摘要
IIR滤波器用较少阶数就获得较高的频率选择特性。根据滤波器的技术指标,采用FDATool工具来设计阶数最小的滤波器,导出滤波器的抽头系数;然后用DSP汇编语言编程,实现IIR算法;用MATLAB产生合成输入信号,导入滤波系统;最后,用CCS软件观察滤波前后的波形变化。波形仿真结果和理论值相吻合。
High frequency selective characteristic can be acquired by less order number of IIR filter.According to the technology index of filter,By FDATool,order number minimum filter is designed and filter coefficient is Exported;then using assemble language programming of DSP,IIR algorithms are realized;synthetic input signal produced by MATLAB is imported into filtering system,At last,the waveform change is observed by CCS software.The simulation results and theoretical value are matched.
出处
《电子器件》
CAS
北大核心
2013年第2期194-196,共3页
Chinese Journal of Electron Devices
