Results 21 to 30 of about 4,222,401 (192)

A Calibration Method Based on Transfer Function Extraction for Cartesian Vector Modulator

open access: yesIEEE Access, 2020
In this paper, a calibration approach based on transfer function extraction for the Cartesian vector modulator (VM) is presented. Three kinds of VM models-the ideal VM model, the frequency-dependent VM model and the modified frequency-dependent VM model,
Chao Wang   +4 more
doaj   +1 more source

Improved Prediction Model of the Friction Error of CNC Machine Tools Based on the Long Short Term Memory Method

open access: yesMachines, 2023
Friction is one of important factors that cause contouring errors, and the friction error is difficult to predict because of its nonlinearity. In this paper, a prediction model of the friction error of a servo system is proposed based on the Long Short ...
Tao Wang, Dailin Zhang
doaj   +1 more source

Rational inner functions in the Schur-Agler class of the polydisk [PDF]

open access: yes, 2010
Every two variable rational inner function on the bidisk has a special representation called a transfer function realization. It is well known and related to important ideas in operator theory that this does not extend to three or more variables on the ...
Knese, Greg
core   +3 more sources

Optimal Artificial Neural Network using Particle Swarm Optimization [PDF]

open access: yesE3S Web of Conferences, 2023
Artificial neuron networks (ANNs) are widely used for data analyticS in broad areas of engineering applications and commercial services. The ANN has one to two hidden layers.
Alam M. N.   +4 more
doaj   +1 more source

A Bayesian palaeoenvironmental transfer function model for acidified lakes [PDF]

open access: yes, 2008
A Bayesian approach to palaeoecological environmental reconstruction deriving from the unimodal responses generally exhibited by organisms to an environmental gradient is described.
A Korhola   +36 more
core   +1 more source

Research on simplified modeling of large-scale wind farms based on equivalent transfer function and aggregate equivalent

open access: yesFrontiers in Energy Research, 2023
Introduction: In grid-connected research of large-scale wind farms, the problem of long simulation time exists in the research based on detailed model. In order to realize the fast simulation and grid-connected transient research of wind farm, this paper
Ran Ding   +5 more
doaj   +1 more source

Robust identification from band-limited data [PDF]

open access: yes, 1997
Consider the problem of identifying a scalar bounded-input/bounded-output stable transfer function from pointwise measurements at frequencies within a bandwidth.
Baratchart, L.   +3 more
core   +1 more source

Contribution analysis of vibration mode utilizing operational TPA

open access: yesMechanical Engineering Journal, 2016
Operational transfer path analysis (OTPA) calculates contributions of reference points to response point vibration by using only operational data.
Junji YOSHIDA, Koki TANAKA
doaj   +1 more source

Linear and nonlinear identification of the carotid sinus baroreflex in the very low‐frequency range

open access: yesPhysiological Reports, 2022
Since the arterial baroreflex system is classified as an immediate control system, the focus has been on analyzing its dynamic characteristics in the frequency range between 0.01 and 1 Hz. Although the dynamic characteristics in the frequency range below
Toru Kawada   +3 more
doaj   +1 more source

Visualization of Medical Volume Data Based on Improved K-Means Clustering and Segmentation Rules

open access: yesIEEE Access, 2021
Accurate extraction and visualization of the target features are important in medical visualization, allowing the user to get a meaningful view of their targets.
Ji Ma, Yazan Ahmad Muad, Jinjin Chen
doaj   +1 more source

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