کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
561651 1451973 2010 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A novel blind source separation method for single-channel signal
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
پیش نمایش صفحه اول مقاله
A novel blind source separation method for single-channel signal
چکیده انگلیسی

The blind separation of single-channel signal is one of the most important aspects in many fields. Our research is carried out to develop a blind separation method of single-channel signal, in which the singular spectrum analysis (SSA) and blind source separation (BSS) techniques are jointly used, i.e. the single-channel signal is firstly changed into pseudo-MIMO (multi-input and multi-output) mode, and then each source signal is separated via a fast BSS algorithm. A signal preprocessing procedure, which is mainly focused on testing the nonstationarity of single-channel signal, is conducted before the operations of mixed signal transform and separation. In this research, the approach of heuristic segmentation of a nonstationary time-series is proposed. Throughout the experiment, the effectiveness of the proposed method is validated with a data set taken from a digital wideband receiver in an outdoor test. Then, a comparison is made between the proposed method and the Hilbert–Huang transform (HHT)-based signal separation method. The advantage of the proposed method is exhibited.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Signal Processing - Volume 90, Issue 12, December 2010, Pages 3232–3241
نویسندگان
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