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提出一种在不增加分数阶微分滤波器复杂度的前提下,能有效提高分数阶微分滤波器性能的方法。该方法利用几种基于典型微分算子的分数阶微分滤波器之间的互补性,通过相互内插结合的方式,用于提高ⅡR分数阶数字滤波器的性能。改进后的分数阶微分滤波器频率响应更接近理想分数阶微分滤波器,表明所提方法的有效性。
A new method to improve the performance of fractional order differential filter without increasing the complexity of fractional order differential filter is proposed. This method uses the complementarities between several fractional differential filters based on typical differential operators to improve the performance of fractional-order IIR digital filters by combining them with each other. The improved fractional differential filter frequency response is closer to the ideal fractional differential filter, indicating the effectiveness of the proposed method.