A new approach to the realization of low-sensitivity IIR digital filters

نویسندگان

  • Palghat Vaidyanathan
  • Sanjit K. Mitra
  • Yrjö Neuvo
چکیده

A new implementation of an IIR digital filter transfer function is presented that is structurally passive and, hence, has extremely low pass-band sensitivity. The structure is based on a simple parallel interconnection of two all-pass sections, with each section implemented in a structurally lossless manner. The structure shares a number of properties in common with wave lattice digital filters. Computer simulation results verifying the low-sensitivity feature are included, along with results on roundoff noise/dynamic range interaction. A large number of alternatives is available for the implementation of the all-pass sections, giving rise to the well-known wave lattice digital filters as a specific instance of the implementation.

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عنوان ژورنال:
  • IEEE Trans. Acoustics, Speech, and Signal Processing

دوره 34  شماره 

صفحات  -

تاریخ انتشار 1986