REAL-TIME INTEGRATION AND DIFFERENTIATION OF ANALOG-SIGNALS BY MEANS OF DIGITAL FILTERING
REAL-TIME INTEGRATION AND DIFFERENTIATION OF ANALOG-SIGNALS BY MEANS OF DIGITAL FILTERING
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DOI：
10.1109/19.65799
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发表时间：
1990-12-01
影响因子：
5.6
通讯作者：
SCHOUKENS, J
中科院分区：
文献类型：
--
作者：
PINTELON, R;SCHOUKENS, J
提出了一种用于宽带递归数字积分器和微分器的新颖滤波器设计方法。将用该方法设计的数字无限脉冲响应（IIR）滤波器的性能与有限脉冲响应（FIR）滤波器以及经典数值积分和微分的性能进行了比较。人们普遍认为，具有出色幅度特性的 IIR 滤波器总是具有较差的相位特性，这一观点已被驳斥。结果表明，可以设计易于实现的具有任意小幅度和相位误差的 IIR 积分器和微分器。虽然 IIR 积分器没有 FIR 替代方案，但 FIR 和 IIR 方法都为微分器提供了有竞争力的结果。<>
A novel filter design method for broadband recursive digital integrators and differentiators is presented. The performance of the digital infinite-impulse response (IIR) filters designed with the method is compared with that of finite-impulse response (FIR) filters and that of classical numerical integration and differentiation. The common conviction that IIR filters with excellent amplitude characteristics always have poor phase behavior is refuted. It is shown that it is possible to design easily realizable IIR integrators and differentiators with an arbitrarily small amplitude and phase error. While there is no FIR alternative for IIR integrators, both FIR and IIR methods give competitive results for differentiators.<>