CAJ | 학술논문

基于MATLAB信号处理工具箱,设计一种滤波器,针对信号的分离和滤除,要求有良好的幅频特性和线性相位特性,且可通过参数来改变其主瓣宽度和旁瓣衰减。提出基于窗函数法设计滤波器,加入信号源,利用FDATool设计和分析模块电路,经过Simulink仿真,对其进行时域、频域分析和滤波。实验结果表明,本设计方法能够有效的滤除无用信号,直观简便,提高了信号的提取效果。
기우MATLAB신호처리공구상,설계일충려파기,침대신호적분리화려제,요구유량호적폭빈특성화선성상위특성,차가통과삼수래개변기주판관도화방판쇠감。제출기우창함수법설계려파기,가입신호원,이용FDATool설계화분석모괴전로,경과Simulink방진,대기진행시역、빈역분석화려파。실험결과표명,본설계방법능구유효적려제무용신호,직관간편,제고료신호적제취효과。
Based on matlab signal processing toolbox,Design a filter,Aiming at signal separation and filter,Not only have this filter good amplitude frequency characteristics,but linear phase characteristic,and through parameters to change its main lobe and side-lobe attenuation.In this subject proposed that use window function method.programming and running,Then add the signal and noise sourse,through FDATool design and analysis module circuit,After simulink simulation analysis,On the time,Analyse the domain and frequency.Experimental results show that this design method can effectively fiflter useless signal.Intuitive and easy,And improve the effect of signal extraction.