Kumar, B. ; Dutta Roy, S. C. (1989) Maximally linear FIR digital differentiators for high frequencies IEEE Transactions on Circuits and Systems, 36 (6). pp. 890-893. ISSN 0098-4094
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Official URL: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumb...
Related URL: http://dx.doi.org/10.1109/31.90411
Abstract
The frequency response of conventional FIR digital differentiators (DD), using only integral delays, is poor towards the high frequency end, and becomes identically zero at w=p. To overcome this problem, a half-sample delay, z-½, is used in the minimax relative error DDs. However, the order of such DDs grows exponentially when accuracies better than 99.0% are desired. The authors propose maximally linear DDs, using one half-sample delay, which can achieve a frequency response accuracy better than 99.9%, with attractively low orders for 0.5p⩽w⩽p. Mathematical formulas have been derived for computing the coefficients for the design.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Institute of Electrical and Electronics Engineers. |
| ID Code: | 9993 |
| Deposited On: | 02 Nov 2010 10:10 |
| Last Modified: | 01 Jun 2011 11:27 |
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