Results 261 to 270 of about 108,372 (297)

Suppression of radar clutter with a weighted moving average filter

Electronics and Communications in Japan (Part I: Communications), 1994
AbstractUnwanted radar echos, called clutter, make the detection of a target difficult. Therefore various methods have been proposed to suppress such clutters. However, since most of these methods are intended to improve single‐pulse detection performance, the target often disappears by pulse‐to‐pulse fluctuations.In this paper, as a method of ...
Satoshi Takahashi, Susumu Miwa
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Detrending fluctuation analysis based on moving average filtering

Physica A: Statistical Mechanics and its Applications, 2005
Abstract Detrended fluctuation analysis (DFA) is a scaling method commonly used for detecting long-range correlations in nonstationary time series. Applications range from financial time series to physiological data. However, as the removal of trends in DFA is based on discontinuous polynomial fitting, oscillations in the fluctuation function and ...
Jose Alvarez-Ramirez, Eduardo Rodriguez, Juan Carlos Echeverría   +2 more
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Estimation for ADC's INL Using a Moving-Average Filter

2008 International Conference on Computer and Electrical Engineering, 2008
The sine wave code density test is the most prevalent technique to estimate integral nonlinearity (INL) of ADCs. The main disadvantage of this method is that the number of samples tends to increase exponentially with the resolution of ADCs. The moving-average filtered sine wave code density test under coherent sampling condition is proposed in this ...
Minshun Wu, Guican Chen
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Statistical design of autoregressive-moving average digital filters

IEEE Transactions on Acoustics, Speech, and Signal Processing, 1979
Procedures are presented for the systematic design of digital filters that contain poles and zeros. The procedures are simple, fast, and effective. All of the important algorithms are of the Levinson-type. The first key idea in the paper is that one may begin a design by posing a linear prediction problem for a stochastic sequence. The second is that a
Scharf, Louis L., Luby, James C.
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Moving average filtering with deconvolution (MAD) for hidden Markov model with filtering and correlated noise

European Biophysics Journal, 2019
Ion channel data recorded using the patch clamp technique are low-pass filtered to remove high-frequency noise. Almanjahie et al. (Eur Biophys J 44:545-556, 2015) based statistical analysis of such data on a hidden Markov model (HMM) with a moving average adjustment for the filter but without correlated noise, and used the EM algorithm for parameter ...
Ibrahim M. Almanjahie, Ramzan Nazim Khan, Robin K. Milne, Takeshi Nomura, Boris Martinac   +4 more
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Shape Analysis and Reduction of the Morphological Basis for Digital Moving-Average Filters

SIAM Journal on Applied Mathematics, 1991
Summary: A digital moving-average filter with nonnegative mask weights that sum to unity is a gray-scale morphological filter. As such, it possesses a representation as a maximum of erosions over its morphological basis. The present paper investigates the special properties of the digial moving- average morphological basis, these properties being, for ...
Dougherty, Edward R., Kraus, Eugene J.
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A harmonic elimination approach based on moving average filter for cascaded DSTATCOM

IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society, 2014
Distribution STATic synchronous COMpensator (DSTATCOM) has been proved an effective approach to compensate reactive and harmonic current in distribution network. However, DC-link voltages of H-bridge cascaded DSTATCOM contain 100Hz (double grid frequency) voltage harmonics due to reactive compensation current, these harmonics will also exist in the ...
Yue Wang, Kun Yang, Chao He, Guozhu Chen
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30‐3: Matched Moving‐Window Averaging Filter

SID Symposium Digest of Technical Papers
Some display measurement tasks with imaging light measurement devices (LMDs) require evaluation of the target quantity (e.g. luminance) exactly over the dimension of individual pixels, single lines or columns of the display under test (DUT). This can be achieved, in the case of high image sampling ratios, by application of moving window average (MWA ...
Michael E. Becker, Tobias Steinel
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CASMA-crank angle synchronous moving average filtering

Proceedings of the 1999 American Control Conference (Cat. No. 99CH36251), 1999
At the Institute of Automatic Control at Darmstadt University of Technology, internal combustion engines are investigated on a dynamical engine test stand. During the experiments it became obvious, that ordinary time synchronous filtering of the measured signals is not suitable for this special application.
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Adaptive Filtering Approach for Denoising Electrocardiogram Signal Using Moving Average Filter

Journal of Medical Imaging and Health Informatics, 2015
The noise within an electrocardiogram signal can cause errors that are viewed in the results of different ECG characteristics, in both amplitude and time interval which ultimately lead to a incorrect diagnosis of cardiac disease. In this paper, a new approach of de-noising the electrocardiogram signal is proposed using multi-iteration of the moving ...
Sameer K. Salih, S. A. Aljunid, Syed M. Aljunid, Oteh Maskon   +3 more
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