专利名称：Adaptive line enhancer
发明人：Erik Edward Mark De Clippel
申请号：US10015893
申请日：20011101
公开号：US06954771B2
公开日：
20051011
专利内容由知识产权出版社提供
adaptive
专利附图：
摘要：An improved adaptive line enhancer includes an adaptive Gray-Markel lattice notch filter having an adaptive notch frequency, in which the notch frequency is
determined according to a notch frequency variable k. The value of k for the n+1sample period is determined according to the following equation: (+1)=
()−sgn[()]sgn[UPDATEFN]×μ in which y(n) is the notch filter output, μ is the adaptation constant, and UPDATEFN has a transfer function in the z-transform domain of: in which αdetermines the bandwidth and k(n) is a variable for determining the current notch frequency. The algorithm for adapting the notch frequency enables the notch frequency to be directly calculated from knowledge of internal variables of the wave digital filter.
申请人：Erik Edward Mark De Clippel
地址：Leuven BE
国籍：BE
代理人：Edward W. Goodman
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