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Dynamics of Frequency Estimation in the Frequency Domain
IEEE Transactions on Instrumentation and Measurement, 2007The possibility of error reduction in frequency estimations with a multipoint interpolated discrete Fourier transformation (DFT) for the Hanning window is described. An estimation of the periodic parameter by the interpolation of the DFT gives the same effect as the reduction of spectrum tails.
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2016 8th International Conference on Electronics, Computers and Artificial Intelligence (ECAI), 2016
In this paper it is presented the second stage analysis used to determine the signal quality coefficient for vibro-acoustic signals. After successfully determining the integrity coefficient in the “first stage analysis on determining the Signal Quality Coefficient in vibro-acoustic domain-waveform integrity analysis” paper a second and deeper analysis ...
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In this paper it is presented the second stage analysis used to determine the signal quality coefficient for vibro-acoustic signals. After successfully determining the integrity coefficient in the “first stage analysis on determining the Signal Quality Coefficient in vibro-acoustic domain-waveform integrity analysis” paper a second and deeper analysis ...
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Strict Passivity in the Frequency Domain
IFAC Proceedings Volumes, 1992Abstract The notion of strict passivity is defined for systems represented by a set of differential equations. An equivalent definition is formulated in frequency domain terms. The paper shows that the considered systems are strictly passive if and only if a corresponding J-Iossless matrix can be constructed. Several examples are included.
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Frequency domain chaotic watermarking
ISCAS 2001. The 2001 IEEE International Symposium on Circuits and Systems (Cat. No.01CH37196), 2002A watermarking procedure to be applied in the frequency domain to digital images has been proposed and investigated, with purpose of copyright protection. The selected digital signature is a chaotic sequence embedded by considering a shaping function to weight in different manner each sequence value, as a function of the image properties in the ...
GIOVANARDI, Alessandra +1 more
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Forecast Combination in the Frequency Domain
SSRN Electronic Journal, 2023Predictability is time and frequency dependent. We propose a new forecasting method - forecast combination in the frequency domain - that takes this fact into account. With this method we forecast the equity premium and real GDP growth rate. Combining forecasts in the frequency domain produces markedly more accurate predictions relative to the standard
Faria, Gonçalo, Verona, Fabio
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2019
Time series analysis in frequency domain has always been an active area of research. Theorists often employ techniques in frequency domain to advance current understanding on complex time series properties and develop useful toolboxes for practical time series analysis.
Chan, Felix, Reale, M.
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Time series analysis in frequency domain has always been an active area of research. Theorists often employ techniques in frequency domain to advance current understanding on complex time series properties and develop useful toolboxes for practical time series analysis.
Chan, Felix, Reale, M.
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IEEE Control Systems, 2000
The author aims to give you some idea of what a pole is and why it is a significant concept. To do this, he gives a tour of the mysterious world that control engineers call the frequency domain. The article is intended as a conceptual preview for undergraduate students and assumes minimal technical background.
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The author aims to give you some idea of what a pole is and why it is a significant concept. To do this, he gives a tour of the mysterious world that control engineers call the frequency domain. The article is intended as a conceptual preview for undergraduate students and assumes minimal technical background.
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Frequency-Domain Equalization Incorporated with Frequency-Domain Redundancy for OFDM Systems
2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications, 2006This paper proposes a frequency-domain equalizer (FEQ) which utilizes not only guard interval but also redundancy in the frequency domain to eliminate inter-symbol and inter-carrier interferences. The proposed FEQ employs the hybrid criterion, i.e., the zero-forcing (ZF) criterion for compensating desired subcarriers and the minimum mean square error ...
Akihiro Okazaki +5 more
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Single-Carrier Frequency-Domain Equalization Based on Frequency-Domain Oversampling
IEEE Communications Letters, 2012A technique based on the frequency-domain oversampling in Single-Carrier Frequency-Domain Equalization is proposed. Simulation results show that the proposed system based on frequency domain oversampling outperforms the conventional system in static frequency-selective channel.
Xiaohui Zhang, Enqing Chen, Xiaomin Mu
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Spectroscopy in the Frequency Domain
2012In the same way as we can not visit a distant extrasolar planet to study its properties, the atomic world lies beyond our direct reach. The human being is only capable of handling objects of a certain size—both the very large and the very small are outside of our immediate reach.
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