A High-speed/Low-power CSD Linear Phase FIR Filter Structure Using Vertical Common Sub-expression 


Vol. 27,  No. 4, pp. 324-329, Apr.  2002


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  Abstract

In the high-speed/low-power digital filter applications like wireless communication systems, canonical signed digit(CSD) linear phase finite impulse response(FIR) filter structures are widely investigated. In this paper, we propose a high-speed/low-power CSD linear phase FIR filter structure using vertical common sub-expression. In the conventional linear phase CSD filter, horizontal common sub-expressions are utilized due to the inherent horizontal common sub-expression of symmetrical filter coefficients. We use the fact that their MSBs are also equal since adjacent filter coefficients have similar values in the linear phase filter. Through the examples, it is shown that our proposed structure is more efficient in case that precision of implementation is lower, and lap length are longer.

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  Cite this article

[IEEE Style]

Y. Jang and S. Yang, "A High-speed/Low-power CSD Linear Phase FIR Filter Structure Using Vertical Common Sub-expression," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 4, pp. 324-329, 2002. DOI: .

[ACM Style]

Young-beom Jang and Se-jung Yang. 2002. A High-speed/Low-power CSD Linear Phase FIR Filter Structure Using Vertical Common Sub-expression. The Journal of Korean Institute of Communications and Information Sciences, 27, 4, (2002), 324-329. DOI: .

[KICS Style]

Young-beom Jang and Se-jung Yang, "A High-speed/Low-power CSD Linear Phase FIR Filter Structure Using Vertical Common Sub-expression," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 4, pp. 324-329, 4. 2002.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880