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Remote Sensing Technology and Application  1996, Vol. 11 Issue (3): 26-30    DOI: 10.11873/j.issn.1004-0323.1996.3.26
    
An Algorithm of Sea Surface Radar Scatter Applicable to Wide Frequency Band
Xu Feng Jia Fu
(Institute of Mechanics,Chinese Academy of sciences,Beijing,100080)
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Abstract  Some most widely applied models computing radar scattering coefficients from sea surface,i.e.Sass-1,RADSCAT,CMOD.are all derived from extensive data processing of corresponding radarscattering signals along with the sea surface geophysical measurements.As a result,such models are all radar frequency dependent.The discrepancies between model prediction and measurements would be rather serious if such as algorithm is applied to a frequency band quite away from the frequencies,from which the algorithm is derived,Such frequency dependence of models is inconvenient and limits their wider applications.Based on an investigation of radar scattering data sets of different frequencies,a spectrum form of short wind wave and then an algorithm computing radar scattering coefficients from sea surface is proposed in the present paper.The present model is constructed to be applied to wider frequency band.The predictions of sea surface radar scattering by the present mosel agree well with the measurements made by radar scatterometries working at frequencies vareed as widely as from 0.428~34.4 GHz.
Key words:  Microwave frequency       Normalized radar backscattering cross section     
Published:  11 September 2012
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Cite this article: 

Xu Feng Jia Fu . An Algorithm of Sea Surface Radar Scatter Applicable to Wide Frequency Band. Remote Sensing Technology and Application, 1996, 11(3): 26-30.

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http://www.rsta.ac.cn/EN/10.11873/j.issn.1004-0323.1996.3.26     OR     http://www.rsta.ac.cn/EN/Y1996/V11/I3/26

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