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一个无源二阶低通滤波器，改变电阻与电容值可以改变截止频率，已试过，好用。,A passive second-order low-pass filter and change the resistance and capacitance values can change the cut-off frequency has been tried, easy to use.
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用单片机AT89s52对可编程滤波器芯片MAX262 进行程序控制，可以同时对两路输入信号进行二阶低通、高通、带通、带阻以及全通滤波处理，滤波器的中心频率在15kHz～50kHz 频率范围内实现64 级程控调节，其Q 值在0.5～64 范围实现128 级程控调节。-In a simple, accurate, reliable, stable and universal principles, use of a hierarchical design to match the idea of i
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用双线性Z变换法实现butterworth二阶低通滤波器。基于TIDSP的，本人原创。-Bilinear Z transform to achieve with the second-order butterworth low-pass filter. Based TIDSP, and my original.
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本压缩包包含了多种滤波，包括；反相输入二阶低通有源滤波器，反相输入一阶低通有源滤波器，四阶有源带通滤波器，同相输入二阶低通有源滤波器等多种。-This archive contains a variety of filtering, including inverting input second-order low-pass active filter, inverting input a first-order low-pass active filter, the fourth-orde
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二阶巴特沃斯数字低通滤波器在DSPTMS320F2812上的实现程序源代码。-Second-order Butterworth digital low-pass filter on the DSPTMS320F2812 realization source code.
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