Electronics Letters最新文献

A Linear Method for Extracting the Amplitude of a Sinusoidal Signal 一种提取正弦信号幅度的线性方法

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2025-07-26 DOI: 10.1049/ell2.70374

Wanan Yang, Chaoyang Zhang, Xuke Xia, Changyuan Wang, Chunhua Ren

引用次数: 0

Research on Extended Target Tracking Algorithm Based on RHM and RMM Fusion 基于RMM与RMM融合的扩展目标跟踪算法研究

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2025-07-25 DOI: 10.1049/ell2.70371

Guoqing Qi, Zixuan Xu, Yinya Li, Andong Sheng

引用次数: 0

A Study on Coordinated and Optimal Allocation of Wind Generation and Storage in a Microgrid Based on Power Balancing 基于功率均衡的微电网风电与储能协调优化配置研究

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2025-07-24 DOI: 10.1049/ell2.70362

Yiyi Huang, Qingguo Yuan, Ying Pang, Gang Li

引用次数: 0

Nullifying Jammer Effects in RIS-Assisted GNSS-Free Drone Localisation 在ris辅助GNSS-Free无人机定位中消除干扰效应

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2025-07-24 DOI: 10.1049/ell2.70368

Mehari Meles, Akash Rajasekaran, Reino Virrankoski, Riku Jäntti

{"title":"Nullifying Jammer Effects in RIS-Assisted GNSS-Free Drone Localisation","authors":"Mehari Meles, Akash Rajasekaran, Reino Virrankoski, Riku Jäntti","doi":"10.1049/ell2.70368","DOIUrl":"https://doi.org/10.1049/ell2.70368","url":null,"abstract":"A general challenge in drone localisation and navigation is the strong dependence on satellite positioning. Reconfigurable intelligent surfaces (RIS) offer a promising technology for global navigation satellite system (GNSS)-free drone localisation and for the alleviation of the jammer effect by nulling the jamming signal. In this letter, we investigate how to optimise the nullification of the jammer while maximising the desired signal in a double RIS-aided GNSS-free drone localisation setup. The main objectives of the presented procedure are the maximisation of the desired signal received by the drone, minimisation of the jamming signal effect, accurate estimation of the angle of departure (AOD) from RIS to drone, and drone positioning in 3D. To address this challenge, we propose an alternating projection algorithm to perform jamming nullification by optimising the phase shift at each RIS element. Simulations show that by proper RIS element phase optimisation, the effect of the jammer is efficiently reduced, the AODs from RIS surfaces to drone are computed more accurately, and the drone 3D localisation accuracy is improved.","PeriodicalId":11556,"journal":{"name":"Electronics Letters","volume":"61 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/ell2.70368","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144705410","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

FPGA Implementation of a Chopper Controller in PV Systems for IoT Applications 物联网应用光伏系统斩波控制器的FPGA实现

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2025-07-24 DOI: 10.1049/ell2.70364

Keyvan Barati, Abdolsamad Hamidi

{"title":"FPGA Implementation of a Chopper Controller in PV Systems for IoT Applications","authors":"Keyvan Barati, Abdolsamad Hamidi","doi":"10.1049/ell2.70364","DOIUrl":"https://doi.org/10.1049/ell2.70364","url":null,"abstract":"This work presents the design and simulation of an Field-Programmable Gate Array (FPGA) based digital controller for a micro-power photovoltaic (PV) energy harvesting system tailored to Internet of Things (IoT) applications. The proposed system features a DC-DC boost converter with an H-bridge topology, designed to interface effectively with low-power PV sources and deliver regulated output to IoT loads. A constant voltage maximum power point tracking (CV-MPPT) algorithm is implemented to maintain optimal energy extraction under variable irradiance. The controller dynamically adjusts the chopping frequency, duty cycle, and output voltage. Leveraging the parallelism and reconfigurability of FPGAs, a high-speed digital control architecture is developed and synthesised on a Cyclone IV FPGA platform. Compared to conventional microcontroller or DSP-based solutions, this approach offers significantly improved response time, power efficiency, and scalability. The final implementation achieves a chip area of 0.92 mm2, a control loop delay of 106 ms, and an overall efficiency of 92.36%, demonstrating its advantages over existing designs in terms of compactness, performance, and energy efficiency.","PeriodicalId":11556,"journal":{"name":"Electronics Letters","volume":"61 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/ell2.70364","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144687870","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

Identification of objects using their natural resonant complex frequencies under low signal-to-noise ratio conditions 在低信噪比条件下利用物体的自然共振复频率进行识别

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2025-07-24 DOI: 10.1049/ell2.70152

Yonggang Li, Haoyi Zhang, Yongjing Zhou, Weigang Zhu, Suqin Wu

引用次数: 0

Longitudinal and Feedforward Controller Design Based on Linear Matrix Inequalities for a Mini Aerial Vehicle 基于线性矩阵不等式的小型飞行器纵向前馈控制器设计

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2025-07-24 DOI: 10.1049/ell2.70365

Saeedreza Tofighi

{"title":"Longitudinal and Feedforward Controller Design Based on Linear Matrix Inequalities for a Mini Aerial Vehicle","authors":"Saeedreza Tofighi","doi":"10.1049/ell2.70365","DOIUrl":"https://doi.org/10.1049/ell2.70365","url":null,"abstract":"This paper presents the design of a multi-input multi-output (MIMO) optimal proportional–integral–derivative (PID) controller and a feedforward controller to enhance disturbance rejection and reference tracking in a mini aerial vehicle (MAV). The feedback controller is developed using linear matrix inequality (LMI) constraints within an iterative framework for tuning the PID parameters. In addition, a feedforward control strategy is proposed to further improve performance in reference tracking and disturbance rejection. The feedforward controller is designed under LMI constraints to minimise the H∞ norm of the transfer function matrix relating disturbances (or set-points) to the output (error). This optimisation problem is challenging due to its non-convex and nonlinear nature. Therefore, the main contribution of this paper is to propose a method based on utilising frequency sampling techniques, iterative algorithms and convex optimisation formulation to guarantee optimal solutions for reference tracking and disturbance rejection within specified constraints, which is crucial for preventing irreversible damage in control systems and also enhances the manoeuvrability of the MAV.","PeriodicalId":11556,"journal":{"name":"Electronics Letters","volume":"61 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/ell2.70365","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144687874","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

CFIPC-YOLO for Concealed Object Detection in Millimetre Wave Images 基于CFIPC-YOLO的毫米波图像隐藏目标检测

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2025-07-22 DOI: 10.1049/ell2.70367

Huakun Zhang, Lin Guo, Deyue An, Odbal

引用次数: 0

Three-Dimensional Electrical Capacitance Tomography Based on a Novel Planar Array Capacitance Sensor 基于新型平面阵列电容传感器的三维电容层析成像

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2025-07-20 DOI: 10.1049/ell2.70340

Zhiheng Guo, Jiaming Ren

引用次数: 0

Signal Adversarial Examples Generation for Signal Detection Network via White-Box Attack 基于白盒攻击的信号检测网络信号对抗示例生成

IF 0.7 4区工程技术

Electronics Letters Pub Date : 2025-07-15 DOI: 10.1049/ell2.70348

Dongyang Li, Linyuan Wang, Guangwei Xiong, Jinxian Peng, Dekui Ma, Bin Yan

{"title":"Signal Adversarial Examples Generation for Signal Detection Network via White-Box Attack","authors":"Dongyang Li, Linyuan Wang, Guangwei Xiong, Jinxian Peng, Dekui Ma, Bin Yan","doi":"10.1049/ell2.70348","DOIUrl":"https://doi.org/10.1049/ell2.70348","url":null,"abstract":"With the development and application of deep learning in signal detection tasks, the vulnerability of neural networks to adversarial attacks has also become a security threat to signal detection networks. This paper defines a signal adversarial examples generation model for signal detection network from the perspective of adding perturbations to the signal. The model uses the inequality relationship of L2-norm between time domain and time-frequency domain to constrain the energy of signal perturbations. Building upon this model, we propose a method for generating signal adversarial examples utilizing gradient-based attacks and inverse short-time Fourier transform. The experimental results show that under the constraint of signal perturbation energy ratio less than 3<math>\u0000 <semantics>\u0000 <mo>%</mo>\u0000 <annotation>$%$</annotation>\u0000 </semantics></math>, our adversarial attack resulted in a 34.5<math>\u0000 <semantics>\u0000 <mo>%</mo>\u0000 <annotation>$%$</annotation>\u0000 </semantics></math> reduction in the mean average precision (mAP), a 31.6<math>\u0000 <semantics>\u0000 <mo>%</mo>\u0000 <annotation>$%$</annotation>\u0000 </semantics></math> reduction in recall, and a 37.5<math>\u0000 <semantics>\u0000 <mo>%</mo>\u0000 <annotation>$%$</annotation>\u0000 </semantics></math> reduction in precision of the signal detection network. Compared to random noise perturbation of equivalent intensity, our adversarial attack demonstrates a significant attack effect.","PeriodicalId":11556,"journal":{"name":"Electronics Letters","volume":"61 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/ell2.70348","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144635043","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