Title :
Comments on "An improved pulse-basis conjugate gradient FFT method for the thin conducting plate problem" /spl lsqb/with reply/spl rsqb/
Author :
Zwamborn, A.P.M. ; Tran, Top V. ; McCowen, A.
Author_Institution :
Electromagn. Effects Group, TNO Phys. & Electron. Lab., The Hague, Netherlands
fDate :
3/1/1994 12:00:00 AM
Abstract :
Peter and Zwamborn comment on the paper by Tran and McCowen (IEEE Trans. Antenn. Propag., vol.41, p.185-90, 1993) which presents pulse-basis expansion functions and Dirac /spl delta/ testing functions within a conjugate gradient FFT (CGFFT) formulation. In the conclusions, Tran and McCowen state: "Although these spurious effects do not appear in the CGFFT formulation using the rooftop basis function proposed by Zwamborn and van den Berg (1991), there are more computational costs associated with their method than with ours." Peter and Zwamborn disagree with this statement. A reply is given by Tran and McCowen.<>
Keywords :
conjugate gradient methods; convergence of numerical methods; fast Fourier transforms; radar cross-sections; CGFFT; Dirac /spl delta/ testing functions; computational costs; pulse-basis conjugate gradient FFT method; pulse-basis expansion functions; rooftop basis function; spurious effects; thin conducting plate problem; Antenna theory; Antennas and propagation; Bistatic radar; Computational efficiency; Convergence of numerical methods; Current distribution; Microcomputers; Physics; Radiowave propagation; Testing;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
