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Information Propagation Influenced by Population Heterogeneity Behavioral Adoption on Weighted Network

open access: yesComplexity, 2022
In the realistic world, various individuals have distinct personalities, preferences, and attitudes toward new information and behavior acceptance, called population heterogeneity. It is seldom taken into account and theoretically analyzed in information
Yajuan Cui   +4 more
doaj   +1 more source

Robust Adaptive Beamforming Algorithm for Sparse Array Based on Covariance Matrix Reconstruction Technology

open access: yesInternational Journal of Antennas and Propagation, 2022
When the array structure of the sparse arrays (SA) cannot be determined, the existing beamforming algorithms designed according to specific formations such as coprime arrays (CA), nested arrays (NA), etc. will fail.
Yuxi Du   +4 more
doaj   +1 more source

Semisupervised Graph Neural Networks for Traffic Classification in Edge Networks

open access: yesDiscrete Dynamics in Nature and Society, 2023
Edge networking brings computation and data storage as close to the point of request as possible. Various intelligent devices are connected to the edge nodes where traffic packets flow.
Yang Yang   +4 more
doaj   +1 more source

Fast Tensor-Based Joint Estimation for Time Delay and Angle of Arrival in OFDM System

open access: yesInternational Journal of Antennas and Propagation, 2022
Nowadays, the joint estimation of time delay (TD) and angle of arrival (AOA) using conventional vector structure suffers from the considerable complexity of multidimensional spectrum search.
Jinzhi Du   +4 more
doaj   +1 more source

A Novel Sparse Array for Localization of Mixed Near-Field and Far-Field Sources

open access: yesInternational Journal of Antennas and Propagation, 2021
As we all know, nested array can obtain a larger array aperture and more degrees of freedom using fewer sensors. In this study, we not only designed an enhanced symmetric nested array (ESNA), which achieved more consecutive lags and more unique lags ...
Yinsheng Wang   +4 more
doaj   +1 more source

Instantaneous Bandwidth Enhancement for Variable Inclination Continuous Transverse Stub Antenna

open access: yesInternational Journal of Antennas and Propagation, 2022
In this paper, a method was developed to achieve the instantaneous bandwidth enhancement of a variable inclination continuous transverse stub (VICTS) antenna.
Zheng Liu   +5 more
doaj   +1 more source

Robust direct position determination methods in the presence of array model errors

open access: yesEURASIP Journal on Advances in Signal Processing, 2018
Direct position determination (DPD) methods are known to have many advantages over the traditional two-step localization method, especially for low signal-to-noise ratios (SNR) and/or short data records.
Ding Wang   +4 more
doaj   +1 more source

Joint Estimation for Time Delay and Direction of Arrival in Reconfigurable Intelligent Surface with OFDM

open access: yesSensors, 2022
Recently, the joint estimation for time delay (TD) and direction of arrival (DOA) has suffered from the high complexity of processing multi-dimensional signal models and the ineffectiveness of correlated/coherent signals.
Jinzhi Du   +4 more
doaj   +1 more source

CRLB for joint estimation of TDOA, phase, FDOA, and Doppler rate

open access: yesThe Journal of Engineering, 2019
To avoid decline of FDOA estimation precision caused by relative Doppler companding, Doppler rate has to be considered and estimated jointly with TDOA, phase, and FDOA. However, CRLB of the joint estimation is still unclear.
Dexiu Hu   +4 more
doaj   +1 more source

Bias reduction for TDOA localization in the presence of receiver position errors and synchronization clock bias

open access: yesEURASIP Journal on Advances in Signal Processing, 2019
Time difference of arrival (TDOA) localization does not require time stamping of the source signal and is playing an increasingly important role in passive location.
Xin Chen   +4 more
doaj   +1 more source

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