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本文提出了一种计算复杂形状物体RCS的算法。这个方法在应用物理光学原理求解散射场时,把散射体表面分割成许多小曲面元,用平面板块柔代替曲面元,求出板块元的散射场矢量之和作为物体散射场的近似值。由于求板块元散射场的积分运算转化成了代数运算,使这种方法具有运算速度快,应用灵活的特点。经与实际测量结果对比,计算结果是较为满意的。
In this paper, an algorithm to calculate the RCS of complex shape objects is proposed. This method divides the surface of scatterer into many small surface elements when the scattering field is solved by using the principle of physical optics. Using the flat plate instead of the curved surface element, the sum of the scattered field vectors of the plate element is obtained as the approximate value of the scattering field of the object. Since the calculation of plate element scattering field integration into algebraic computing, so that this method has the computing speed, the application of flexible features. Compared with the actual measurement results, the calculation results are more satisfactory.