Electronics Letters最新文献_第7页

Block Error Rate Minimization of Downlink MIMO-NOMA With Finite Blocklength 有限块长下行MIMO-NOMA的块错误率最小化

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2025-06-03 DOI: 10.1049/ell2.70309

Yuan Yin, Tianying Zhong, Kang Zheng, Jiaheng Wang

引用次数: 0

A Combined Navigation Fault Detection Method Based on Wavelet-ResNet 基于小波- resnet的组合导航故障检测方法

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2025-06-03 DOI: 10.1049/ell2.70316

Yunhua Liu, Hao Wang, Yongqiang Liu, Qing Chang

{"title":"A Combined Navigation Fault Detection Method Based on Wavelet-ResNet","authors":"Yunhua Liu, Hao Wang, Yongqiang Liu, Qing Chang","doi":"10.1049/ell2.70316","DOIUrl":"https://doi.org/10.1049/ell2.70316","url":null,"abstract":"With the goal of realizing fault detection of airborne combined navigation system, this letter proposes a fault detection method combining wavelet transform and residual network. Firstly, the model equation of the system is established, and the combined navigation data set is constructed by combining the characteristics of the UAV flight trajectory. At the same time, the normal data of the UAV is added with common faults to obtain the fault data set. Then, the navigation data is preprocessed by discrete wavelet transform, and the residual network model is trained according to the preprocessed navigation data set to improve the training efficiency of the model. Finally, the trained model is tested and evaluated. The simulation results show that the accuracy of detecting mutation faults, slope faults and precision level reduction faults is more than <math>\u0000 <semantics>\u0000 <mrow>\u0000 <mn>95</mn>\u0000 <mo>%</mo>\u0000 </mrow>\u0000 <annotation>$95%$</annotation>\u0000 </semantics></math>.","PeriodicalId":11556,"journal":{"name":"Electronics Letters","volume":"61 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/ell2.70316","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144206471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Super-Resolution Neural Networks for High-Contrast Electromagnetic Scattering Problems 高对比度电磁散射问题的超分辨率神经网络

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2025-06-03 DOI: 10.1049/ell2.70310

Shuwen Yang, Siyi Huang, Xinyue Zhang, Xingqi Zhang

引用次数: 0

Adaptive Channel-Robust Signal Fusion Method for Collaborative Device Fingerprint Identification 协同设备指纹识别的自适应信道鲁棒信号融合方法

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2025-06-03 DOI: 10.1049/ell2.70319

Jiashuo He, Weiwei Jiang, Qinxue Tang, Yumeng Wang, Shuo Chang, Sai Huang, Caiyong Hao, Zhiyong Feng

{"title":"Adaptive Channel-Robust Signal Fusion Method for Collaborative Device Fingerprint Identification","authors":"Jiashuo He, Weiwei Jiang, Qinxue Tang, Yumeng Wang, Shuo Chang, Sai Huang, Caiyong Hao, Zhiyong Feng","doi":"10.1049/ell2.70319","DOIUrl":"https://doi.org/10.1049/ell2.70319","url":null,"abstract":"Radio frequency fingerprint identification (RFFI) has become a popular research topic due to its potential ability to address security issues. However, how to efficiently leverage the diversity gain of multi-source signals for enhancing the collaborative RFFI (Co-RFFI) performance is still a challenging and unsolved topic, especially under realistic conditions involving unknown channel variations and unbalanced signal-to-noise ratios (SNRs) across receivers. To this end, this letter proposes a high-performance Co-RFFI method, where an adaptive channel-robust signal fusion (ACRSF) method is designed. Specifically, we first generate the amplitude-limited denoised spectral quotient (ALDSQ) signal on each receiver in a channel-robust manner. Then, a novel signal-level fusion strategy utilizes SNR-based softmax weighting to adaptively combine these ALDSQ signals, thus prioritizing discriminative information from higher-quality sources. At last, a well-trained convolutional neural network (CNN) is employed to accomplish the final classification. Extensive simulation results demonstrate that the proposed Co-RFFI method, ACRSF-CNN, provides significant performance improvement compared to other existing fusion schemes under unknown channel-varying environments.","PeriodicalId":11556,"journal":{"name":"Electronics Letters","volume":"61 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/ell2.70319","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144206474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Precise and Low Power Analog Spiking Neural Network Exploiting Pre-Charged Current Mode Synapses and Coarse-Fine Neuron Comparators 利用预充电电流模式突触和粗精神经元比较器的精确和低功耗模拟尖峰神经网络

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2025-06-02 DOI: 10.1049/ell2.70318

Kyu-Dong Hwang, Kwang-Il Oh, Jae-Jin Lee, Min-Woo Kim, Byung-Do Yang

引用次数: 0

A Low Side Lobe Anti-UAV Radar Beamforming Method Based on Hybrid Basic Beams Superposition 基于混合基波束叠加的低旁瓣反无人机雷达波束形成方法

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2025-06-02 DOI: 10.1049/ell2.70304

Fei Tong, Yihui Zhang, Jingwei Xu, Lin Li, Guisheng Liao

{"title":"A Low Side Lobe Anti-UAV Radar Beamforming Method Based on Hybrid Basic Beams Superposition","authors":"Fei Tong, Yihui Zhang, Jingwei Xu, Lin Li, Guisheng Liao","doi":"10.1049/ell2.70304","DOIUrl":"https://doi.org/10.1049/ell2.70304","url":null,"abstract":"Radar beamforming is one of the most important technologies in the radar system, and the anti unmanned aerial vehicle (anti-UAV) radar beamforming is usually difficult because of its complex beams. In this paper, a beamforming method based on a hybrid basic beams superposition for anti-UAV radar and a modulation parameter decoupling method are proposed. Basic beams based on a window function and their improved versions with fast attenuation side lobes are combined by different weightings on different pointing directions to obtain the anti-UAV radar beam. A method to generate basic beams for improving the attenuation side lobes of the original basic beams is proposed by minimizing the total power without any power loss in one specific pointing direction. To obtain the optimal weightings for different directions, the average beamforming error is minimized and then solved by a genetic algorithm. The method for decoupling the modulation parameters is also derived mathematically. Three groups of experiments with different types of beams are carried out. The experimental results show that the proposed method with hybrid beams can obtain a better beamforming effect in terms of side lobe level based on the window function under different types of anti-UAV radar beams.","PeriodicalId":11556,"journal":{"name":"Electronics Letters","volume":"61 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/ell2.70304","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144197461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on Virtual Vibration Drilling Method Based on Sliding Mode Control 基于滑模控制的虚拟振动钻孔方法研究

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2025-05-29 DOI: 10.1049/ell2.70315

Hongzhi Hu, Xuzhao Song, Hongjie Su, Fang Guan

引用次数: 0

Dielectric Leakage Attacks on Liquid Crystal Phase Shifters in 60 GHz WiGig Systems 60 GHz WiGig系统中液晶移相器的介质泄漏攻击

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2025-05-29 DOI: 10.1049/ell2.70317

Jinfeng Li, Haorong Li

{"title":"Dielectric Leakage Attacks on Liquid Crystal Phase Shifters in 60 GHz WiGig Systems","authors":"Jinfeng Li, Haorong Li","doi":"10.1049/ell2.70317","DOIUrl":"https://doi.org/10.1049/ell2.70317","url":null,"abstract":"In this letter, the susceptibility and resilience of malicious dielectric-leakage attacks on a liquid crystal (LC)-based strip line phase shifter targeting 60 GHz WiGig beam-steering applications are measured for the first time. An extreme scenario of total dielectric leakage attack, that is the cavity becoming air-filled, is examined for two designs of the LC-filled strip line geometry. The vulnerability assessment indicates a measured return loss increase of 10.63 dB and a characteristic impedance drift of 40.55 Ω for the design geometry that is impedance-matched to 50 Ω at the saturated bias state of the LC. In contrast, for the design matched at the 0 V biasing state of the LC, the measured drifts are comparatively lower, with a return loss increase of 7.19 dB and the impedance variation of 28.77 Ω, featuring reduced susceptibility to dielectric leakage-induced perturbations. Impactfully, the undesirable amplitude drifts in the transmitted signal, induced by LC leakage attacks, can significantly impact the feeding of antenna elements in beam-steering systems. Such perturbations may lead to underestimated security vulnerabilities, including potential eavesdropping risks, particularly in mission-critical sensing and communication applications.","PeriodicalId":11556,"journal":{"name":"Electronics Letters","volume":"61 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/ell2.70317","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144171916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Energy-Efficient Sparse UAV-Assisted Networks: Co-Optimizing Hybrid Transmission Modes and Interference-Aware Power Allocation 高能效稀疏无人机辅助网络：协同优化混合传输模式和干扰感知功率分配

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2025-05-29 DOI: 10.1049/ell2.70296

Qin Zichao, Wang Hai, Qin Zhen

{"title":"Energy-Efficient Sparse UAV-Assisted Networks: Co-Optimizing Hybrid Transmission Modes and Interference-Aware Power Allocation","authors":"Qin Zichao, Wang Hai, Qin Zhen","doi":"10.1049/ell2.70296","DOIUrl":"https://doi.org/10.1049/ell2.70296","url":null,"abstract":"In the context of wide-area data collection using sensor nodes, unmanned aerial vehicles (UAVs) are frequently employed to assist ground nodes in achieving data backhaul. This paper proposes a joint optimization framework, with the aim of addressing the dynamic selection of transmission schemes, the mutual interference of line-of-sight links, and energy constraints in sparse networks comprising UAVs and ground nodes. Firstly, a hybrid transmission mode decision maker is designed using Lyapunov optimization, enabling multi-hop routing/ferry-transmission/carry-forwarding modes to be dynamically assigned according to node locations and data transmission requirements, thereby achieving an online trade-off between delay and energy consumption. Secondly, the joint interference-aware power-distance control algorithm is proposed to enhance the transmission link signal-to-noise ratio by 23.6%. Finally, the normalized energy efficiency index is constructed and a decoupled gradient optimization method is designed to achieve Pareto equilibrium between throughput and energy consumption. The simulation results demonstrate that the proposed method can effectively reduce the end-to-end delay and improve the system energy efficiency in sparse networks, providing an effective and feasible solution for energy-constrained UAV-assisted sparse networks.","PeriodicalId":11556,"journal":{"name":"Electronics Letters","volume":"61 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/ell2.70296","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144171764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Optimal Ultra-Thin Broadband Polarization-Independent Metamaterial Absorber for Visible and Infrared Spectrum Applications 一种用于可见光和红外光谱应用的最佳超薄宽带偏振无关超材料吸收体

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2025-05-29 DOI: 10.1049/ell2.70314

Md. Murad Kabir Nipun, Md. Jahedul Islam, Md. Moniruzzaman

{"title":"An Optimal Ultra-Thin Broadband Polarization-Independent Metamaterial Absorber for Visible and Infrared Spectrum Applications","authors":"Md. Murad Kabir Nipun, Md. Jahedul Islam, Md. Moniruzzaman","doi":"10.1049/ell2.70314","DOIUrl":"https://doi.org/10.1049/ell2.70314","url":null,"abstract":"This paper presents the design and study of an extremely thin, wideband, and polarization-insensitive metamaterial absorber (MMA) tailored for applications in the visible and infrared (IR) spectral ranges. The proposed MMA introduces a diamond-shaped resonator setup, achieves high absorption efficiency beyond 90% across a wide wavelength range from 331.64 to 2163.1 nm. The average bandwidth of absorption is 95.64%, having the highest absorption rate of 99.039% witnessed at 511.47 nm. The unit cell of the absorber is condensed and designed to cover the visible optical range, along with the near and short infrared optical windows. Aluminium nitride (AlN) is used as the substrate, while nickel (Ni) serves as both the ground and resonator layer material, contributing to the MMA's durability and thermal stability. As the absorber is symmetric in design, it ensures polarization independence, with steady absorption performance maintained at oblique angles of incidence up to 75°. Comprehensive parametric simulations were performed, examining elements such as surface current distribution, layer thicknesses, different substrate materials and variations in permittivity and permeability, all of which demonstrate the MMA's robustness and adaptability for various applications and by covering a wide spectral range and exhibiting flexibility to polarization and incident angle variations, this absorber offers an effective platform for environmental monitoring, IR detection, and solar energy harvesting.","PeriodicalId":11556,"journal":{"name":"Electronics Letters","volume":"61 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/ell2.70314","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144171915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0