کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
561053 1451936 2017 12 صفحه PDF سفارش دهید دانلود کنید
عنوان انگلیسی مقاله ISI
Discontinuity preserving method for noise removal of multi-carrier signals
ترجمه فارسی عنوان
روش حفظ ناپیوستگی برای حذف نویز از سیگنال های چند حامل
کلمات کلیدی
انتشار ناهمسانگرد؛ حذف نویز؛ سیگنال گسست. سیگنال های چند حامل؛ حفظ ناپیوستگی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
چکیده انگلیسی


• We propose a nonlinear filter to remove noise and preserve discontinuities as well as carrier signals in multiple carrier frequency signals.
• Semi-implicit discretization scheme is used to implement this filter.
• Robustness of the algorithm is demonstrated in various experiments performed on noisy signals with multiple carrier frequencies.

A nonlinear method based on anisotropic diffusion notion is proposed in this paper to remove noise from noisy signals modulated with multiple carrier signals by preserving carrier signals as well as discontinuities present in the original noiseless signals. Gaussian and correlated noise contaminating signals with up to four carriers are considered here. Our algorithm proposed here is implemented with both explicit and semi-implicit discretization schemes. Experiments presented here demonstrate promising results indicating a better performance for our nonlinear noise removal method in comparison with the state-of- art in the literature.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Signal Processing - Volume 131, February 2017, Pages 8–19
نویسندگان
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