How to design the CIC(cascade integrator comb) filter,half band filter and FIR(finite impulse response) filter by use of Matlab was described and a high effective multi cascade decimated filter was designed.The test result showed that this kind of filter can meet the seismic data acquisiting ...
介绍如何应用Matlab设计级联梳状(CIC)滤波器、半带滤波器和有限脉冲响应(FIR)滤波器。并设计了一种高效的多级抽取滤波器,将该算法用数字信号处理器(DSP)进行验证,结果表明,该多级抽取滤波器能满足地震数据采集系统的精度要求。 Abstract How to design the CIC(cascade integrator comb) filter,half band filter ...
下面代码中hcic即为构造的CIC滤波器,抽取倍数为4,差分延时为1;cic_comp为CIC补偿滤波器;其中Ap表示通带衰减,Astp表示阻带衰减。 Fs=1;% sample rateR=4;% decimator factorD=1;% differential delayFp=0.05;% pass bandFstp=0.075;% stop bandAp=0.1;% attenuation in pass bandAstp=60;% attenuation in s...
cic_flt.NumSections,fpass,fstop,.3,20,fs/cic_rate)); comp_fir = dsp.FIRFilter('Numerator',cic_comp.Numerator); cascade_flt = cascade(cic_flt,comp_fir); fvtool(cic_flt,comp_fir,... cascade_flt,'Fs',[fs fs/cic_rate fs]) yticks([-100:10:100]) 从图中可以看出,补偿的FIR滤波...
c19c55 = DSP.FilterCascade (c19f,c55f); fvtool (c19c55); 向上0True向下 points 请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。 非常感谢您的帮助,这确实解决了我的问题。
cascade(CICDecim,CICCompDecim),'ShowReference','off','Fs',[Fs Fs/R Fs])legend('CIC Decimator','CIC Compensator','Resulting Cascade Filter'); 2. 使用工具箱设计 打开filterDesigner工具箱,两种方式: matlab 命令行输入>> filterDesigner回车; ...
(fdesign.ciccomp(cic_flt.DifferentialDelay, ... cic_flt.NumSections,fpass,fstop,.3,20,fs/cic_rate));comp_fir = dsp.FIRFilter('Numerator',cmop_coe);cascade_flt = cascade(cic_flt,comp_fir);fvtool(cic_flt,comp_fir,...cascade_flt,'Fs',[fs fs/cic2_rate fs])yticks([-200:20:0...
b,a=butter(order,[low,high],btype='band')returnb,adefbandpass_filter(data,lowcut,highcut,fs,order=5):b,a=butter_bandpass(lowcut,highcut,fs,order=order)y=lfilter(b,a,data)returny# 应用滤波器filtered_signal=bandpass_filter(audio_signal,lowcut=500,highcut=1500,fs=44100) ...
Filter Bank • Dyadic Synthesis Filter Bank • Subband Analysis Filter • Subband Synthesis Filter • FIR Rate Converter • Sample Rate Converter (SRC) • Filter Cascade • Farrow Rate Converter • Digital Down-Converter (DDC) • Digital Up-...
',true);cic_comp=design(fdesign.ciccomp(hcic.DifferentialDelay,...hcic.NumSections,Fp,Fstp,Ap,Astp,Fs/R),'SystemObject',true);fvtool(hcic,cic_comp,...cascade(hcic,cic_comp),'ShowReference','off','Fs',[Fs Fs/RFs])legend('CIC Decimator','CIC Compensator','Resulting Cascade Filter');...