A computer simulation of relative backscattering coefficients of sea surfaces in satellite altimetry

Electronics and Communications in Japan (Part II: Electronics) Pub Date : 2007-12-01 DOI:10.1002/ECJB.20428

K. Fukuda, K. Fujisaki, M. Tateiba

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引用次数: 4

Abstract

The purpose of this study is to establish a method for estimating the sea wave period by satellite radar altimetry. The backscatter coefficient, which is closely related to the period, is evaluated by computer simulation. Specifically, the following method is presented. The sea wave is modeled on the basis of the Pierson–Moskowitz spectrum. The average received power is determined by radar altimetry simulation of our proposal. It is shown that the backscatter coefficient of the sea surface can be calculated on a relative basis. Using the data for the relative received power calculated from various sea wave parameters, the relation between the significant wave height and the backscatter coefficient, and also the relation between the significant wavelength and the backscatter coefficient, are derived. Thus, the possibility of observing the sea wave period by using satellite radar altimetry is demonstrated. © 2007 Wiley Periodicals, Inc. Electron Comm Jpn Pt 2, 90(12): 121–128, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecjb.20428

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卫星测高中海面相对后向散射系数的计算机模拟

本研究的目的是建立一种利用卫星雷达测高估算海浪周期的方法。通过计算机模拟计算了与周期密切相关的后向散射系数。具体来说，提出了以下方法。海浪是在皮尔逊-莫斯科维茨谱的基础上模拟的。平均接收功率由雷达测高模拟确定。结果表明，海面后向散射系数可以在相对基础上计算。利用各种海浪参数计算的相对接收功率数据，导出了有效波高与后向散射系数的关系，以及有效波长与后向散射系数的关系。从而论证了利用卫星雷达测高观测海波周期的可能性。©2007 Wiley期刊公司电子工程学报，2009,29 (3):1104 - 1104;在线发表于Wiley InterScience (www.interscience.wiley.com)。DOI 10.1002 / ecjb.20428

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Electronics and Communications in Japan (Part II: Electronics)

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