Self-correction algorithms and applications to digital signal processing

被引:7
|
作者
Liu, JG [1 ]
机构
[1] German Res Ctr Earth Sci, Div Geomech & Geotechnol 5, D-14473 Potsdam, Germany
关键词
self-calibration; self-correction; discrete Fourier transform; parameter estimation; accuracy improvement;
D O I
10.1016/S0263-2241(01)00034-3
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In this paper a self-correction algorithm is introduced for the accuracy improvement of approximate algorithms in digital signal processing, parameter estimation, etc. This algorithm is based on the self-calibration of an approximate algorithm under correction. The calculation errors of approximate algorithm can be reasonably self-corrected by self-calibration. The algorithm is applied to different approximate digital signal processing, e.g. discrete Fourier transform of spectral limited periodic signals sampled asynchronously, parameter estimation of damped oscillation signals, etc. Simulation results show accuracy improvement by using this algorithm for digital signal processing and parameter estimation in measurements of electrical and mechanical quantities. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:107 / 116
页数:10
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