有限冲击响应数字滤波器的DSP实现

数字滤波是信号处理过程的主要方式,FIR数字滤波器以其系统稳定和易实现线性相位应用更为广泛。设计了采用窗函数法的FIR数字带通滤波器,在DSP中采用单采样模式,在每一个采样周期内只产生一个信号输出值,实时处理采样后的信号。通过MATLAB进行滤波器的仿真,修改滤波器的参数使其达到设计指标。利用窗函数法设立的FIR数字滤波器,是获得较好的主瓣最大能量和旁瓣衰减意义下的最佳设计方法。

Finity Impulsion Respond Digital Filter's Realization With DSP

Digital filter is the mostly fashion in signal dispose process.FIR digital filter application abroad with it's stability system and realize line phasic easily.Design use window function's FIR digital band-pass filter,Adopt single sampling mode in DSP,Produce one signal output in every sampling cycle,Real time dispose signal after sample.Use MATLAB emulate filter,Modify filter's parameter let it achieve design target.Use window function establish FIR digital filter,it's the best design method gain most energy mainpetal and attenuate sidepetal.