15 November 2011 Separation and reconstruction of high pressure water-jet reflective sound signal based on ICA
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Proceedings Volume 8321, Seventh International Symposium on Precision Engineering Measurements and Instrumentation; 832122 (2011) https://doi.org/10.1117/12.904890
Event: Seventh International Symposium on Precision Engineering Measurements and Instrumentation, 2011, Yunnan, China
Abstract
The impact of high pressure water-jet on the different materials target will produce different reflective mixed sound. In order to reconstruct the reflective sound signals distribution on the linear detecting line accurately and to separate the environment noise effectively, the mixed sound signals acquired by linear mike array were processed by ICA. The basic principle of ICA and algorithm of FASTICA were described in detail. The emulation experiment was designed. The environment noise signal was simulated by using band-limited white noise and the reflective sound signal was simulated by using pulse signal. The reflective sound signal attenuation produced by the different distance transmission was simulated by weighting the sound signal with different contingencies. The mixed sound signals acquired by linear mike array were synthesized by using the above simulated signals and were whitened and separated by ICA. The final results verified that the environment noise separation and the reconstruction of the detecting-line sound distribution can be realized effectively.
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Hongtao Yang, Yuling Sun, Meng Li, Dongsu Zhang, Tianfeng Wu, "Separation and reconstruction of high pressure water-jet reflective sound signal based on ICA", Proc. SPIE 8321, Seventh International Symposium on Precision Engineering Measurements and Instrumentation, 832122 (15 November 2011); doi: 10.1117/12.904890; https://doi.org/10.1117/12.904890
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