A low cost and reliable Polak-Ribiere Conjugate Gradient Deflation ICA algorithm for real signals
Publish place: 21th Iranian Conference on Electric Engineering
Publish Year: 1392
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ICEE21_725
تاریخ نمایه سازی: 27 مرداد 1392
Abstract:
In this paper a new more robust version of a classical deflation independent component analysis algorithm (namely DelLR) which was introduced by Delfosse and Loubaton[1] forreal context, is implemented. The new version uses one of the nonlinear conjugate gradient optimization methods, Polak-Ribiere.We compared the new algorithm with the classical one and the FastICA technique in order to propose a performance comparisonof different deflation based ICA algorithms in terms of estimationaccuracy and numerical complexity on different signals, audio and images. We show that the new algorithm is faster and has higher quality of separation and a lower computational cost than others
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Authors
M Ghasemi-Fard
Electrical Department, Engineering Faculty, Shahid Chamran University of Ahvaz, Ahvaz, Iran
L Albera
Université de Rennes ۱, LTSI, F-۳۵۰۰۰ Rennes, France