...切比雪夫逼近法；MATLAB仿真设计； [gap=3713]eywords: FIR digital filters, Window function method, Frequency sampling method, Chebyshev approximation method, MATLAB simulation design; ..
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By using MATLAB signal and using window method, frequency sampling and Chebyshev approximation the design of low pass digital filter in the toolbox have been processed.
采用窗函数法、频率抽样法和切比雪夫最佳一致逼近法，通过调用Matlab信号处理工具箱中的函数设计低通数字滤波器。
This paper describes the approximation of active filters. An optimum seeking method is used to calculate the filter functions which have the form of Chebyshev approximation functions.
本文讨论有源滤波器滤波函数的逼近问题，提出了一种寻优方法，计算切比雪夫型滤波函数。
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