摘要
数字滤波器的设计和应用是数字信号处理中的核心内容之一。利用MATLAB信号处理工具箱中的FDATool工具设计出具有去噪滤波功能的有限脉冲响应滤波器,根据滤波器的不同应用需求,利用FDATool工具设计出具不同滤波功能的有限脉冲响应滤波器,并且根据设计要求和滤波器特性随时调整参数,直观简便,极大地减轻了工作量,极大方便了滤波器的设计,达到理想的应用目的。最后,对所设计的滤波器进行滤波仿真验证,对含有噪声的信号进行去噪处理,通过比较分析滤波器去噪前后信号时域及频域波形图,得出所设计的滤波器能够达到理想的去噪效果。
Digital filter design and application of digital signal processing is one of the core.In this paper,MATLAB Signal Processing Toolbox FDATool tools designed with the denoising filtering finite impulse response filter,according to the different filter applications,issued by FDATool tool design features of different filter finite impulse response filter,and based on filter characteristics of the design requirements and adjust the parameters at any time,intuitive and easy,greatly reducing the workload,greatly facilitate the design of the filter,to achieve the desired application purpose.Finally,the designed filter to filter simulation,the signal with noise denoising,denoising filter through a comparative analysis before and after the signal in time domain and frequency domain waveforms,obtained by the designed filter can achieve the desired denoising effect.
出处
《电子测量技术》
2010年第11期66-69,共4页
Electronic Measurement Technology
