Results 21 to 30 of about 104,088 (292)

Enhtheta: A new balanced filter for Edge Detection of Potential Field anomalies [PDF]

open access: yesمجله فیزیک زمین و فضا
Magnetic and gravity data are types of potential field data. The magnetic method is based on variations in the magnetic field caused by lateral differences in the magnetization of the subsurface sources.
Kamal Alamdar
doaj   +1 more source

The Study of Geological Structures in Suli and Tulehu Geothermal Regions (Ambon, Indonesia) Based on Gravity Gradient Tensor Data Simulation and Analytic Signal

open access: yesGeosciences, 2017
In early 2017, the geothermal system in the Suli and Tulehu areas of Ambon (Indonesia) was investigated using a gravity gradient tensor and analytic signal. The gravity gradient tensor and analytic signal were obtained through forward modeling based on a
Richard Lewerissa   +3 more
doaj   +1 more source

Hypercomplex Analytic Signals : Extension Of The Analytic Signal Concept To Complex Signals

open access: yes, 2007
Publication in the conference proceedings of EUSIPCO, Poznan, Poland ...
Stephen J. Sangwine, Nicolas Le Bihan
openaire   +3 more sources

Position Control of a Pneumatic Drive Using a Fuzzy Controller with an Analytic Activation Function

open access: yesSensors, 2022
The fuzzy logic controller, which uses an analytic activation function for the defuzzification procedure, was applied to the position control of a servo pneumatic drive controlled by a proportional valve.
Željko Šitum, Danko Ćorić
doaj   +1 more source

A Signal Theoretic Approach for Envelope Analysis of Real-Valued Signals

open access: yesIEEE Access, 2017
Analytic envelope is the most prevalent definition of envelopes of real-valued signals. However, analytic signals are not adopted by some envelope detectors in application.
Yanli Yang
doaj   +1 more source

Characterization of analytic phase signals

open access: yesComputers & Mathematics with Applications, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tao Qian, Qiuhui Chen
openaire   +1 more source

Negative frequencies in pulse propagation equations and the double analytic signal

open access: yesNew Journal of Physics, 2023
In recent years, the topic of negative frequencies has resurfaced in optics motivated by the optical analogue of Hawking radiation. We discuss the physical meaning of negative frequencies and the conditions under which they are relevant.
Raul Aguero-Santacruz, David Bermudez
doaj   +1 more source

Geophysical Assessment of Structurally Controlled Mineral Resources at Wadi El-Nakheel, Eastern Desert, Egypt

open access: yesResources
It is of great importance to evaluate simple methods to identify mineral occurrence for the future development of society. Applying a reconnaissance magnetic data analysis can help detect the main structural trends mounted to the occurrence of minerals ...
Mohamed Al Deep   +2 more
doaj   +1 more source

Application of ground magnetic and multi-frequency EM techniques for the Abu-Shihat radioactive prospect area, North Eastern Desert,Egypt

open access: yesAnnals of Geophysics, 2002
Land magnetic and electromagnetic data enhancement procedures were employed to follow the extensions of the observed anomalies on the surface downwards in the deeper levels and to recognize any possible relations between the localization of uranium ...
A. S. M. Assran
doaj   +1 more source

An analytical solution for the SSFP signal in MRI [PDF]

open access: yesMagnetic Resonance in Medicine, 2003
AbstractAmong previous analyses of the steady‐state free‐precession (SSFP) signal in rapid MRI, one treatment resulted in equations that require the evaluation of infinite binomial series. Here, an analytical solution is derived by a transformation into the power series expansion of the derivative of the inverse sine function, which is essentially a ...
Wolfgang, Hänicke, Horst U, Vogel
openaire   +2 more sources

Home - About - Disclaimer - Privacy