-
121
Modeling of digital spatial processing under conditions of troposphere propagation of centimeter radio waves for wireless telecommunication
Published 2025-02-01“…The performance of algorithms for direction-of-arrival estimation and beamforming in the troposphere can be evaluated using ray tracing simulation.Methods. …”
Get full text
Article -
122
Hyperspectral Simultaneous Anomaly Detection and Denoising: Insights From Integrative Perspective
Published 2024-01-01“…The proposed algorithm is efficiently solved by the well-designed linearized alternating direction method of multipliers with an adaptive penalty. …”
Get full text
Article -
123
Low Anterior Resection Syndrome: Pathophysiology, Risk Factors, and Current Management
Published 2022-10-01“…Low anterior resection syndrome (LARS) is a condition of anorectal dysfunction that occurs frequently following anal sphincter-preserving surgery for rectal cancer and can reduce the quality of life. …”
Get full text
Article -
124
Low-threshold dual-polarization electro-optic nonlinear activation functions
Published 2025-01-01“…This scheme relies on a structure composed of an optical power splitter and a thermo-optic modulator based on Mach–Zehnder interferometer, which are optimized by using direct binary search and particle swarm optimization algorithms. …”
Get full text
Article -
125
Low-Altitude Unmanned Aerial Vehicle Technology: Current Status and Prospects
Published 2025-04-01“…Through in-depth analysis of the current status and research trends across these three domains, the study proposes future technical directions focusing on bionic configurations, composite materials, multi-source fusion positioning, and hybrid intelligent algorithms. …”
Get full text
Article -
126
An enhanced pivot-based neural machine translation for low-resource languages
Published 2025-05-01“…The principal objective of this research is to enhance translation precision and uniformity among these low-resource languages, hence advancing machine translation models for underrepresented languages. …”
Get full text
Article -
127
A Study of Null Broadening Algorithms for Navigation Receivers in Highly Dynamic Scenarios
Published 2025-02-01“…Moreover, the signal can be successfully acquired even when the input jamming-to-signal ratio (ISR) is relatively low. When there is a deviation in the jamming direction, the proposed algorithm demonstrates robust null broadening performance even with a small number of snapshots. …”
Get full text
Article -
128
Biological Image Processing Algorithm Based on Attention Mechanism and Convolutional Neural Network
Published 2023-01-01“…The experimental results show that the proposed algorithm can effectively improve the image quality, improve the image clarity, avoid color distortion, and achieve good results in both synthetic and real low-illumination images, and the subjective and objective evaluation indicators are better than the contrast algorithm.…”
Get full text
Article -
129
Improvement on moving object tracking method for network video surveillance
Published 2014-10-01“…To improve the performance of the traditional MeanShift algorithm based on Kalman filter,acceleration to solve the problem that the moving target changes the direction abruptly is proposed.Another algorithm using simplified Camshift algorithm to keep track of the blob size has low time complexity which meets the real time requirement of network video surveillance.…”
Get full text
Article -
130
An ultraviolet image enhancement algorithm in Curvelet domain based on human visual characteristics
Published 2019-03-01“…Aiming at the characteristics such as low contrast,unclear imaging,over-dark or over-bright overall imaging and noise interference in ultraviolet image itself,a Curvelet domain ultraviolet image enhancement algorithm was proposed based on the masking characteristics of human vision.Firstly,the ultraviolet image information was decomposed to different scales and direction sub-bands by Curvelet transform.Secondly,the HVS model was established according to each sub-band,and with its masking characteristics,the nonlinear gain of the high frequency component was used to improve the image contrast.Meanwhile,the low frequency component of nonlinear grayscale stretching could improve the overall brightness of the image.Finally,the processed high and low frequency components were reconstructed by Curvelet backward to obtain enhanced ultraviolet images.The experimental results show that the enhanced image accords with the extraction of image information from human vision and highlights the contour information of edge and target.In addition,it has obvious effect in subjective vision and quantitative index.…”
Get full text
Article -
131
Novel adaptive generalized principal component analysis algorithm based on Hebbian rule
Published 2020-07-01“…In order to adaptively estimate the generalized principal component from input signals,a novel generalized principal component analysis algorithm was proposed based on the Hebbian linear neuron model.Since the autocorrelation matrices of the signals were estimated directly from the sampled data at the current time,the proposed algorithm had low computation complexity.Trough analyzing all of the equilibrium points by Lyapunov method,it is proven that if and only if the weight vector in the neuron had the same direction with the generalized principal component,the proposed algorithm attains the convergence status.Simulation results shows that compared with some same type algorithms,the proposed algorithm has faster convergence speed.…”
Get full text
Article -
132
Computationally Efficient DOA Tracking Algorithm in Monostatic MIMO Radar with Automatic Association
Published 2014-01-01“…A low-complexity DOA tracking algorithm in monostatic MIMO radar is proposed. …”
Get full text
Article -
133
Optimizing music course scheduling with real number encoding and chaos genetic algorithm
Published 2025-12-01“…Traditional scheduling systems usually use simple algorithms or manual intervention, resulting in low efficiency and uneven resource allocation. …”
Get full text
Article -
134
Research on APF-Dijkstra Path Planning Fusion Algorithm Based on Steering Model and Volume Constraints
Published 2025-07-01“…For the local oscillation phenomenon of the APF algorithm in the face of static U-shaped obstacles, the path cusp phenomenon caused by the vehicle corner and path curvature constraints is not taken into account, as well as the low path safety caused by ignoring the vehicle volume constraints. …”
Get full text
Article -
135
A nonrevisiting genetic algorithm based on multi-region guided search strategy
Published 2024-11-01“…However, the search efficiency of nonrevisiting genetic algorithms is currently low for some complex optimisation problems. …”
Get full text
Article -
136
Graph Knowledge-Enhanced Iterated Greedy Algorithm for Hybrid Flowshop Scheduling Problem
Published 2025-07-01“…This study presents a graph knowledge-enhanced iterated greedy algorithm that incorporates dual directional decoding strategies, disjunctive graphs, neighborhood structures, and a rapid evaluation method to demonstrate its superior performance for the hybrid flowshop scheduling problem (HFSP). …”
Get full text
Article -
137
Doppler Shift Based Low Earth Orbit Satellite Terminal Positioning Technology
Published 2025-06-01“…The integration of communication, navigation and remote sensing is the evolutinary direction for future low earth orbit (LEO) satellite Internet to achieve ubiquitous integrated space-based information service. …”
Get full text
Article -
138
Spectrum sensing algorithm based on stochastic resonance and non-central F-distribution
Published 2023-01-01“…To solve the problem that the detection probability of the spectrum sensing algorithm is low and the number of samples required for detection is large at low signal-to-noise ratio (SNR), a spectrum sensing algorithm based on stochastic resonance and non-central F-distribution (SRNF) was proposed.By introducing direct-current stochastic resonance noise, the system model of SRNF was established, and the expression of test statistic, false alarm probability and detection probability, and the expression of decision threshold obeying non-central F-distribution were deduced, and the optimal stochastic resonance noise parameter was solved by numerical method.The simulation results show that the detection performance of the proposed SRNF algorithm is better than that of energy detection (ED) algorithm and blind spectrum sensing based on F-distribution (BSF) algorithm at a low SNR.When the false alarm probability is 5%, the SNR is -12 dB, and the number of samples is 200, the detection probability of the proposed algorithm is 95%, which is 34% and 67% higher than BSF algorithm and ED algorithm, respectively.When the SNR is -12 dB, and the detection probability reaches 95%, the number of samples required by the proposed algorithm is 210, which saves 340 samples compared to the BSF algorithm.Furthermore, the proposed algorithm is less affected by noise uncertainty than ED algorithm.…”
Get full text
Article -
139
-
140
FB-YOLOv8s: A fire detection algorithm based on YOLOv8s
Published 2025-01-01“…However, there exist some problems in traditional detection algorithms of fire, such as low accuracy, high miss rate, and low detection rate of small targets. …”
Get full text
Article