کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
562348 1451948 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A robust band-dependent variable step size NSAF algorithm against impulsive noises
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
پیش نمایش صفحه اول مقاله
A robust band-dependent variable step size NSAF algorithm against impulsive noises
چکیده انگلیسی

Proposed is a new subband adaptive filter (SAF) algorithm by minimizing Huber’s cost function that is robust to impulsive noises. Generally, this algorithm works in the mode of the normalized SAF (NSAF) algorithm, while it behaves like the sign SAF (SSAF) algorithm only when the impulsive noises appear. To further improve the robustness of this algorithm against impulsive noises, the subband cutoff parameters are updated in a recursive way. Moreover, the proposed algorithm can be interpreted as a variable step size NSAF algorithm, thus it exhibits faster convergence rate and lower steady-state error than the NSAF. Simulation results, using different colored input signals in both impulsive and free-impulsive noise environments, show that the proposed algorithm works better than some existing algorithms.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Signal Processing - Volume 119, February 2016, Pages 203–208
نویسندگان
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