A band-limited signal extrapolation algorithm using pseudo inverse filtering and heuristic optimization

Author

Nakayama, Kenji

Author_Institution

NEC Corp., Kawasaki, Japan

fYear

1988

fDate

11-14 Apr 1988

Firstpage

1754

Abstract

A bandlimited signal extrapolation algorithm is proposed. J.A. Cadzow´s algorithm (1979) is modified to eliminate undesired outband spectra. An inverse filter stopband response is relaxed by adding small random numbers. A constrained heuristic optimization is suggested that can use arbitrary signal properties as constraints. Through numerical examples, it is shown how regularization techniques can improve SNR (signal-to-noise-ratio) by 20 dB

Keywords

extrapolation; filtering and prediction theory; optimisation; signal processing; SNR; bandlimited signal extrapolation algorithm; constraints; heuristic optimization; inverse filter stopband response; pseudo inverse filtering; random numbers; regularization techniques; undesired outband spectra elimination; Constraint optimization; Convolution; Extrapolation; Filtering algorithms; Filters; Frequency; Iterative algorithms; Sampling methods; Signal processing; Signal processing algorithms;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1988. ICASSP-88., 1988 International Conference on

Conference_Location

New York, NY

ISSN

1520-6149

Type

conf

DOI

10.1109/ICASSP.1988.196958

Filename

196958

Link To Document

https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3004134