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https://open.uns.ac.rs/handle/123456789/2813
Title: | Maximally Flat-Frequency-Response Multiple-Resonator-Based Harmonic Analysis | Authors: | Kusljevic M. Tomić, Josif Poljak P. |
Issue Date: | 1-Dec-2017 | Journal: | IEEE Transactions on Instrumentation and Measurement | Abstract: | © 2012 IEEE. This paper presents an improved approach to the recently proposed multiple-resonator-based method for the harmonic analysis that has been provided in the previous papers. Previously, two inherent particular cases have been considered. In these cases, reference points in which estimation is performed are located either in the middle or at the end of the observation interval. The first case exhibits a good noises and unwanted harmonics attenuation but possesses a large delay time. In the second case, the filters are able to form a zero-flat phase response about the operation frequency and hence able to provide instantaneous estimates, but with large overshoots caused by resonant frequencies at the edges of the passband, and the high level of the sidelobes, that also makes it susceptible to interharmonics and noise interference. The aim of this paper is to propose a compromised solution provided by the tradeoff between those opposite requirements by shifting this point along the observation interval. This way the frequency responses of the estimator are reshaped. A maximally flatness of the frequency response in the operation harmonic frequency is kept in all cases, but only locating the reference point in a fraction around the center of the observation interval provides flat-top frequency responses. The effectiveness of the proposed estimation technique is shown through simulations. | URI: | https://open.uns.ac.rs/handle/123456789/2813 | ISSN: | 189456 | DOI: | 10.1109/TIM.2017.2751799 |
Appears in Collections: | FTN Publikacije/Publications |
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