Title :
Extraction of poles from experimental data-on pencil-of-function method
Author :
Ouyang, Dan ; Li, Jing ; Wang, Wen Bing
Author_Institution :
Xi´´an Jiaotong Univ., China
Abstract :
One of the advantages of the pencil-of-function (POF) for poles extraction is that it can incorporate first-order bias correction. The Prony method can also accomplish this when the difference equations of the Prony procedure are solved by the least-squares method. Numerical results of the POF method show that the accuracy degraded sharply as the number of poles increased to some extent. The reason for this may be the same as that for the Prony method: the accuracy is limited by the pole number, pole distribution, and magnitude of the residues.<>
Keywords :
matrix algebra; poles and zeros; Prony method; difference equations; experimental data; first-order bias correction; least-squares method; pencil-of-function method; pole distribution; pole number; poles extraction; residue magnitudes; Degradation; Difference equations; Filters; Least squares methods; Noise reduction; Signal resolution;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1989. AP-S. Digest
Conference_Location :
San Jose, CA, USA
DOI :
10.1109/APS.1989.135012
