年間 6 号発行
ISSN 印刷: 2152-5102
ISSN オンライン: 2152-5110
Indexed in
Model Researches of a Spectral-Correlation Characteristics of the Breath Noise in Human Respiratory Tract
要約
The model researches of a spectral-correlation characteristics of the breath noise in human respiratory channel are held. The researches are conducted using the methods of statistical simulation. On the basis of acoustic model of a respiratory tract, offered in this paper, the estimations of a number of spectral-correlation characteristics of the breath noise are obtained, which are of importance for computer diagnostics of the lung diseases. The utility of the correlation co-processing for data, registered on a neck and thorax, is stated. It is shown, that the outcomes of such co-processing essentially depend on a correlation degree between the sources of the breath noise and on their size and position. The features, describing the correlation degree and the position of the noise sources, is determined. The obtained estimations of the spectral-correlation characteristics are compared with the experimental data. As the result, the best agreement between the model and the experimental data was demonstrated under the hypothesis about a noncorrelatedness of the breath noise sources.