Results 41 to 50 of about 1,238,948 (209)

AUTOCORRELATION AND CROSS-CORRELATION FLOW ANALYSIS ALONG THE CONFLUENCE OF THE KUPA AND SAVA RIVERS

open access: yesRudarsko-geološko-naftni Zbornik, 2021
In this paper, an autocorrelation and cross-correlation analysis of the flow of the Kupa and Sava rivers was performed. The analysis was performed at hydrological stations close to the confluence of these two rivers near the city of Sisak, based on data ...
Marta Caren, Krešimir Pavlić
doaj   +1 more source

Cross-Correlation Function for Accurate Reconstruction of Heterogeneous Media

open access: yesPhysical Review Letters, 2013
Porous media, heterogeneous materials, and biological tissues are examples of ubiquitous disordered systems, the understanding of which and any physical phenomenon in them entails having an accurate model. We show that a new reconstruction method based on a cross-correlation function and a one-dimensional raster path provides an accurate description of
Pejman, Tahmasebi, Muhammad, Sahimi
openaire   +3 more sources

macf : Moving Auto- and Cross-correlation Function [PDF]

open access: yes, 2020
The function macf computes (and by default plots) estimates of the moving auto- and cross-correlation matrix of non-stationary (and stationary) time series.
Alshammri, Fayed Awdah M
core  

Detection of karst collapses through microtremor surface waves based on windowing cross-correlation function

open access: yesCarsologica Sinica
The study area is located in the karst development area of Pingxiang in the west of Jiangxi Province, China. The landform of this area is complex, low in the northwest and high in the southeast. The fold action and gravitational sliding action led to the
Tong SONG   +4 more
doaj   +1 more source

The cross correlation function of partially coherent vortex beam

open access: yesOptics Express, 2014
This work presents theoretical analysis on the cross correlation function (CCF) of partially coherent vortex beam (PCVB), where the relation of the number of the rings of CCF dislocations and orbital angular momentum (OAM) of PCVB is analyzed in detail.
Pan Feng, Ding, Jixiong, Pu
openaire   +2 more sources

Cross-correlation of PM2.5 time series between Beijing and Qinhuangdao.

open access: yes, 2018
(A) An illustration of the time-lagged correlation of PM2.5measurement time series between Beijing and Qinhuangdao. The dashed line refers to the aligned PM2.5 time series in Qinhuangdao, which is shifted to the left by approximately 4 h to attain the ...
Jiansheng Wu (193208)   +3 more
core   +1 more source

Using the Features Extracted From the Ambient Noise Cross-Correlation Function to Evaluate the Performance of Broadband Seismograph

open access: yesIEEE Access, 2022
Broadband seismographs are used to collect seismic data over an extended period. Temperature, pressure, and humidity are field variables that can have an impact on the broadband seismograph’s performance as well as the accuracy of observational ...
Xue Bao, Fang Ye, Han Zhang, Chunwei Jin
doaj   +1 more source

The Galaxy-Absorber Cross-Correlation Function

open access: yes, 1997
We describe an analysis of the galaxy-absorber cross-correlation function as a function of velocity separation, impact parameter separation, and absorber Lyman alpha equivalent width on impact parameter scales that extend up to 1 Mpc.
Lanzetta, Kenneth M.   +2 more
openaire   +2 more sources

Auto-Correlation Functions of Chaotic Binary Sequences Obtained by Alternating Two Binary Functions

open access: yesDynamics
This paper discusses the auto-correlation functions of chaotic binary sequences obtained by a one-dimensional chaotic map and two binary functions. The two binary functions are alternately used to obtain a binary sequence from a chaotic real-valued ...
Akio Tsuneda
doaj   +1 more source

Application study of Costas arrays in multiuser radar systems

open access: yesTongxin xuebao, 2010
The construction and performance of frequency hopping codes were discussed but the emphasis was laid on the construction of Costas arrays.The frequency hopping codes called Costas arrays could be designed to have almost ideal auto-ambiguity and good ...
YAO Jian-guo1, HUANG Qing2
doaj   +2 more sources

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