DocumentCode :
597026
Title :
Dynamic range improvement of new leap-frog filter using numerical optimization
Author :
Jurisic, Drazen ; Mijat, Neven ; Moschytz, G.S.
Author_Institution :
Fac. of Electr. Eng. & Comput., Univ. of Zagreb, Zagreb, Croatia
fYear :
2012
fDate :
9-12 Dec. 2012
Firstpage :
264
Lastpage :
267
Abstract :
In this paper the dynamic-range optimization of a new class of low-pass active-RC filters, based on the leap-frog topology is presented, using the MATLAB Optimization Toolbox. The new structure is a simplified leap-frog structure with a reduced number of components, reduced complexity, and permitting a straightforward design procedure. It is most suitable for the nonbalanced-to-ground version of low-sensitivity filters. As an illustration of the efficiency of the proposed new leap-frog filter, a sensitivity analysis using Monte Carlo runs was performed on examples with Butterworth and Chebyshev 0.5dB pass-band ripple low-pass filters. A comparison with other common filters such as standard leap-frog filters and single-amplifier Biquads demonstrates the sensitivity improvement obtained with the new filters. In this paper we present a numerical method of optimizing these new filters for improved dynamic range.
Keywords :
Butterworth filters; Chebyshev filters; Monte Carlo methods; amplifiers; band-pass filters; low-pass filters; optimisation; Butterworth filters; Chebyshev filters; MATLAB optimization toolbox; Monte Carlo runs; dynamic range improvement; dynamic range optimization; leap-frog filter; leap-frog topology; low-pass active-RC filters; low-sensitivity filters; nonbalanced-to-ground version; numerical optimization; pass-band filters; reduced complexity; reduced number; ripple low-pass filters; simplified leap-frog structure; single-amplifier biquads; straightforward design procedure; Band pass filters; Chebyshev approximation; Dynamic range; Low pass filters; Optimization; Standards;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electronics, Circuits and Systems (ICECS), 2012 19th IEEE International Conference on
Conference_Location :
Seville
Print_ISBN :
978-1-4673-1261-5
Electronic_ISBN :
978-1-4673-1259-2
Type :
conf
DOI :
10.1109/ICECS.2012.6463750
Filename :
6463750
Link To Document :
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