Two's complement quantization in periodic digital filters

Ratchaneekorn Thamvichai, Tamal Bose

Research output: Contribution to journalArticlepeer-review


The stability of periodically shift variant (PSV) filters are studied when implemented with two's complement truncation (TCT) quantization. Block form and standard (nonblock) form implementations are considered, and two sufficient conditions are established for stability. As a special case, second-order coupled-form PSV filters are then investigated under TCT quantization. Stability regions are established within the parameter space for block implementations. Examples are given to illustrate the results.

Original languageEnglish (US)
Pages (from-to)1951-1956
Number of pages6
JournalIEEE Transactions on Signal Processing
Issue number8
StatePublished - Aug 2002


  • Digital filter
  • Periodic filter
  • Quantization
  • Stability
  • Two's complement

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering


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