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A New Design for Linear Phase IIR Digital Filter with Efficient Realization | ||
| IRAQI JOURNAL OF COMPUTERS, COMMUNICATIONS, CONTROL AND SYSTEMS ENGINEERING | ||
| Article 1, Volume 5, Issue 1, 2005, Pages 29-41 | ||
| Authors | ||
| Dr.Jassim M.Abdul-Jabbar; Afaf A.Abood AL-Dearawy | ||
| Abstract | ||
| Abstract: Linear phase requirement can be achieved by direct design with an FIR filter at the expense of high order and high computational burden for the given specification. Alternatively, IIR digital filters can be designed with much smaller order than their FIR counterparts, but at the expense of the non-linear phase. In this paper, a new design of linear phase IIR digital filter is presented by composing a zero phase efficiently designed FIR digital filter with maximally flat group delay. The new IIR digital filter is designed with a lower order satisfying the same roll-off magnitude response of the corresponding FIR filter and preserving the approximate pass-band characteristics. | ||
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