设计具有任意幅度频响的二维线性相位FIR数字滤波器的新方法  

A New Method for Designing 2 D Linear Phase FIR Digital Filter with Arbitrarily Shaped Magnitude Responses

作　　者：马云辉[1] 

机构地区：[1]中山学院电子系

出　　处：《系统工程与电子技术》1999年第1期20-24,共5页Systems Engineering and Electronics

摘　　要：本文提出了一种设计任意幅度频响的二维线性相位ＦＩＲ数字滤波器的新方法。通过最小化频域平方误差函数可得到滤波器系数的简单公式，从而根据给定的任意幅度频响直接计算滤波器的系数，大大降低了运算量。文中还给出了滤波器设计实例。A new method for the design of 2 D linear phase FIR digital filters with arbitrarily shaped magnitude responses is presented in this paper.By minimizing the squared error function in the frequency domain,the simple formulas for the filter coefficients are obtained.The coefficients of the designed filter can be evaluated directly from the specified arbitrary magnitude frequency responses,resulting in a greatly reduced computational burden for the filter design.Design examples are given to confirm the simplicity and effectiveness of the proposed method. [WT9.HZ〗

关 键 词：数学滤波器 设计 频域平方误差 FIR 

分 类 号：TN713.702[电子电信—电路与系统]