Wave shadowing effects on phase resolved wave spectra estimated from RADAR backscatter: Part 2: The conflation technique and the deconvolution techniques for the mitigation of wave shadowing effects
Wave shadowing effects on phase resolved wave spectra estimated from RADAR backscatter: Part 2: The conflation technique and the deconvolution techniques for the mitigation of wave shadowing effects
复制标题
波阴影效应对从雷达反向散射估计的相分辨波谱的影响：第 2 部分：用于减轻波阴影效应的合并技术和反卷积技术
DOI：
10.1016/j.oceaneng.2022.113315
复制
发表时间：
2023
影响因子：
5
通讯作者：
Belmont M
中科院分区：
文献类型：
--
作者：
Belmont M
波浪阴影是雷达后向散射测量中相位分辨海浪光谱估计的主要误差来源，本文是有关波浪阴影的两个系列文章的第二部分。介绍了一种新的技术——合并技术，利用多个雷达扫描数据集构建一个多段数据集，并建立相应的理论模型。通过模拟，将合并方法与所谓的谱平均技术进行了比较，谱平均技术是估计相分辨波谱的标准方法。发现合并可以提供更好的估计，特别是可以避免需要强加波色散关系，尽管在谱平均中需要额外的计算步骤。第二种基于反褶积的技术也被引入以减轻波的阴影误差。然而，由于反卷积是一个非常成熟的过程，在信号过程和线性系统理论文献中都有很好的涵盖，所以对第二种方法的讨论非常简短。
This is the second part of a short two series concerned with wave shadowing which is acknowledged as the primary source of error involved in the estimation of phase resolved sea wave spectra from RADAR backscatter measurement. A new technique termed conflation is introduced that uses multiple RADAR scan data sets to build a multi-segment data set together with a corresponding theoretic model. Using simulation the conflation methodology is compared against the so called spectral averaging technique that is the standard approach for estimating phase resolved wave spectra. Conflation is found to provide superior estimates, in particular making it possible to avoid the need to impose the wave dispersion relationship though an additional computational step as is necessary in spectral averaging. A second technique based upon deconvolution is also introduced for mitigating wave shadowing errors. However because deconvolution is a very mature process well covered in the signal process and linear system theory literature the discussion of this second method is very brief.
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DOI：
10.1109/oceans-taipei.2014.6964526
发表时间：
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期刊：
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影响因子：
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作者：
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