Design of causal stable IIR filter banks with powers-of-two coefficients

See May Phoong, Bor Ting Lin, Yuan-Pei Lin

Research output: Contribution to journalConference articlepeer-review


We introduce an efficient method for the design of causal stable IIR filter bank (FB) with Powers-of-two coefficients. Ladder structure is used to construct the IIR FBs with perfect reconstruction (PR). In the proposed method, FBs with real coefficients are first designed and an iterative procedure is then employed to discretize the coefficients. A sensitivity measure is introduced to determine the order of coefficients to be discretized. To ensure the stability of the IIR filters, the stability triangle is used. Even though the method is suboptimal, it avoids integer programing and yields satisfactory results.

Original languageEnglish
Article number7075474
JournalEuropean Signal Processing Conference
Issue numberMarch
StatePublished - 31 Mar 2000
Event2000 10th European Signal Processing Conference, EUSIPCO 2000 - Tampere, Finland
Duration: 4 Sep 20008 Sep 2000

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