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 | Furse, Cynthia M. | Faster than fourier -- ultra-efficient time-to-frequency domain conversions for FDTD | Two highly efficient methods of computing magnitude and phase from time-domain data are demonstrated. These methods, based on solution of linear equations, are found to be equally accurate and more efficient than Fourier transform methods (DIT and FFT) for limited numbers of Frequencies. These metho... | Finite-difference time-domain method; FDTD; Fourier transform methods; Sine wave magnitude; Sine wave phase | 1998 |