Results 11 to 20 of about 1,238,948 (209)

Cross-correlation function in the interpretation of potential fields anomalies of strike-slip nature [PDF]

E3S Web of Conferences, 2023
In the study, a comparison of correlation characteristics that can be obtained when analyzing areal geophysical data in COSCAD 3D, GIS INTEGRO software, as well as in custom software with a novel approach, has been conducted.
Asoskov Artem, Matykina Darya
doaj   +2 more sources

Nonreciprocal Green’s function retrieval by cross correlation

The Journal of the Acoustical Society of America, 2006
The cross correlation of two recordings of a diffuse acoustic wave field at different receivers yields the Green’s function between these receivers. In nearly all cases considered so far the wave equation obeys time-reversal invariance and the Green’s function obeys source-receiver reciprocity.
Wapenaar, C.P.A. (author), Wapenaar, C.P.A.   +1 more
openaire   +5 more sources

Fluctuations of thermal variables investigated by cross-correlation function

Physical Review E
Fluctuations in conjugate thermodynamic variables are studied using the cross-correlation function. A new procedure is given enabling the derivation of fluctuation formulas for a system in equilibrium. Specifically, the cross-correlation function between heat and temperature is employed for thermal variables.
Garden, Jean-Luc
openaire   +5 more sources

Parameter Estimation of LFM Signal in Low Signal-to-Noise Ratio Using Cross-Correlation Function

Advances in Electrical and Electronic Engineering, 2021
The pulse with intra-pulse modulation plays an important role in the design of radar systems. The first class of the signals type is the linear frequency modulation technique.
Minh Van Duong, Jiri Vesely, Petr Hubacek, Premysl Janu, Phan Nhat Giang   +4 more
doaj   +1 more source

Introduction and application of transfer function model to predict the process of rainfall-groundwater level in Golestan province [PDF]

رویکردهای نوین در مهندسی آب و محیط زیست, 2023
Groundwater is one of the most valuable water resource in Iran, which is mainly influenced by rainfall patterns in a region. In the present study, 30-years rainfall and groundwater level data were used in the three watersheds of Galikesh, Ramian and ...
Youl Aman Nazeri, Nader Jandaghi, Mojtaba G. Mahmoodlu, Majid Azimmohseni   +3 more
doaj   +1 more source

Cross-Correlation-Function-Based Multipath Mitigation Method for Sine-BOC Signals

Radioengineering, 2012
Global Navigation Satellite Systems (GNSS) positioning accuracy indoor and urban canyons environments are greatly affected by multipath due to distortions in its autocorrelation function.
H. H. Chen, W. M. Jia, M. L. Yao
doaj   +1 more source

A GROUP-GALAXY CROSS-CORRELATION FUNCTION ANALYSIS IN zCOSMOS [PDF]

The Astrophysical Journal, 2012
We present a group-galaxy cross-correlation analysis using a group catalog produced from the 16,500 spectra from the optical zCOSMOS galaxy survey. Our aim is to perform a consistency test in the redshift range 0.2 < z < 0.8 between the clustering strength of the groups and mass estimates that are based on the richness of the groups.
Iovino, A., Kampczyk, P., Kovac, K., Lamareille, F., Le Borgne, J-F, Le Brun, V., Maier, C., Mignoli, M., Pelló, R., Peng, Y., Perez Montero, E., Presotto, V., Silverman, J., Tanaka, M., Tasca, L., Tresse, L., Vergani, D., Zucca, E., Barnes, L., Bordoloi, R., Cappi, A., Cimatti, Alessandro, Coppa, G., Koekemoer, A. M., Lopez-Sanjuan, C., Mccracken, H. J., Moresco, M., Nair, P., Pozzetti, L., Welikala, N., Knobel, C., Lilly, S. J., Carollo, C. M., Contini, T., Kneib, J-P, Le Fevre, O., Mainieri, V., Renzini, A., Scodeggio, M., Zamorani, G., Bardelli, S., Bolzonella, M., Bongiorno, A., Caputi, K., Cucciati, O., Torre, S., Ravel, L., Franzetti, P., Garilli, B.   +48 more
openaire   +8 more sources

On the possibility of breaking the heterodyne detection quantum noise limit with cross-correlation

, 2021
The cross-correlation sensitivity of two identical balanced photodiode heterodyne receivers is characterized. Both balanced photodiodes receive the same weak signal split up equally, a situation equivalent to an astronomical spatial interferometer.
F. E. Besser (14382051), E. A. Michael (14382048)   +1 more
core   +1 more source

A NEW METHOD FOR SIDELOBE SUPPRESSION IN THE AMBIGUITY FUNCTION OF SIGNALS MODULATED BY PSEUDO-RANDOM SEQUENCES [PDF]

Radio Physics and Radio Astronomy
Subject and Purpose. One of the main challenges in achieving high-accuracy radar target parameter determination and improving radar system noise immunity is the presence of sidelobes in the ambiguity function of the used signals, especially when these ...
K. O. Lukin, V. M. Konovalov, L. V. Yurchenko   +2 more
doaj   +1 more source

SIGNAL RELAY TIME MEASURER REFLECTED FROM A SMALL PURPOSE AT ITS LOCATION OVER THE SEA

Сучасні інформаційні системи, 2020
In the article possibility of account of phase fluctuations of signals reflected is examined from littlepitch aims location, during optimization of process of measuring of time of delay of signal.
Oksana Biesova, Vladimir Karlov, Olena Lukashuk, Valentin Petrushenko   +3 more
doaj   +1 more source