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基于矩量法,分析了目标单站雷达散射截面(RCS)的计算方法.当进行扫角计算时,平面波入射角度的变化只会对右端电压矩阵产生影响,左端阻抗矩阵不会发生变化.根据这一特点,提出了一种基于高斯消元法的单站RCS快速计算方法.对第1个角度,记录下消元过程,并将阻抗矩阵转换为乘积因子矩阵.在对其余角度的矩阵方程求解时,只需对变化的右端电压矩阵按照第1个角度的消元过程进行相应计算即可,从而加快了整体角度范围的单站RCS计算.
Based on the method of moment, the calculation method of target single station radar cross section (RCS) is analyzed.When the sweep angle is calculated, the change of plane wave incident angle will only affect the right-end voltage matrix and the left-end impedance matrix will not change.According to This paper proposed a fast calculation method of single-station RCS based on Gaussian elimination method. For the first angle, the elimination process was recorded and the impedance matrix was transformed into the product factor matrix.When the rest angle matrix equation When solving, it is only necessary to calculate the change of the right-end voltage matrix according to the first angle elimination process, thus accelerating the single-station RCS calculation in the whole angle range.