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本文介绍了一种设计任意型(宽带、窄带、低阶、高阶、低通、高通、带通、带阻)一维FIR数字滤波器新方法.给出设计不同类型滤波器的统一方法。各种类型滤波器脉冲响应的设计公式简单、计算方便。该方法消除了Gibbs现象.不仅克服了优化设计中收敛速度、设计精度及初值选取等问题,而且减少设计高阶滤波器的时间。最后,本文给出了各种类型滤波器设计的仿真结果。
This paper presents a new method for designing arbitrary one-dimensional FIR digital filters (broadband, narrowband, low order, high order, lowpass, highpass, bandpass, bandstop) A uniform method for designing different types of filters is given. Various types of filter impulse response design formula is simple, easy to calculate. This method eliminates the Gibbs phenomenon. It not only overcomes the problems of convergence speed, design accuracy and initial value selection in optimization design, but also reduces the time for designing high-order filter. Finally, this paper gives the simulation results of various types of filter design.