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2005•Applied AcousticsRequires access

A modified Wiener inverse filter for deconvolution in ultrasonic detection

Guo Jian

Open publisher page 6 citations

Abstract

Wiener inverse filter is one of the deconvolution methods to renew echo for improving the vertical resolution. This paper explains why the traditional algorithm is not stable, and then presents a modified algorithm to improve the problem, which is based on using a modified prior SNR and applying the spectrum extrapolation method to the date outside of the frequency band. Computer simulation and experimental observation show that this method of modification is feasible.

About this research paper

What this paper is about

Wiener inverse filter is one of the deconvolution methods to renew echo for improving the vertical resolution. This paper explains why the traditional algorithm is not stable, and then presents a modified algorithm to improve the problem, which is based on using a modified prior SNR and applying the spectrum extrapolation method to the date outside of the frequency band. Computer simulation and experimental observation show that this method of modification is feasible.

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OpenAlex reports 6 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

Wiener inverse filter is one of the deconvolution methods to renew echo for improving the vertical resolution. This paper explains why the traditional algorithm is not stable, and then presents a modified algorithm to improve the problem, which is based on using a modified prior SNR and applying the spectrum extrapolation method to the date outside of the frequency band. Computer simulation and experimental observation show that this method of modification is feasible.

Key concepts: Inverse filter, Wiener deconvolution, Wiener filter, Deconvolution, Extrapolation, Algorithm, Inverse, Filter (signal processing)

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