Results 251 to 260 of about 343,701 (293)

Mean state densities, temperatures and winds during the MAC/SINE and MAC/EPSILON campaigns

Journal of Atmospheric and Terrestrial Physics, 1990
Two field campaigns were conducted, primarily in northern Norway, in the summer and late autumn of 1987; these yielded a total of 41 in situ temperature profiles and 67 in situ wind profiles. Simultaneously, ground-based measurements were conducted of OH temperatures and sodium lidar temperatures for 85 and 104 hours, respectively.
F.-J. Lübken, U. von Zahn, A. Manson, C. Meek, U.-P. Hoppe, F.J. Schmidlin, J. Stegman, D.P. Murtagh, R. Rüster, G. Schmidt, H.-U. Widdel, P. Espy   +11 more
openaire   +1 more source

Measurement of four terminal-pair impedances by means of a sine-fit based technique

Proceedings of the 20th IEEE Instrumentation Technology Conference (Cat. No.03CH37412), 2004
This paper deals with an impedance measuring system that can be arranged by means of general purpose instruments usually available in most calibration laboratories, without requiring dedicated and costly devices. Impedance measurements are performed by employing a comparison technique and taking advantage of a sine-fit processing to make negligible the
CARULLO, Alessio, PARVIS, Marco, VALLAN, Alberto   +2 more
openaire   +2 more sources

Real-time detection of sine waves by means of a discrete Fourier transform

2009 IEEE International Workshop on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications, 2009
This paper deals with the problem of probabilistic detection of weak sine waves immersed in noise. The analysis is performed in the frequency domain after a discrete Fourier transform, and it is suited for real-time applications. The detection and false alarm probabilities are provided in analytical form as functions of the sampling parameters and the ...
openaire   +2 more sources

Dynamic testing of A/D converters by means of the three-parameter sine-fit algorithm

Measurement, 2007
Abstract The performances of the three-parameter sine-fit algorithm depend upon normalized frequency accuracy. In this paper a constraint for the absolute error of the normalized frequency is derived to ensure that the dynamic parameters of an analog-to-digital converter (ADC) are accurately estimated by means of the three-parameter sine-fit ...
Daniel Belega, Dominique Dallet
openaire   +1 more source

Approximation to the Location Parameters Modal, Mean, Median; Introduction of the Sine Derivative

2020
It is difficult to reconcile the location parameter of the maximum of the frequency of the measured values with the maximum of a probability function.
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Dynamic Testing of Analog-to-Digital Converters by Means of the Sine-Fitting Algorithms

2013
The chapter is dedicated to dynamic testing of Analog-to-Digital Converters (ADCs) by means of both time- and frequency-domain sine-fitting algorithms (SFAs). At first the sine-fitting procedure used for the estimation of SIgnal-to-Noise And Distortion ratio (SINAD) and Effective Number Of Bits (ENOB) parameters is described.
Petri, Dario, Daniel Belega, Dominique Dallet   +2 more
openaire   +1 more source

Democracy, its meaning, logic and sine qua non

1993
Istanbul Barosu Dergisi, Journal of the Istanbul Bar ...
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Enhanced Image Quantization Through Hybrid Sine Cosine Optimization and K-Means Clustering

2023 3rd International Conference on Emerging Frontiers in Electrical and Electronic Technologies (ICEFEET), 2023
Vinayakanitesh Pasumurthi, Guna Venkata Ayyappa Ramineni, Ravi Kumar Jatoth   +2 more
openaire   +1 more source

Oscilloscopic determination of kinetic parameters of electrode reactions by means of sine wave current

Recueil des Travaux Chimiques des Pays-Bas, 1962
AbstractAn oscilloscopic method for the rapid determination of the kinetic parameters of an electrode reaction, making use of sine wave current is proposed. The features of the method as compared with the cyclic current step method of Wijnen and Smit are discussed. It is shown that the disturbing effect of the double layer capacity can be accounted for
openaire   +1 more source

Steady-State Phasor Measurement by Means of a Linearized Multiharmonic Sine-Fit Algorithm

2023 IEEE 13th International Workshop on Applied Measurements for Power Systems (AMPS), 2023
Daniel Belega, Dario Petri
openaire   +1 more source