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Deterministic Sea Wave Prediction Based on Least Squares With Regularization Algorithm Using Coherent Microwave Radar
IEEE Transactions on Geoscience and Remote Sensing ( IF 8.2 ) Pub Date : 2022-09-02 , DOI: 10.1109/tgrs.2022.3203520
Chunyang Zhang 1 , Zezong Chen 1 , Chen Zhao 1 , Xi Chen 2 , Yunyu Wei 1 , Jiangheng He 1
Affiliation  

Deterministic sea wave prediction (DSWP), which aims to predict instantaneous elevation of the ocean surface, can facilitate the safe implementation of many wave height limited maritime operations. Coherent microwave radar is an emerging tool for accurate wave measurements and could be utilized for the advance of DSWP. To address this issue, a method is proposed to estimate the phase-resolved model coefficients and predict the instantaneous wave elevation using coherent microwave radar. The least square with regularization is adopted to estimate phase-resolved model coefficients from radial velocities of water particles extracted from radar echoes. Then instantaneous wave elevation is predicted according to the linear wave propagation model in terms of phase-resolved model coefficients. Simulation analysis is carried out to evaluate the performance of the proposed method under long-crested and short-crested sea states. Subsequently, the proposed method is validated using the dataset collected with a coherent S-band radar. The radar-measured wave spectrum is consistent with the WaveRider data. A comparison between the predicted wave elevation at the location of ship and the phase-shifted roll angle are conducted, and the trends are in an agreement with a correlation coefficient 0.69. In addition, the significant wave height derived from the predicted wave elevation is close to that of the buoy. These results indicate that the proposed method is effective for DSWP using coherent microwave radar.

中文翻译:

相干微波雷达基于正则化算法的最小二乘确定性海浪预测

确定性海浪预测 (DSWP) 旨在预测海面的瞬时高度,可以促进许多波高受限的海上作业的安全实施。相干微波雷达是一种新兴的精确波浪测量工具,可用于推进 DSWP。为了解决这个问题,提出了一种利用相干微波雷达估计相位分辨模型系数和预测瞬时波高程的方法。采用带正则化的最小二乘法从雷达回波中提取的水粒子径向速度估计相位分辨模型系数。然后根据线性波传播模型,根据相位分辨模型系数预测瞬时波高程。进行了仿真分析,以评估该方法在长波峰和短波峰海况下的性能。随后,使用相干 S 波段雷达收集的数据集验证了所提出的方法。雷达测量的波谱与 WaveRider 数据一致。将船位预测波浪高程与相移横摇角进行比较,趋势一致,相关系数为0.69。此外,根据预测波高得出的有效波高接近浮标的有效波高。这些结果表明,所提出的方法对于使用相干微波雷达的 DSWP 是有效的。使用相干 S 波段雷达收集的数据集验证了所提出的方法。雷达测量的波谱与 WaveRider 数据一致。将船位预测波浪高程与相移横摇角进行比较,趋势一致,相关系数为0.69。此外,根据预测波高得出的有效波高接近浮标的有效波高。这些结果表明,所提出的方法对于使用相干微波雷达的 DSWP 是有效的。使用相干 S 波段雷达收集的数据集验证了所提出的方法。雷达测量的波谱与 WaveRider 数据一致。将船位预测波浪高程与相移横摇角进行比较,趋势一致,相关系数为0.69。此外,根据预测波高得出的有效波高接近浮标的有效波高。这些结果表明,所提出的方法对于使用相干微波雷达的 DSWP 是有效的。趋势与相关系数 0.69 一致。此外,根据预测波高得出的有效波高接近浮标的有效波高。这些结果表明,所提出的方法对于使用相干微波雷达的 DSWP 是有效的。趋势与相关系数 0.69 一致。此外,根据预测波高得出的有效波高接近浮标的有效波高。这些结果表明,所提出的方法对于使用相干微波雷达的 DSWP 是有效的。
更新日期:2022-09-02
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