ZHOU Hou-xing, HONG Wei, TONG Chuang-ming. Application of Preconditioned Conjugate Gradient Method to RCS Analysis of Large Dipole-Array Antennas[J]. Acta Electronica Sinica, 2001, 29(12): 1601-1604.
ZHOU Hou-xing, HONG Wei, TONG Chuang-ming. Application of Preconditioned Conjugate Gradient Method to RCS Analysis of Large Dipole-Array Antennas[J]. Acta Electronica Sinica, 2001, 29(12): 1601-1604.DOI:
The preconditioned conjugate gradient method(PCG) for solving triple Toeplitz linear systems is put forward and is combined with the fast Fourier transform(FFT).The combining algorithm
called PCGFFT
is applied to RCS analysis of large dipole-array antennas.Because of the preconditioner
the condition number of the coefficient matrix is largely improved.The numerical results show that PCGFFT reduces the need for computer memory
speeds the iteration and enhances the convergence.