کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
565017 875668 2006 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Design of variable and adaptive fractional order FIR differentiators
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
پیش نمایش صفحه اول مقاله
Design of variable and adaptive fractional order FIR differentiators
چکیده انگلیسی

In this paper, the design problems of variable and adaptive fractional order finite impulse response (FIR) differentiators are investigated. First, the fractional differencing method and weighted least squares (WLS) approach are presented to design variable fractional order differentiators which can be implemented by the efficient Farrow structure. Next, an adaptive fractional order differentiator is developed and applied to estimate the parameters of 1/f noise from the finite observation data set. The parameters are updated by using least mean squares (LMS) adaptive algorithm. Finally, the variable fractional order differentiator is used to reduce the error rate of handwritten signature verification system.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Signal Processing - Volume 86, Issue 10, October 2006, Pages 2554–2566
نویسندگان
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