Chinese Journal of Electronics最新文献

Path Planning for Unmanned Aerial Vehicle Swarm Based on Electromagnetic Environment Sensing 基于电磁环境感知的无人机群路径规划

IF 3 4区计算机科学

Chinese Journal of Electronics Pub Date : 2025-07-01 DOI: 10.23919/cje.2024.00.088

Tong Li;Zhuangzhuang Ma;Jinliang Shao;Yuan Zhao;Xilin Zhang;Yuhua Cheng

{"title":"Path Planning for Unmanned Aerial Vehicle Swarm Based on Electromagnetic Environment Sensing","authors":"Tong Li;Zhuangzhuang Ma;Jinliang Shao;Yuan Zhao;Xilin Zhang;Yuhua Cheng","doi":"10.23919/cje.2024.00.088","DOIUrl":"https://doi.org/10.23919/cje.2024.00.088","url":null,"abstract":"Unmanned aerial vehicle (UAV) swarm is widely used in tasks such as post-disaster rescue and battle-field monitoring. These tasks are often executed in unknown or complex environments, necessitating the programming of safe and efficient paths for UAV swarm to ensure the completion of missions. To address the path planning problem for UAV swarm in unknown electromagnetic environment, we propose a multi-agent deep deterministic policy gradient algorithm based on environment sensing where a safe learning mechanism is designed by using control barrier function. Additionally, a weakly supervised learning-based generative adversarial network algorithm is employed to construct an electromagnetic environment sensing module. By using the algrothim we propose, UAV swarm can avoid zones with strong electromagnetic interference and guarantee inter-UAV collisions avoidance during task execution. Compared to reinforcement learning algorithm without environment sensing module and safe learning mechanism, the algorithm we propose reduces convergence time by approximately 2.5 times. Simultaneously, it prevents individual trial-and-error learning process from violating safety constraints, ensuring the safety of UAV swarm in unknown environment. Finally, we verified the effectiveness of our algorithm on the experimental platform which is constructed by using universal software radio peripherals and quadcopter UAVs.","PeriodicalId":50701,"journal":{"name":"Chinese Journal of Electronics","volume":"34 4","pages":"1156-1171"},"PeriodicalIF":3.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11151183","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144990278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mode Composite Coplanar Waveguide Duplexing Power Divider with Large Frequency Ratio for 5G Multiband System Application 5G多波段系统大频率比模复合共面波导双工功率分配器

IF 3 4区计算机科学

Chinese Journal of Electronics Pub Date : 2025-07-01 DOI: 10.23919/cje.2024.00.085

Yihong Su;Mingtang Li;Xianqi Lin;Yong Fan

{"title":"Mode Composite Coplanar Waveguide Duplexing Power Divider with Large Frequency Ratio for 5G Multiband System Application","authors":"Yihong Su;Mingtang Li;Xianqi Lin;Yong Fan","doi":"10.23919/cje.2024.00.085","DOIUrl":"https://doi.org/10.23919/cje.2024.00.085","url":null,"abstract":"This paper proposes a duplexing power divider (DPD) with a large frequency ratio based on the mode composite coplanar waveguide (MCCPW). The DPD is a five-port network circuit. It integrates the function of the duplexer and power divider within a compact size. The overall DPD can be regarded as a combination of two filtering power dividers and a frequency splitter. The low-band channel circuit is a filtering power divider with harmonic suppression, the bandwidth ranges from 2 GHz to 6 GHz, covering some of the typical frequencies (2.4 GHz, 3.5 GHz, and 5.8 GHz) in sub-6 GHz. The high-frequency band filtering power divider works in substrate integrated waveguide (SIW)-TE<inf>10</inf> mode. The bandwidth ranges from 27 GHz to 29 GHz targeting 5G millimeter wave application. The two bands of the duplexer can be designed independently with very high freedom due to the mode separation used in the MCCPW. The DPD can be fabricated using a single PCB process and assembled by the fixing screws. The measured results of the DPD have good agreement with its simulation. The MCCPW-based DPD has the benefits of multi-function, large frequency ratio, high design freedom, high isolation, and high mid-band suppression at the same time with compact size. It is a promising candidate in the multiband system with large frequency ratios such as 5G.","PeriodicalId":50701,"journal":{"name":"Chinese Journal of Electronics","volume":"34 4","pages":"1064-1077"},"PeriodicalIF":3.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11151246","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144989945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Joint Activity and Data Detection for Asynchronous Grant-Free Access in NTN NTN中异步无授权访问的联合活动和数据检测

IF 3 4区计算机科学

Chinese Journal of Electronics Pub Date : 2025-07-01 DOI: 10.23919/cje.2024.00.317

Jiaqi Huang;Lixia Xiao;Shuo Li;Jiaxi Zhou;Tao Jiang

引用次数: 0

A Time-Frequency Representation Method Based on ETF-MDNet for Radar Target Micro-Motion Features 基于ETF-MDNet的雷达目标微运动特征时频表示方法

IF 3 4区计算机科学

Chinese Journal of Electronics Pub Date : 2025-07-01 DOI: 10.23919/cje.2024.00.233

Jinhao Wang;Xiaolong Chen;Jian Guan;Ningyuan Su;Wang Yuan

{"title":"A Time-Frequency Representation Method Based on ETF-MDNet for Radar Target Micro-Motion Features","authors":"Jinhao Wang;Xiaolong Chen;Jian Guan;Ningyuan Su;Wang Yuan","doi":"10.23919/cje.2024.00.233","DOIUrl":"https://doi.org/10.23919/cje.2024.00.233","url":null,"abstract":"This paper proposes a deep learning-based time-frequency representation approach that employs the enhanced time-frequency micro-Doppler network (ETF-MDNet) model to improve the characterization of micro-Doppler features for radar targets, particularly “low, slow, and small” ones. The ETF-MDNet model consists of four key components: the micro-Doppler target signal input module, the basis function selection module, the feature aggregation module, and the energy concentration module. A notable characteristic of this method is its utilization of the inherent adaptive learning capabilities of deep learning, which are combined with an attention mechanism to enhance the aggregation of time-frequency energy. This integration optimizes the method's capacity to represent micro-motion features across both channel and spatial dimensions. Consequently, this approach effectively captures the micro-motion information of the target while suppressing extraneous noise. In comparison to traditional short time Fourier transform, generalized warblet and reassigned spectrogram analysis methods, the proposed method achieves an average enhancement of 31.5% in time-frequency energy concentration, higher time-frequency energy aggregation, and the ability to reveal micro-motion feature details not captured by traditional methods.","PeriodicalId":50701,"journal":{"name":"Chinese Journal of Electronics","volume":"34 4","pages":"1199-1208"},"PeriodicalIF":3.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11151189","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144990276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","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 Comprehensive Survey on Text-to-Video Generation 文本到视频生成的综合研究

IF 3 4区计算机科学

Chinese Journal of Electronics Pub Date : 2025-07-01 DOI: 10.23919/cje.2024.00.151

Fan Xie;Dan Zeng;Qiaomu Shen;Bo Tang

{"title":"A Comprehensive Survey on Text-to-Video Generation","authors":"Fan Xie;Dan Zeng;Qiaomu Shen;Bo Tang","doi":"10.23919/cje.2024.00.151","DOIUrl":"https://doi.org/10.23919/cje.2024.00.151","url":null,"abstract":"Since the release of Sora, the text-to-video (T2V) generation has brought profound changes to artificial intelligence-generated content. T2V generation aims to generate high-quality videos based on a given text description, which is challenging due to the lack of large-scale, high-quality text-video pairs for training and the complexity of modeling high-dimensional video data. Although there have been some valuable and impressive surveys on T2V generation, these surveys introduce approaches in a relatively isolated way, lack the development of evaluation metrics, and lack the latest advances in T2V generation since 2023. Due to the rapid expansion of the field of T2V generation, a comprehensive review of the relevant studies is both necessary and challenging. This survey attempts to connect and systematize existing research in a comprehensive way. Unlike previous surveys, this survey reviews nearly one hundred representative T2V generation approaches and includes the latest method published on July 2024 from the perspectives of model, data, evaluation metrics, and available open source. It may help readers better understand the current research status and ideas and have a quick start with accessible open-source models. Finally, the future challenges and method trends of T2V generation are thoroughly discussed.","PeriodicalId":50701,"journal":{"name":"Chinese Journal of Electronics","volume":"34 4","pages":"1009-1036"},"PeriodicalIF":3.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11151234","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144990044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Low-Orbit Augmented Positioning Technology Based on Adaptive Iterative Extended Kalman Filter 基于自适应迭代扩展卡尔曼滤波的低轨道增强定位技术

IF 3 4区计算机科学

Chinese Journal of Electronics Pub Date : 2025-07-01 DOI: 10.23919/cje.2024.00.112

Jixi Liu;Shuaiyong Zheng;Xuanwen Wang;Shuailong Chen;Heng Yang;Yuhan Zhou;Xiaoqin Jin;Ailing Zhang

{"title":"Low-Orbit Augmented Positioning Technology Based on Adaptive Iterative Extended Kalman Filter","authors":"Jixi Liu;Shuaiyong Zheng;Xuanwen Wang;Shuailong Chen;Heng Yang;Yuhan Zhou;Xiaoqin Jin;Ailing Zhang","doi":"10.23919/cje.2024.00.112","DOIUrl":"https://doi.org/10.23919/cje.2024.00.112","url":null,"abstract":"The BeiDou-3 satellite navigation system (BDS-3) provides all-weather, all-time, high-precision positioning, navigation, and timing services for global users. However, compared with the Asia-Pacific region, the BDS-3 suffers from a relatively small number of visible satellites at high latitudes, which makes it difficult to provide high-performance services that meet application requirements. Moreover, traditional satellite positioning algorithms, such as iterative least squares (ILS) and extended Kalman filter (EKF), yield unsatisfactory positioning results when con-fronted with nonlinear models and abnormal noise. The rapid movement of low Earth orbit (LEO) satellites can enhance geometric diversity and effectively improve the geometry of BDS-3. The adaptive iterative extended Kalman filter (AIEKF) can adaptively adjust the noise covariance matrix and iteratively optimize the filtered estimates to converge more closely towards the true values. Therefore, we leverage the Iridium NEXT constellation to enhance the performance of BDS-3, and based on this, employ the AIEKF to estimate the system state parameters. The results indicated that with the integration of the LEO constellations, the number of visible satellites of BDS-3 at high latitudes improved by about 3 satellites and the position dilution of precision decreased by about 0.1821. The positioning accuracy was improved by 54.81% and 23.30% through the proposed algorithm, when compared with the ILS and EKF respectively. The algorithm provides a reference for comprehensive assessment of hybrid constellation positioning performance.","PeriodicalId":50701,"journal":{"name":"Chinese Journal of Electronics","volume":"34 4","pages":"1136-1145"},"PeriodicalIF":3.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11151172","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144990058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Constructing DNA Full Adder Circuit Based on the Simple and Efficient AND Logic Blocks 基于简单高效and逻辑块构建DNA全加法器电路

IF 3 4区计算机科学

Chinese Journal of Electronics Pub Date : 2025-07-01 DOI: 10.23919/cje.2024.00.234

Zhen Tang;Chunlin Chen;Shiyin Li;Jing Yang;Zhaohua Zhou;Zhixiang Yin

{"title":"Constructing DNA Full Adder Circuit Based on the Simple and Efficient AND Logic Blocks","authors":"Zhen Tang;Chunlin Chen;Shiyin Li;Jing Yang;Zhaohua Zhou;Zhixiang Yin","doi":"10.23919/cje.2024.00.234","DOIUrl":"https://doi.org/10.23919/cje.2024.00.234","url":null,"abstract":"Deoxyribonucleic acid (DNA) computing is considered as the promising new computing paradigm due to its excellent parallelism and programmability. DNA logic circuits are important computational units for performing digital algorithms in DNA computing systems. Although, DNA logic circuits have been rapidly developed in the past decades, it is still challenging to construct complex DNA logic circuits using simple DNA molecular structures. Here, we developed the simple and efficient AND logic blocks using DNA strand displacement reaction to construct a DNA full adder circuit. First, we performed the XOR logic operation using two AND logic blocks. Second, we used three parallel AND logic blocks to construct a half adder, showing that the used AND logic blocks can react in orthogonal parallel. Finally, we cascaded multiple AND logic blocks to realize a DNA full adder circuit, further showing that the used AND logic blocks can participate in cascading for the construction of complex logic circuits. We tested all input combinations using Visual DSD software. The results of the simulation experiments showed that all input combinations gave the correct results. The strategy of constructing complex DNA logic circuits using simple and efficient molecular structures provides the potential for scalable DNA logic systems.","PeriodicalId":50701,"journal":{"name":"Chinese Journal of Electronics","volume":"34 4","pages":"1044-1051"},"PeriodicalIF":3.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11151248","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144989947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

VQALS: A Video Question Answering Method in Low-Light Scenes Based on Illumination Correction and Feature Enhancement 基于光照校正和特征增强的低光场景视频问答方法

IF 3 4区计算机科学

Chinese Journal of Electronics Pub Date : 2025-07-01 DOI: 10.23919/cje.2023.00.403

Jie Yang;Miao Ma;Yutong Li;Zhao Pei

{"title":"VQALS: A Video Question Answering Method in Low-Light Scenes Based on Illumination Correction and Feature Enhancement","authors":"Jie Yang;Miao Ma;Yutong Li;Zhao Pei","doi":"10.23919/cje.2023.00.403","DOIUrl":"https://doi.org/10.23919/cje.2023.00.403","url":null,"abstract":"In low-light scenes, videos often exhibit low brightness, leading to less evident details in regional features. The current video question answering models have made significant progress in the fusion and reasoning of cross-modal information. However, they perform poorly in effectively extracting useful information and salient features in low-light scenes. To tackle this challenge, we propose a video question answering method in low-light scenes, in which two modules are developed: illumination correction module and feature enhancement module. The illumination correction module enhances visual quality by applying adaptive enhancement to the video with a variational threshold, thereby extracting more feature information. The feature enhancement module further enriches and strengthens important information in the features by introducing a dynamic learning strategy to enhance spatial features by two branches, providing reasonable evidence for inferring the correct answer. Finally, the enhanced visual features are fused with question features to infer and generate proper answers. We perform extensive experiments on public datasets. The experimental results manifest the advantages and effectiveness compared with state-of-the-art methods in terms of accuracy in video question answering task.","PeriodicalId":50701,"journal":{"name":"Chinese Journal of Electronics","volume":"34 4","pages":"1300-1308"},"PeriodicalIF":3.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11151179","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144990097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Event-Triggered Distributed Variational Particle Filter over Wireless Sensor Networks 无线传感器网络中的事件触发分布式变分粒子滤波

IF 3 4区计算机科学

Chinese Journal of Electronics Pub Date : 2025-07-01 DOI: 10.23919/cje.2024.00.265

Zijie Shang;Lin Gao;Huaguo Zhang;Wanchun Li

引用次数: 0

DPD Method for Fixed Single Observation Station Based on Short-Distance Dual Array 基于近距离双阵列的固定单观测站DPD方法

IF 3 4区计算机科学

Chinese Journal of Electronics Pub Date : 2025-07-01 DOI: 10.23919/cje.2024.00.244

Liangdong Chen;Zhitao Huang;Liting Sun;Mengyao Li

{"title":"DPD Method for Fixed Single Observation Station Based on Short-Distance Dual Array","authors":"Liangdong Chen;Zhitao Huang;Liting Sun;Mengyao Li","doi":"10.23919/cje.2024.00.244","DOIUrl":"https://doi.org/10.23919/cje.2024.00.244","url":null,"abstract":"Addressing the issues of existing passive location methods for fixed single observation station, such as excessively long baselines and poor noise resistance, this paper proposes a direct position determination (DPD) method based on short-distance dual array. Initially, a kind of dual-array antenna configuration is devised, and a passive location model based on the mixed signal of dual array is established. Subsequently, utilizing known waveform parameters, the redundant phase term which affects location accuracy is eliminated. On this basis, the DPD cost function is presented. Ultimately, the radiation source is located by using the two-dimensional multiple signal classification algorithm. In the analytical section, the fuzzy area, unlocatable area, locatable area, and the Cramer-Rao lower bound are derived theoretically. Following a quantitative analysis, the impact of baseline length, signal-to-noise ratio, and other parameters on location accuracy is elucidated. Then, geometric dilution of precision curves under various conditions are drawn. Compared with the existing methods, simulation results indicate that, if the element position error can be effectively controlled or compensated, the proposed method offers superior location performance under conditions of shorter baseline and lower signal-to-noise ratio.","PeriodicalId":50701,"journal":{"name":"Chinese Journal of Electronics","volume":"34 4","pages":"1216-1225"},"PeriodicalIF":3.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11151175","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144990197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0