial motion units on the errors in measuring the energy characteristics of surface waves by wave buoys. Methods and Results. Several methods are considered for estimating the wave energy spectrum based on inertial measurements, including accelerometer/gyroscope/magnetometer data. Four algorithms for reconstructing vertical acceleration were analyzed for further assessment of the spectrum of sea surface elevations. Based on the data obtained in a field experiment from the MHI Stationary Oceanographic Platform, differences in estimates of wave heights using one or another algorithm are shown. The performed numerical experiment qualitatively reproduces the features of inertial measurements and their respective spectra observed in field conditions.
Ключевые слова
BUOY, WAVE GAUGE, INERTIAL MEASUREMENTS, KALMAN FILTER, WIND WAVES, WAVE HEIGHT, MEASUREMENT ERRORS, OCEANOGRAPHIC PLATFORM, NUMERICAL EXPERIMENT