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本文根据低切和高切滤波器的特性,利用拉普拉斯运算电路,分别推导了零漂输出和噪声滤波器输出的数字表达式,据此提出了两种滤波器的设计方案。
According to the characteristics of low-cut and high-cut filters, the paper deduces the digital expressions of the output of zero-drift and the output of noise filter by Laplacian circuit, and proposes the design of two kinds of filters.