Variable Bandwidth Filter for Software Defined Radio
Kirti S. Vaidya1, C.G. Dethe2, S.G. Akojwar3

1Kirti S.Vaidya, Ph.D Scholar, Rajiv Gandhi College of Engineering and Research, Chandrapur. India.
2C.G. Dethe, Director, Academic Staff College, Nagpur. India.
3S.G. Akojwar, Government College of Engineering, Chandrapur. India.

Manuscript received on 17 April 2019 | Revised Manuscript received on 24 April 2019 | Manuscript published on 30 April 2019 | PP: 571-573 | Volume-8 Issue-6, April 2019 | Retrieval Number: E2936238519/19©BEIESP
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Abstract: VDF can be an important block of channelizer for software defined radio. It extracts a desired channel from wideband input. Complexity of a variable digital filter is a concern. A variable digital filter with discrete control over bandwidth is proposed in this paper. The band pass filter response is obtained by combining coefficient decimation II and modified coefficient decimation II. Since both these methods use same set of coefficients except a sign change. Therefore this combination of these two techniques result in less complex systems. VDFs with less complexity can be used in multi standard radios. Index terms: 
Keyword: Variable Digital Filter, Software Defined Radio, Coefficient Decimation
Scope of the Article: Software Design Patterns