Results 1 to 10 of about 877,381 (149)

Cyclostationary Approach to the Analysis of the Power in Electric Circuits under Periodic Excitations

open access: yesApplied Sciences, 2021
This paper proposes a cyclostationary based approach to power analysis carried out for electric circuits under arbitrary periodic excitation. Instantaneous power is considered to be a particular case of the two-dimensional cross correlation function (CCF)
Timofey Shevgunov   +2 more
doaj   +1 more source

Characteristic functions for cosmological cross-correlations

open access: yesMonthly Notices of the Royal Astronomical Society, 2023
ABSTRACT We introduce a novel unbiased, cross-correlation estimator for the one-point statistics of cosmological random fields. One-point statistics are a useful tool for analysis of highly non-Gaussian density fields, while cross-correlations provide a powerful method for combining information from pairs of fields and separating them ...
Patrick C Breysse   +2 more
openaire   +4 more sources

Detection and Parameter Estimation Analysis of Binary Shift Keying Signals in High Noise Environments

open access: yesSensors, 2022
In this paper, a new method for detecting and estimating the parameters of a binary phase shift keying (BPSK) signal, based on a cross-correlation function, is proposed. The proposed method consists of two stages.
Van Minh Duong   +4 more
doaj   +1 more source

Optimal Stacking of Noise Cross-Correlation Functions

open access: yesGeophysical Journal International, 2022
SUMMARY Cross-correlations of ambient seismic noise are widely used for seismic velocity imaging, monitoring and ground motion analyses. A typical step in analysing noise cross-correlation functions (NCFs) is stacking short-term NCFs over longer time periods to increase the signal quality.
Xiaotao Yang   +5 more
openaire   +1 more source

Measurement of Film Structure Using Time-Frequency-Domain Fitting and White-Light Scanning Interferometry

open access: yesMachines, 2021
A new technique is proposed for measuring film structure based on the combination of time- and frequency-domain fitting and white-light scanning interferometry.
Xinyuan Guo, Tong Guo, Lin Yuan
doaj   +1 more source

Temperature Changes Effect on the Inner Product Vector Method and its Application to Structural Health Monitoring of Aircraft Industry [PDF]

open access: yesJournal of Aerospace Technology and Management, 2021
The purpose of the paper is to study the effect of temperature change on the theory of inner product vector (IPV). The IPV method can be used to detect structural damage. This study evaluates the IPV method ability to detect damage of an Airbus A320 slat-
Sattar Mohammadi Esfarjani, Mehdi Salehi
doaj   +1 more source

Analysis of the Effects Power-Inversion (PI) Adaptive Algorithm Have on GNSS Received Pseudorange Measurement

open access: yesIEEE Access, 2022
Power inversion algorithms (PI) are widely used by ant-jamming receivers in harsh environment, but it also induces pseudo-range measurement error which is fatal to high precision receivers. In this paper, it proposes a more accurate method based on the S
Xin Yang   +4 more
doaj   +1 more source

Optimization of the Unambiguity of Cross-Correlated Ultrasonic Signals through Coded Excitation Sequences for Robust Time-of-Flight Measurements

open access: yesSignals, 2021
The cross-correlation function (CCF) is an established technique to calculate time-of-flight for ultrasonic signals. However, the quality of the CCF depends on the shape of the input signals. In many use cases, the CCF can exhibit secondary maxima in the
Marius Schäfer   +3 more
doaj   +1 more source

Atmospheric stellar parameters from cross-correlation functions [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2017
Accepted by MNRAS. 12 pages, 12 figures. The code to retrieve the atmospheric stellar parameters from HARPS and HARPS-N spectra is available "at this url, https://github.com/LucaMalavolta/CCFpams"
Malavolta, L.   +4 more
openaire   +3 more sources

A New Cross-Correlation Algorithm Based on Distance for Improving Localization Accuracy of Partial Discharge in Cables Lines

open access: yesEnergies, 2020
Locating the partial discharge (PD) source is one of the most effective means to locate local defects in power cable lines. The sampling rate and the frequency-dependent characteristic of phase velocity have an obvious influence on localization accuracy ...
Xianjie Rao   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy