Abstract | ||
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A new optimization method for the design of fullband and lowpass IIR digital differentiators is proposed. In the new method, the passband phase-response error is minimized under the constraint that the maximum passband amplitude-response relative error is below a prescribed level. For lowpass IIR differentiators, an additional constraint is introduced to limit the average squared amplitude response in the stopband so as to minimize any high-frequency noise that may be present. Extensive experimental results are included, which show that the differentiators designed using the proposed method have much smaller maximum phase-response error for the same passband amplitude-response error and stopband constraints when compared with several differentiators designed using state-of-the-art competing methods. |
Year | DOI | Venue |
---|---|---|
2014 | 10.1109/TSP.2014.2302733 | Signal Processing, IEEE Transactions |
Keywords | Field | DocType |
IIR filters,low-pass filters,optimisation,signal processing,constrained optimization,full band IIR digital differentiator,low-pass IIR digital differentiator,maximum passband amplitude response relative error,optimization method,Digital differentiators,IIR filter design,design of filters by optimization | Passband,Differentiator,Control theory,Infinite impulse response,2D Filters,Low-pass filter,Mathematics,Approximation error,Stopband,Constrained optimization | Journal |
Volume | Issue | ISSN |
62 | 7 | 1053-587X |
Citations | PageRank | References |
10 | 0.55 | 6 |
Authors | ||
3 |
Name | Order | Citations | PageRank |
---|---|---|---|
Rajeev C. Nongpiur | 1 | 57 | 7.06 |
Dale J. Shpak | 2 | 10 | 0.55 |
A. Antoniou | 3 | 267 | 30.79 |