Results 11 to 20 of about 676,778 (198)
Fitting a function to time-dependent ensemble averaged data [PDF]
Scientific Reports, 2018 Time-dependent ensemble averages, i.e., trajectory-based averages of some observable, are of importance in many fields of science. A crucial objective when interpreting such data is to fit these averages (for instance, squared displacements) with a ...
Karl Fogelmark +3 more
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Algorithms for Spectral Analysis of Irregularly Sampled Time Series [PDF]
Journal of Statistical Software, 2004 In this paper, we present a spectral analysis method based upon least square approximation. Our method deals with nonuniform sampling. It provides meaningful phase information that varies in a predictable way as the samples are shifted in time.
Adolf Mathias +5 more
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A Novel Error Correction Approach to Improve Standard Point Positioning of Integrated BDS/GPS
Sensors, 2020 To improve the standard point positioning (SPP) accuracy of integrated BDS (BeiDou Navigation Satellite System)/GPS (Global Positioning System) at the receiver end, a novel approach based on Long Short-Term Memory (LSTM) error correction recurrent neural
Luyao Du +3 more
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DESIGN OF STATE ESTIMATOR AND BAD DATA DETECTION MODULE IN POWER SYSTEM BY USING PERCEPTRON ARTIFICIAL NEURAL NETWORK [PDF]
مجله مدل سازی در مهندسی, 2011 State estimation is a key tool in energy management system for monitoring, control and static security analysis of power systems. Weighted least square, as a conventional method for solving state estimation problem, has deficiencies such as ill ...
حسین Sharifzadeh +2 more
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A weighted least squares method for inverse dynamic analysis [PDF]
Computer Methods in Biomechanics and Biomedical Engineering, 2008 Internal forces in the human body can be estimated from measured movements and external forces using inverse dynamic analysis. Here we present a general method of analysis which makes optimal use of all available data, and allows the use of inverse dynamic analysis in cases where external force data is incomplete.
Antonie J, van den Bogert, Anne, Su
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Promet (Zagreb), 2017 Due to unbalanced speed-density observations, the one-regime traffic fundamental diagram and speed-density relationship models using least square method (LSM) cannot reflect actual conditions under congested/jam traffic. In that case, it is inevitable to
Chunbo Zhang, Xiucheng Guo, Zhenping Xi
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Remote Sensing, 2022 Weighted average temperature (Tm) plays a crucial role in global navigation satellite system (GNSS) precipitable water vapor (PWV) retrieval. Aiming at the poor applicability of the existing Tm models in Europe, in the article, we used observations from ...
Bingbing Zhang +7 more
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Accurate Solution of Weighted Least Squares by Iterative Methods [PDF]
SIAM Journal on Matrix Analysis and Applications, 2001 Ill-conditioned weighted least squares problems are solved by a special Krylov-subspace method. It is shown that this method yields answers with small forward errors. Computational studies are also presented.
Bobrovnikova, Elena Y. +1 more
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Sultan Qaboos University Journal for Science, 2007 A new, non-iterative technique for synthesizing equispaced linear arrays with symmetric excitation is proposed. The methods is on the computation of an eigenvector of an appropriate real, Symmetric and positive-definite matrix.
J.A. Jervase, I.H. Zabalawi
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Measurement + Control, 2020 Traditionally, successive approximation method is applied to the vibration-level adjustment of vibration calibration system, which leads to a time-consuming work for low-frequency vibration calibration.
Chao Li, Zhangwei Chen
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