Filter Design Techniques
              Filter Design Techniques
      • Design of IIR Filters
      • Design of IIR Filters
      • Design of FIR Filters
      • Design of FIR Filters
      • Optimum Approximations of FIR Filters
      • Optimum Approximations of FIR Filters
      • FIR Equiripple Approximation
      • FIR Equiripple Approximation
                             Procedure of Filter Design
                              Procedure of Filter Design
           •   Define the specifications of filter
           •    Define the specifications of filter
           •   Selection of appropriate technique for filter’s coefficient 
           •    Selection of appropriate technique for filter’s coefficient 
               evaluation
                evaluation
           •   Selection of appropriate structure of filter
           •    Selection of appropriate structure of filter
           •   Analysis of finite word-length effect
           •    Analysis of finite word-length effect
           •   Implementation
           •    Implementation
                           Define the Specification of Filter
                           Define the Specification of Filter
           •   Signal characteristics (type of signal source and sink, I/O 
               interface, data rate and width, maximum operating frequency)
           •   Filter characteristics (required amplitude and/or phase 
               response, tolerance, operating speed and mode; real time or 
               batch)
           •   Working environment
           •Other criteria
                  Selection of Appropriate Technique for Filter’s 
                  Selection of Appropriate Technique for Filter’s 
                                    Coefficient Evaluation
                                    Coefficient Evaluation
           •   Impulse invariant: IIR
           •    Impulse invariant: IIR
           •   Bilinear transformation: IIR
           •    Bilinear transformation: IIR
           •   Pole-zero placement: IIR
           •    Pole-zero placement: IIR
           •   Windowing: FIR
           •    Windowing: FIR
           •   Frequency sampling: FIR
           •    Frequency sampling: FIR
           •   Optimal: FIR
           •    Optimal: FIR