18 July 2018

FIR filter characteristics

Most of the FIR full form filter is that linear phase filter When the linear phase filter is desired an FIR filter meaning is usually used. Here this article gives information about some characteristics of FIR filter to know more about details in FIR filters.
  • Can be adaptive
  • Unconditionally stable
  • No analog equivalent
  • In this filter, there is no dispersion hence no change in overall signal shape due to non-linear phase shift
  • Impulse response has a finite duration
  • Linear phase, constant group delay
  • Easy to understand and design like widows sinc method, Fourier series expansion with windowing, frequency sampling using inverse FFT