Title :
Signal restoration using a modified version of Jansson´s iterative deconvolution method
Author :
Crilly, Paul Benjamin
Author_Institution :
Dept. of Electr. & Comput. Eng., Tennessee Univ., Knoxville, TN, USA
Abstract :
A modification of Jansson´s method of iterative convolution to allow convergence for a broader class of distorted signals is discussed. This modification consists of a cross-correlation operation of both the distorted signal and its distortion operator prior to the start of the deconvolution. Its performance is evaluated. Test cases include deconvolving spectral peak data at various signal-to-noise ratios and degrees of resolution. For benchmark purposes, other conventional prefiltering schemes are presented. The use of the cross-correlation filter provides the best error performance and measurement repeatabilities. The cross-correlation prefiltering operation allowed restoration of signals that would otherwise not be possible given severe noise and overlap conditions
Keywords :
correlation theory; filtering and prediction theory; iterative methods; signal processing; spectral analysis; Jansson´s iterative deconvolution method; cross-correlation filter; cross-correlation operation; distorted signals; distortion operator; error performance; measurement repeatabilities; modification; prefiltering schemes; signal restoration; spectral peak data; Benchmark testing; Convergence; Convolution; Deconvolution; Distortion; Filters; Iterative methods; Signal resolution; Signal restoration; Signal to noise ratio;
Conference_Titel :
Southeastcon '90. Proceedings., IEEE
Conference_Location :
New Orleans, LA
DOI :
10.1109/SECON.1990.117912
