标签: iir数字滤波器

IIR数字滤波器设计的主要方法是先设计低通模拟滤波器，进行频率变换，将其转换为相应的（高通、带通等）模拟滤波器，再转换为高通、带通或带阻数字滤波器……

TheMicrochipPICmicro®PIC18familyofmicrocontrol-lersarepopularlyknownfortheirlogicandcontrollingfunctions.Inaddition,thesemicrocontrollershavebuilt-inhardwaremultipliersandmultiplefilepointers.Thesefeatures,alongwiththebuilt-inanalog-to-digitalcon-verter(ADC),makePIC18microcontrollersacompe-tentchoiceforapplicationswherelogicandcontrollingfunctionsarecombinedwithsignalprocessingapplications.MAN852ImplementingFIRandIIRDigitalFiltersUsingPIC18MicrocontrollersAuthor:B.K.AnanthaRamuFIRFILTERIMPLEMENTATIONMicrochipTechnologyDesignsEquation1showsthecomputationperformedbyan(India)Pvt.Ltd.FIRfilter.EQUATION1:Y[N]COMPUTATIONINTRODUCTIONy[n]=x[n]*a0+x[n……