【摘要】 研究了基于GPS高频数据进行海浪测量的方法。利用TRACK解算得海上载体高精度的垂向位移,经浪潮分离提取海浪信号,分别采用相关函数法和周期图法估计海浪信号的功率谱,并计算海浪要素。利用实测数据进行试验,结果表明,周期图法推算的平均波高和平均周期精度较高,与测波仪结果差异分别小于2cm和0.25s,基于GPS高频数据的海浪测量方法可有效反演海浪要素。更多还原

【Abstract】 This paper focus on a wave measurement method based on GPS high-frequency data. Acquiring highprecision vertical displacement of carrier on sea surface via TRACK,then deriving the wave signal from the vertical displacement time series,using correlation function method and periodic diagram methodto estimate the signal power spectrum respectively,and figuring out the wave elements. Using the measured data for experiment,the results showthat the performance of periodic diagram method is better,with the differences of average wave height and average period within 2cm and 0. 25 s compared with the results of the wave gauge,confirming the feasibility of the method.更多还原