一个波浪破碎散射模型的改进

An improved model for microwave backscattering including the effects of breaking waves

为了得到与实测数据更为一致的散射模型，对KHCC03散射模型进行了改进。研究了考虑波浪破碎影响的KHCC03散射模型的适用范围。研究结果表明，KHCC03散射模型在入射角为25°～40°范围内，模型结果与实测数据吻合较好，在入射角小于25°和入射角大于40°的情况下，模型结果与实测数据差异较大。针对这一问题，对KHCC03模型进行了改进，结果表明：与原KHCC03模型相比，改进后的模型结果与实测数据吻合程度明显提高。

Due to the great important role of wave breaking in microwave backscattering, it is necessary to consider the impact of wave breaking in the scattering model. In this paper, the validity and application scope of KHCC03 model including the impact of wave breaking were investigated. It is shown that the resuits of KHCC03 model are in a great agreement with the measured data when the incidence angle located in the range of 25°-40°. However, the model results are quite different from those of the measured data when the incidence angle is less than 25° or greater than 40°. To improve this inconsistency, an improved model of KHCC03 is proposed, and the results from the improved model are in a good agreement with those of the measured data.