【摘要】 利用共轭梯度－快速傅里叶变换法（ＣＧ－ＦＦＴ）求解了谐振区齿状散射目标的雷达散射截面（ＲＣＳ）．通过共轭梯度－快速傅里叶变换求解电场积分方程（Ｅ－ＦＩＥ），给出齿状散射体的雷达散射截面．适当选取基函数和检验函数，将电场积分方程离散化，从而获致准确度较高的ＣＧ－ＦＦＴ实用程序，节省内存，提高了计算速度，缩短了计算时间．更多还原

【Abstract】 A numerical scheme to obtain the radar cross section (RCS) of scattering bodies of resonant size with serrated structure is discribed. The RCS is obtained by solving the electric fieldintegral equation (EFIE) using the conjugate gradient-fast Fourier transform method (CGFFT). The choice of a suitable set of basis and testing functions to discretize the EFIE leadsto obtain a very accurate and computationally efficient CG-FFT procedure. This CG-FFTscheme avoids the storage of large matrices and reduces the computer time.更多还原