Title :
Generalized pencil-of-function method for extracting poles of an EM system from its transient response
Author :
Hua, Y. ; Sarkar, T.K.
Author_Institution :
Dept. of Electr. & Comput. Eng., Syracuse Univ., NY, USA
Abstract :
A generalized pencil-of-function (GPOF) method is developed for extracting the poles of an electromagnetic system from its transient response. The GPOF method needs the solution of a generalized eigenvalue problem to find the poles. Subspace decomposition is also used to optimize the performance of the GPOF method. The GPOF method has advantages over the Prony method in both computation and noise sensitivity, and approaches the Cramer-Rao bound when the signal-to-noise ratio (SNR) is above threshold. An application of the GPOF method to a thin-wire target is presented.<>
Keywords :
eigenvalues and eigenfunctions; electromagnetic field theory; poles and zeros; signal processing; transient response; Cramer-Rao bound; EM system; GPOF method; electromagnetic system; generalised pencil-of-function methods; generalized eigenvalue problem; noise sensitivity; pole extraction; signal-to-noise ratio; subspace decomposition; target identification; thin-wire target; transient response; Data mining; Eigenvalues and eigenfunctions; Equations; Feature extraction; Least squares methods; Matrix decomposition; Optimization methods; Polynomials; Signal to noise ratio; Transient response;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
