CAJ | 학술논문

结合数字信号处理理论中对数字滤波器的研究，分析IIR数字滤波器的典型设计方法，建立数字滤波器设计模型，并利用MATLAB软件对IIR数字滤波器设计方法进行仿真。同时，在MATLAB GUI图形界面编程环境下设计IIR数字滤波器交互式平台，该平台可根据实际任务需要来设计滤波器的技术指标，对比分析模拟滤波器和数字滤波器的频率特性，同时通过数据读取、幅值分析以及滤波器的选择实现对实际样本信号的滤波功能。
결합수자신호처리이론중대수자려파기적연구，분석IIR수자려파기적전형설계방법，건립수자려파기설계모형，병이용MATLAB연건대IIR수자려파기설계방법진행방진。동시，재MATLAB GUI도형계면편정배경하설계IIR수자려파기교호식평태，해평태가근거실제임무수요래설계려파기적기술지표，대비분석모의려파기화수자려파기적빈솔특성，동시통과수거독취、폭치분석이급려파기적선택실현대실제양본신호적려파공능。
Combining with the research of digital filter in the digital signal processing′s theory,it analyzed the typical design methods of IIR digital filter ,built digital filter design model ,and used MATLAB to sim-ulate the design methods of IIR digital filter in this paper .It designed the interactive platform of IIR digit-al filter in MATLAB GUI graphical program environment ,which can design filter′s specifications accord-ing to the actual tasks required , compare and analyze the frequency characteristics of analog and digital filters.Through the reading datas ,analyzing the amplitudes and the choice of filter the filting that can real-ize of the actual sample signals .