Results 41 to 50 of about 1,799 (215)

SIGNALS FAST ACQUISITION ALGORITHM FOR GNSS RECEIVERS

open access: yesРадіоелектронні і комп'ютерні системи, 2016
The synthesis of digital algorithm for fast search of navigation signals in GNSS is accomplished. The architecture of the corresponding device for quick search of signals is discussed, as well as its capabilities in comparison with traditional approaches.
И. В. Буняева
doaj   +1 more source

Spatially Smoothed TF-Root-MUSIC for DOA Estimation of Coherent and Non-Stationary Sources Under Noisy Conditions

open access: yesIEEE Access, 2021
This paper proposes a method for efficient Direction-of-Arrival (DOA) estimation of coherent and non-stationary sources under adverse noise conditions.
Ruslan Zhagypar   +2 more
doaj   +1 more source

Enhanced Coprime Array Structure and DOA Estimation Algorithm for Coherent Sources

open access: yesSensors
This paper presents a new enhanced coprime array for direction of arrival (DOA) estimation. Coprime arrays are capable of estimating the DOA using coprime properties and outperforming uniform linear arrays.
Xiaolei Han, Xiaofei Zhang
doaj   +1 more source

Coherent Combining and Long Coherent Integration for BOC Signal Acquisition under Strong Interference

open access: yesNavigation, 2022
A coherent combining and long coherent integration (CCLCI) scheme is presented for standalone direct acquisition of binary offset carrier (BOC) signals under strong radio frequency interference (RFI).
Chun Yang   +3 more
doaj   +1 more source

Research on AUV Underwater Localization Method Based on an n-Shaped Array

open access: yesSensors
During continuous navigation of the mother ship, an autonomous underwater vehicle (AUV) can be recovered through an underwater hangar, and the accurate localization of the AUV relative to the mother ship is a key step in the recovery process.
Chuang Han   +3 more
doaj   +1 more source

Coherent Signal Direction Finding With Sensor Array Based on Back Propagation Neural Network

open access: yesIEEE Access, 2019
An algorithm based on back propagation neural network and particle swarm optimization is proposed to solve the direction of arrival (DOA) estimation of coherent signals received by the sensor array in colored noise environment.
Baoyu Guo, Jiaqi Zhen
doaj   +1 more source

An Improved Multiple-Toeplitz Matrices Reconstruction Algorithm for DOA Estimation of Coherent Signals [PDF]

open access: yesRadioengineering, 2021
The Toeplitz matrix reconstruction algorithms exploit the row vector of an array output covariance matrix to reconstruct Toeplitz matrix, which provide the direction-of-arrival (DOA) estimation of coherent signals.
B. B. Qi, W. Li
doaj  

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

open access: yesFEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura   +2 more
wiley   +1 more source

Tensor Approach to DOA Estimation of Coherent Signals with Electromagnetic Vector-Sensor Array

open access: yesSensors, 2018
This paper addresses the direction-of-arrival (DOA) estimation problem using a uniform rectangular array with electromagnetic vector-sensors in correlated/coherent signal environments. The polarization information is separated from the steering matrix to
Ming-Yang Cao   +3 more
doaj   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

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