Results 271 to 280 of about 559,864 (310)

Classification of Elbow Electormyography Signals based on Directed Transfer Functions

2008 International Conference on BioMedical Engineering and Informatics, 2008
A new approach for classification of electromyography (EMG) of the flexion and extension signals is introduced here. Multivariate Autoregressive (MVAR) model has been applied to a two-channel set of EMG signals from the biceps and triceps muscles during flexion and extension positions of the elbow.
Rhonira Latif, Saeid Sanei, Kianoush Nazarpour   +2 more
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Transfer functions for UHF partial discharge signals in GIS

11th International Symposium on High-Voltage Engineering (ISH 99), 1999
The principles of electromagnetic radiation by partial discharges (PD) in gas insulated substations (GIS) are described. Calculated transfer functions are presented, showing that transverse electric modes are predominant for radial PD currents in the coaxial geometry.
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Calculation of playback signals from MFM images using transfer functions

Journal of Magnetism and Magnetic Materials, 1999
Magnetic force microscopy has proven to be a suitable tool for analysis of high-density magnetic recording materials. Comparison of the MFM image of a written signal with the actual read-back signal of the recording system can give valuable insight in the recording properties of both heads and media.
Vellekoop, S.J.L., Abelmann, L., Porthun, S., Lodder, J.C., Miles, J.J.   +4 more
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Signal processors with transfer function coefficients determined by timing

IEEE Transactions on Circuits and Systems, 1982
Signal processors are proposed which can be implemented using only delay elements, analog gates, an unweighted summer and a low-pass filter or integrator. It is shown that in some cases even the summer and the low-pass filter can be omitted. The transfer function coefficients depend on timing, and are independent of values or even value ratios of ...
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Symbolic transfer functions for MESFET small-signal parameter extraction

IEE Proceedings G Circuits, Devices and Systems, 1991
The paper describes a technique whereby directed graphs can be used to represent the interactions within an active microwave device, described by means of a lumped equivalent circuit. Analytical transfer functions representing the two-port scattering parameter matrix are evaluated.
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Transfer function approach to signal discrimination of ULF geomagnetic data

Physics and Chemistry of the Earth, Parts A/B/C, 2004
Abstract In order to study earthquake-related ULF geomagnetic field changes, it is important to discriminate the noises such as magnetic pulsations originated from solar–terrestrial interactions and artificial noises from DC-driven trains and factories.
M. Harada, K. Hattori, N. Isezaki
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Transfer-Functions Characterizing the Propagation of AE-Signals

1983
In order to evaluate defects in AE-testing there are three basic problems: Firstly, we have to know relationships between the signal parameters from the AE-sources of different fracture mechanical processes. In the area of NDT the most important are plastic deformation and crack propagation.
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Signal Flow Graphs for Getting Transfer Functions of Active Filters

IEEE Latin America Transactions, 2008
A method to obtain transfer functions of active filters with a single operational amplifier is obtained. The method relies on signal-flow graphs and the theory of Mason which simplifies greatly the approach for getting the same goal but intimidating formulae.
J.A. Esquivel, F.L. De Luna, F. Morales, J.M. Esquivel   +3 more
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Signal noise based transfer function approach for reliability estimation of ultrasonic inspection

Ultrasonics, 2019
In recent years several methods for reducing the burden of experimentation for obtaining Probability of Detection (PoD) curves have been proposed, especially involving the use of numerical simulation. In particular, there is much interest in being able to estimate the PoD capabilities of a given NDE method, target embodiment and material, provided this
Mohamed Subair Syed Akbar Ali, Anish Kumar, Prabhu Rajagopal   +2 more
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Small Signal Transfer Function of Periodically Dispersion-Compensated Optical Link for Intensity Modulated Signals

Journal of Lightwave Technology, 2009
We present analytical expressions for the transfer function of periodically dispersion compensated optical links within intensity-modulated optical transmission systems. The accuracy of the proposed expressions is confirmed through the simulation based on the split-step Fourier method.
null Jun Haeng Lee, T. Otani
openaire   +1 more source