A new realization of wave digital filters using GIC and fractional bilinear transform

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• 作者：Richa Barsainya ; ^{richa.barsainya@gmail.com" class="auth_mail" title="E-mail the corresponding author} ; Tarun Kumar Rawat ; Rachit Mahendra
• 关键词：Digital filter ; Fractional bilinear transform ; Generalized immittance converter ; Wave equations
• 刊名：Engineering Science and Technology,an International Journal
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：19
• 期：1
• 页码：429-437
• 全文大小：1634 K

文摘

In this paper, a new class of second-order digital filters is developed by using the concept of wave characterization, fractional bilinear transform and generalized immittance converter (GIC). These second-order digital filter sections are used as building blocks in cascade synthesis. During the realization procedure, fractional bilinear transform is utilized for analog to digital conversion to get more competent digital filter sections. The noise performance of the proposed filter sections is compared with that of already known GIC second order digital filter sections. The proposed synthesis yields lowpass and highpass filters with ameliorated signal to noise ratio in comparison to that of the conventional GIC digital filters.