The Acquisition and Short Time Fourier Transform of Lung Sounds
International Journal of Information and Communication Sciences
Volume 2, Issue 4, August 2017, Pages: 49-53
Received: Sep. 12, 2016; Accepted: Apr. 21, 2017; Published: Oct. 23, 2017
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Authors
Feiba Chang, Medical Engineering Department, Institute of Surgery Research, Daping Hospital, The Third Military Medical University, Chongqing, PR China
Jun Yin, Medical Engineering Department, Institute of Surgery Research, Daping Hospital, The Third Military Medical University, Chongqing, PR China
Hehua Zhang, Medical Engineering Department, Institute of Surgery Research, Daping Hospital, The Third Military Medical University, Chongqing, PR China
Anhai Wei, Medical Engineering Department, Institute of Surgery Research, Daping Hospital, The Third Military Medical University, Chongqing, PR China
Zhenzhen Cao, Medical Engineering Department, Institute of Surgery Research, Daping Hospital, The Third Military Medical University, Chongqing, PR China
Qinghua He, State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Surgery Institute of the Third Military Medical University, Chongqing, PR China
Yutian Bi, State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Surgery Institute of the Third Military Medical University, Chongqing, PR China
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Abstract
The paper designed a portable four-channel lung sounds acquisition system. The system first completed the lung sound signal amplifying, filtering and other pretreatment, then the lung sound signals of the pretreatment were sent to the external A/D chip for sampling, the acquisition of lung sound signals were saved as the. WAV audio file stored in the SD card, finally, using the short time Fourier transform to complete the time-frequency domain analysis of lung sound signals. Through the system can accurately detect the patient's lung sound signals, and using the stereo headphones can realize synchronous auscultation of the patient.
Keywords
Portable, Lung Sounds Acquisition, Short Time Fourier Transform, Time and Frequency Domain Analysis
To cite this article
Feiba Chang, Jun Yin, Hehua Zhang, Anhai Wei, Zhenzhen Cao, Qinghua He, Yutian Bi, The Acquisition and Short Time Fourier Transform of Lung Sounds, International Journal of Information and Communication Sciences. Vol. 2, No. 4, 2017, pp. 49-53. doi: 10.11648/j.ijics.20170204.13
Copyright
Copyright © 2017 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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