Results 1 to 10 of about 3,222 (114)

Multiple-Cumulant-Matrices-Based Method for Exact NF Polarization Localization with COLD Array [PDF]

open access: yesSensors
As a key technology for the fifth-generation of mobile communications, massive MIMO systems enable massive user access via large-scale arrays. However, their dense deployment extends the near-field (NF) region, introducing new localization complexities ...
Jiefeng Zheng   +5 more
doaj   +2 more sources

A Cumulant-Based Method for Acquiring GNSS Signals [PDF]

open access: yesSensors
Global Navigation Satellite Systems (GNSS) provide positioning, velocity, and time services for civilian applications. A critical step in the positioning process is the acquisition of visible satellites in the sky.
He-Sheng Wang, Hou-Yu Wang, Dah-Jing Jwo
doaj   +2 more sources

Anti-electromagnetic interference method based on high-order cumulant method and PRI sorting [PDF]

open access: yesITM Web of Conferences, 2022
Facing the increasingly complex electromagnetic environment, how to make the detection instrument still have better detection performance is one of the current research hotspots.
Yu Zhaoyang, Lin Wei, Yu Yudan
doaj   +1 more source

Reduced cumulant models for macroscopic dynamics of Kuramoto ensemble with multiplicative intrinsic noise [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика, 2021
 Abstract. The purpose of this work is developing reduced models describing the macroscopic dynamics of the Kuramoto ensemble with multiplicative intrinsic noise on the basis of the method of circular cumulants. Methods.
Goldobin, Denis S.   +1 more
doaj   +1 more source

Equation-of-Motion Coupled-Cluster Cumulant Green’s Function for Excited States and X-Ray Spectra

open access: yesFrontiers in Chemistry, 2021
Green’s function methods provide a robust, general framework within many-body theory for treating electron correlation in both excited states and x-ray spectra.
F. D. Vila   +4 more
doaj   +1 more source

Status Recognition of Magnetic Fluid Seal Based on High-Order Cumulant Image and VGG16

open access: yesFrontiers in Materials, 2022
A magnetic fluid seal is often used in complex working conditions with harsh environmental requirements. Timely and accurate identification of the seal status can help avoid the major economic losses and even casualties caused by the seal failure ...
Aixin Dai   +5 more
doaj   +1 more source

Line spectrum extraction method of underwater targets based on the polarization characteristic

open access: yesAIP Advances, 2023
In order to suppress the environmental noise interference of underwater targets, a line spectrum extraction method is proposed based on the polarization characteristic of underwater acoustic signals received by a single vector sensor.
Xue Han   +3 more
doaj   +1 more source

Interval Probabilistic Energy Flow Calculation of CCHP Campus Microgrid Considering Interval Uncertainties of Distribution Parameters

open access: yesIEEE Access, 2020
Due to the absence of historical data and the errors of measurement instruments, there may be uncertainties in the distribution parameters of the random variables describing the uncertain fluctuations of node power including renewable energy station ...
Yuquan Xie   +6 more
doaj   +1 more source

Dependence on temperature and pressure of second cumulant and correlation effects during EXAFS in intermetallic alloys

open access: yesHeliyon, 2021
The present article is aimed to investigate the second cumulants, and the thermodynamic quantities are dependent on temperature and pressure in the X-ray absorption fine structure spectrum.
Nguyen Ba Duc
doaj   +1 more source

Discounted payments theorems for large deviations

open access: yesLietuvos Matematikos Rinkinys, 2016
Let Z(t) = Σ j=1N(t) Xj, t ≥ 0, be a stochastic process, where Xj are independent identically distributed random variables, and N(t) is non-negative integer-valued process with independent increments.
Aurelija Kasparavičiūtė   +1 more
doaj   +1 more source

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