کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
563192 875474 2009 18 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Multi-dimensional higher order differential operators derived from the Teager–Kaiser energy-tracking function
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
پیش نمایش صفحه اول مقاله
Multi-dimensional higher order differential operators derived from the Teager–Kaiser energy-tracking function
چکیده انگلیسی

This paper introduces a new multi-dimensional higher order operator derived from the Teager–Kaiser energy-tracking function. A mathematical model which integrates different existing non-linear operators at any orders is constructed. The proposed non-linear continuous filter is computed using tensors provided by the Kronecker products of higher order derivatives of the signal. In particular, the introduced operator takes into account the diagonal directions through the partial derivatives. We prove that there is a recurrence relationship that allows us to deduce all functions at different orders. To show the effectiveness of the proposed operator, demodulation of noisy multi-dimensional amplitude-modulation (AM)–frequency-modulation (FM) signals are presented and results compared to those of some well-known demodulation approaches.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Signal Processing - Volume 89, Issue 4, April 2009, Pages 623–640
نویسندگان
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