کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4641715 1341317 2009 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Semi-blind source extraction algorithm for fetal electrocardiogram based on generalized autocorrelations and reference signals
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات ریاضیات کاربردی
پیش نمایش صفحه اول مقاله
Semi-blind source extraction algorithm for fetal electrocardiogram based on generalized autocorrelations and reference signals
چکیده انگلیسی

Blind source extraction (BSE) has become one of the promising methods in the field of signal processing and analysis, which only desires to extract “interesting” source signals with specific stochastic property or features so as to save lots of computing time and resources. This paper addresses BSE problem, in which desired source signals have some available reference signals. Based on this prior information, we develop an objective function for extraction of temporally correlated sources. Maximizing this objective function, a semi-blind source extraction fixed-point algorithm is proposed. Simulations on artificial electrocardiograph (ECG) signals and the real-world ECG data demonstrate the better performance of the new algorithm. Moreover, comparisons with existing algorithms further indicate the validity of our new algorithm, and also show its robustness to the estimated error of time delay.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational and Applied Mathematics - Volume 223, Issue 1, 1 January 2009, Pages 409–420
نویسندگان
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