PEMISAHAN SINYAL BUNYI DARI MICROPHONE ARRAY DENGAN MENGGUNAKAN METODE BLIND SOURCE SEPARATION - INDEPENDENT COMPONENT ANALYSIS UNTUK MEMANTAU KONDISI POROS RETAK

  • Novitha L Th Thenu Universitas Pattimura
DOI: https://doi.org/10.30598/ale.2.2019.78-82
Keywords: sinyal bunyi, Blind Source Separation, Independent Component Analysis, microphone array

Abstract

Abstrak Tulisan ini mempresentasikan tentang pemisahan sinyal bunyi untuk memantau kondisi poros dengan menggunakan metode Blind Source Separation (BSS) - Independent Component Analysis (ICA). Pada penelitian ini, bunyi poros retak yang sementara berputar direkam melalui susunan mikrofon (microphone array) sebagai sensornya. Tiap-tiap mikrofon menerima sinyal dari poros tersebut, sehingga sinyal output dari tiap mikrofon merupakan sinyal campuran. BSS merupakan teknik memisahkan sinyal campuran berdasarkan analisa kebebasan statistik ICA sumber bunyi. Dengan memperhatikan jarak dan sudut datang antara mikrofon dengan poros maka tiap mikrofon menerima sinyal berbeda pula. Sinyal campuran dari tiap mikrofon akan diestimasi untuk memantau kondisi poros berdasarkan analisa pola bunyi. Pada penelitian ini pemisahan sinyal dilakukan pada time-domain dengan algoritma natural gradient. Berdasarkan hasil penelitian diperoleh metode pemisahan sinyal terbaik adalah metode pemisahan sinyal dalam kawasan waktu (TDICA) jauh lebih baik dari metode FDICA karena nilai MSE melalui TDICA jauh lebih kecil.

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References

Reju, V. G. 2009. Blind Separation of Speech Mixtures. Ph.D. Dissertation. School of Electrical & Electronic Engineering. Singapore.
Behringer Ultravoice - User’s manual . Dynamic Microphone XM1800s. Version 1, 1 June 2003.
Makino, S., Sawada, H., Mukai, R., and Araki, S. 2005. Blind Source Separation of Convolutive Mixtures of Speech in Frequency Domain. IEICE Trans. Fundamentals, Vol. E88-A, pp. 1640 -1655.
Zhou, W. and Chelidze, D. 2007. Blind Source Separation Based Vibration Mode Identification. Mechanical Systems and Signal Processing, Vol. 21, pp. 3072 - 3087.
Nishikawa, T. 2005. Blind Source Separation Based on Multistage Independent Component. Ph.D. Dissertation, Nara Institute of Science and Technology, Ikoma.
Amari, S. 1997. I. Saitama: RIKEN, Japan.Taylor, D. A. (1990), Introduction to Marine Engineering. 2nd edition, Butterworth & Co (Publisher), Ltd., London.
Lewis, J. 2012. Microphone Array Beamforming. Analog Devices – 1140 Aplication Note.
Published
2019-07-10
How to Cite
Thenu, N. (2019). PEMISAHAN SINYAL BUNYI DARI MICROPHONE ARRAY DENGAN MENGGUNAKAN METODE BLIND SOURCE SEPARATION - INDEPENDENT COMPONENT ANALYSIS UNTUK MEMANTAU KONDISI POROS RETAK. ALE Proceeding, 2, 78-82. https://doi.org/10.30598/ale.2.2019.78-82
Issue
Vol 2 (2019): Archipelago Engineering (ALE)
Section
Articles

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