海面与下方复杂目标复合散射的MOM研究
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Study on composite scattering of the sea surface and the complex target below of it by using the Method of Moments
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    摘要:

    基于实际海面与下方目标的复合散射在海洋工程、辐射定标及水下目标探测等方面的应用需求,采用改进的一维分形模型模拟实际海面,运用矩量法研究了海面与其下方梯形截面柱体目标的复合电磁散射特性,借助数值计算获得复合散射系数随散射角变化的曲线,详细讨论了海面风速、海面的分维数、海水温度、目标物的尺寸和深度及入射波的频率对复合散射系数的影响。结果表明,海面风速、分维数、入射波的频率对复合散射系数的影响明显,海水温度、目标物的尺寸及深度对复合散射系数的影响较小。

    Abstract:

    The application based on composite scattering of the actual sea surface with the target below of it demand in ocean engineering, radiation calibration and underwater target detection etc. The application based on composite scattering of the actual sea surface with the target below of it demand in ocean engineering, radiation calibration and underwater target detection etc. The improved onedimensional fractal model is adopted to simulate the actual sea surface, the method of moments is used to study the composite electromagnetic scattering about the sea surface and the trapezoidal crosssection cylinder target beneath it, the curve is abtained by numerical calculation about the complex scattering coefficient changes with the scattering angle, the impact on the composite scattering coefficient is discussed in detail about the surface wind speed, the surface fractal dimension, water temperature, the size and depth of the target and the frequency of the incident wave, the result show that the influence of the surface wind speed, the fractal dimension and the frequency of the incident wave are obvious to the composite scattering coefficient, that the water temperature, the size and depth of the target coefficient have little effect on it.

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薛钰川,任新成.海面与下方复杂目标复合散射的MOM研究[J].电子测量技术,2015,38(5):1-6

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  • 在线发布日期: 2015-06-05
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