CAJ | 학술논문

在满足幅度特性的要求下，FIR系统可以保证严格的线性相位特性，合理设计滤波器各参数以逼近理想滤波器，从而满足设计性能指标。反之，在某种准则下设计滤波器各参数，可获取最优结果。这里借助MATLAB 软件工具箱，采用三种不同的方法设计FIR数字滤波器，并进行对比。
재만족폭도특성적요구하，FIR계통가이보증엄격적선성상위특성，합리설계려파기각삼수이핍근이상려파기，종이만족설계성능지표。반지，재모충준칙하설계려파기각삼수，가획취최우결과。저리차조MATLAB 연건공구상，채용삼충불동적방법설계FIR수자려파기，병진행대비。
Under meeting the requirements of amplitude characteristics , FIR system could guarantee the strict linear phase features.It is determined that the FIR system needs reasonable filter parameters design so as to closeing the ideal filter , in order to meet the design performance metrics .Conversely , the design of filter parameters under certain standards , can ob-tain the optimal results .In this paper , with the help of MATLAB software toolbox , using three different methods designs FIR digital filter , and the comparison of their advantages and disadvantages are also made .