IEEJ Transactions on Electrical and Electronic Engineering最新文献_第4页

Estimation Method for Thévenin Equivalent Impedance Using Steady-State Fluctuation Data of Renewable Energy Output and Frequency 基于可再生能源输出和频率稳态波动数据的等效阻抗估计方法

IF 1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-05-27 DOI: 10.1002/tee.70072

Jun Tamura, Keita Tokumitsu, Hiroyuki Amano

引用次数: 0

Cepstral-Basis-Decomposed Nonnegative Matrix Factorization for Speech Signal Modeling 基于倒谱基分解的非负矩阵分解语音信号建模

IF 1.1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-05-26 DOI: 10.1002/tee.70028

Fuga Oshima, Masashi Nakayama

{"title":"Cepstral-Basis-Decomposed Nonnegative Matrix Factorization for Speech Signal Modeling","authors":"Fuga Oshima, Masashi Nakayama","doi":"10.1002/tee.70028","DOIUrl":"https://doi.org/10.1002/tee.70028","url":null,"abstract":"This study presents an enhanced nonnegative matrix factorization (NMF) algorithm designed for speech signal modeling. NMF has demonstrated efficacy across various applications to musical instrument signals, including audio source separation and music transcription. Nevertheless, its application to speech signals often results in diminished performance due to inadequate modeling arising from the spectral continuity of the speech signal. Hence, we introduced a pioneering approach termed cepstral-basis-decomposed NMF (CBD-NMF), which incorporates cepstrum analysis to enhance the modeling of speech signals. In the practical experiment, CBD-NMF is not necessarily convergence-guaranteed due to the flooring process; however, the experiment has revealed parameters that allow for stable optimization, ensuring that the cost function does not increase. By experimentally modeling Japanese vowel speech signals, we demonstrate that CBD-NMF induces better representation, in which one basis arises for one mora in Japanese. Additionally, when modeling a word in Japanese speech signals, CBD-NMF tends to induce a sparse representation equivalent to a sparse NMF with an extremely large weight coefficient. Our proposed framework can be applied to practical applications such as audio source separation and is expected to contribute to performance improvements when targeting speech signals. © 2025 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.","PeriodicalId":13435,"journal":{"name":"IEEJ Transactions on Electrical and Electronic Engineering","volume":"20 9","pages":"1452-1459"},"PeriodicalIF":1.1,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144768114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

QRS Detection in Noisy Electrocardiogram Based on Multi-Parameter Constrained Stochastic Resonance 基于多参数约束随机共振的噪声心电图QRS检测

IF 1.1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-05-21 DOI: 10.1002/tee.70062

Wenyu Shang, Masaki Sekino

{"title":"QRS Detection in Noisy Electrocardiogram Based on Multi-Parameter Constrained Stochastic Resonance","authors":"Wenyu Shang, Masaki Sekino","doi":"10.1002/tee.70062","DOIUrl":"https://doi.org/10.1002/tee.70062","url":null,"abstract":"One major challenge of QRS wave detection is the deleterious impact of inevitable noise in electrocardiogram (ECG) signals, which can deteriorate the detection performance of algorithms. Previous research has shown a nonlinear monostable potential-based algorithm for enhancing the QRS complex in a noisy environment. Its main mechanism is the stochastic resonance effect, which transfers noise energy to information-carrying ECG signals in the nonlinear potential. However, the QRS detection algorithm based on monostable stochastic resonance (MSR) exhibits a limited noise margin to maintain extremely good performance. To further improve noise robustness, we propose a multi-parameter constrained bistable SR (MCBSR) module for the QRS detection algorithm without requiring a large amount of training data. The MCBSR module can maximize the ECG signal while suppressing noise when there is a QRS complex and minimizes the ECG signal otherwise. Using four publicly available databases for testing, the MCBSR-based QRS detection algorithm has been proven to achieve superior performance among state-of-the-art algorithms. Compared to the conventional nonlinear method, the MCBSR enables the QRS detection algorithm to have significantly stronger noise robustness under various noise types. Therefore, this study successfully provides a more excellent nonlinear potential and greatly enhances the noise robustness of the QRS detection algorithm in large noise environments. © 2025 The Author(s). IEEJ Transactions on Electrical and Electronic Engineering published by Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.","PeriodicalId":13435,"journal":{"name":"IEEJ Transactions on Electrical and Electronic Engineering","volume":"20 11","pages":"1745-1756"},"PeriodicalIF":1.1,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/tee.70062","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196913","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

Sliding-Mode Predictive Speed Control for SPMSM Drives Based on Ultra-Local Model 基于超局部模型的SPMSM滑模预测速度控制

IF 1.1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-05-20 DOI: 10.1002/tee.70065

Jiandong Huang, Hongmei Li, Liguo Yang, Peng Zhang, Haonan Zhao

{"title":"Sliding-Mode Predictive Speed Control for SPMSM Drives Based on Ultra-Local Model","authors":"Jiandong Huang, Hongmei Li, Liguo Yang, Peng Zhang, Haonan Zhao","doi":"10.1002/tee.70065","DOIUrl":"https://doi.org/10.1002/tee.70065","url":null,"abstract":"To improve the speed tracking precision and overall steady-state performance of the permanent magnet synchronous motor (PMSM) drives, a sliding-mode predictive speed control method is proposed. Firstly, an ultra-local model (ULM) is built to ensure the anti-disturbance ability. Then, a novel discrete sliding-mode surface (SMS) is designed to achieve finite-time convergence of the motor speed. Simultaneously, a quadratic cost function is developed based on the predicted values of SMS. And then, the implemented model predictive control (MPC) algorithm not only efficiently generates the optimal q-axis reference current by the ULM, but also autonomously optimizes the motion trajectory of the motor speed. Specifically, the overall motor performance ultimately depends on the designed SMS, which also emphasizes the crucial role of MPC. Additionally, by evaluating the key controller gain that affects the balance between speed dynamics and system steady-state performance using mathematical and transfer function methods, an adaptive gain based on the Gaussian function is designed to effectively address this issue. Finally, the experiments are performed, and the results validate the superior performance of the proposed method. © 2025 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.","PeriodicalId":13435,"journal":{"name":"IEEJ Transactions on Electrical and Electronic Engineering","volume":"20 11","pages":"1782-1791"},"PeriodicalIF":1.1,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Refining High-Resolution Brillouin Optical Correlation-Domain Reflectometry Using Polymer Fibers by Modeling Refractive Index Differences in Optical Paths 利用聚合物光纤改进高分辨率布里渊光相关域反射法，模拟光路折射率差异

IF 1.1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-05-20 DOI: 10.1002/tee.70066

Shimbu Shirai, Seiga Ochi, Keita Kikuchi, Shuto Tsurugai, Daisuke Yamane, Heeyoung Lee, Yosuke Mizuno

引用次数: 0

Analysis of Communication Performance for Head-Mounted Wearable Device 头戴式可穿戴设备通信性能分析

IF 1.1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-05-20 DOI: 10.1002/tee.70063

Zhu Xiong, Wei Liao

{"title":"Analysis of Communication Performance for Head-Mounted Wearable Device","authors":"Zhu Xiong, Wei Liao","doi":"10.1002/tee.70063","DOIUrl":"https://doi.org/10.1002/tee.70063","url":null,"abstract":"To study the channel characteristics and communication performance in the low-frequency UWB band for head-mounted devices, this paper uses the finite difference time domain method, combined with the electromagnetic properties of human tissues, to establish a human head model. It proposes a head transmission system under the low-frequency UWB band, exploring the multipath propagation phenomena during communication. The effects of multipath caused by the human body on communication characteristics are analyzed through power delay distribution, first path power gain, and inter-path delay. The model is validated using the root mean square delay spread; additionally, the feasibility of the head-mounted wearable model is evaluated from the perspective of human safety. The results show that the multipath power delay of the left ear to right ear communication link decays exponentially over time, the power gain changes follow a normal distribution, and the inter-path delays follow a logistic distribution, with an average inter-path delay of 2.75 ns and a standard deviation of 1.25 ns. The cumulative distribution function of the multipath delay spread conforms to an inverse Gaussian distribution, and the peak specific absorption rate of 0.00087 W/kg is significantly lower than the 2 W/kg limit set by the ICNIRP guidelines. © 2025 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.","PeriodicalId":13435,"journal":{"name":"IEEJ Transactions on Electrical and Electronic Engineering","volume":"20 11","pages":"1766-1772"},"PeriodicalIF":1.1,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Privacy-Preserving Ranking-Based Model Integration for Federated Learning 基于隐私保护排序的联邦学习模型集成

IF 1.1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-05-19 DOI: 10.1002/tee.70064

Yuma Takeda, Kimihiro Mizutani

引用次数: 0

Minimum Initial Marking Estimation in Labeled Petri Nets for Required Resource Minimization of Automated Manufacturing Systems 自动化制造系统所需资源最小化的标记Petri网最小初始标记估计

IF 1.1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-05-19 DOI: 10.1002/tee.70044

Hao Yue, Junjie Chen, Can Wang, Xin Yang, Hesuan Hu, Shanchen Pang

{"title":"Minimum Initial Marking Estimation in Labeled Petri Nets for Required Resource Minimization of Automated Manufacturing Systems","authors":"Hao Yue, Junjie Chen, Can Wang, Xin Yang, Hesuan Hu, Shanchen Pang","doi":"10.1002/tee.70044","DOIUrl":"https://doi.org/10.1002/tee.70044","url":null,"abstract":"With an increase in the scale and complexity of practical industrial applications, the performance of automated manufacturing systems is usually more likely to be affected by resource limitation. In order to make good use of resources for automated manufacturing systems by using the formalism of Petri nets, one of the mainly studied problems is how to estimate the minimum initial markings (MIMs) in a known labeled Petri net model based on the observation of its label sequence. Unfortunately, this problem's computational complexity is NP-hard in theory. Previous research either suffers from excessively high computation costs or attempts to alleviate the computational burden at the expense of obtaining only a subset of MIMs. In this paper, an approach using an improved genetic algorithm with the token number prediction is proposed to compute the MIM estimation. Illustrative examples and comparative studies are provided to show the effectiveness and advantages of our proposed approach. © 2025 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.","PeriodicalId":13435,"journal":{"name":"IEEJ Transactions on Electrical and Electronic Engineering","volume":"20 10","pages":"1637-1648"},"PeriodicalIF":1.1,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144927197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Noniterative Decoupled Solution for Interconnected Power System Dispatch with Analytical Cost Reformulation and Nonlinear Constraints Equivalent 具有分析性成本重构和非线性约束等价的互联电力系统调度非迭代解耦解

IF 1.1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-05-10 DOI: 10.1002/tee.70033

Hui Hwang Goh, Yuelin Liu, Wei Dai, Hui Liu, Dewen Li, Hongzhou Li, Xiansong Yuan

{"title":"A Noniterative Decoupled Solution for Interconnected Power System Dispatch with Analytical Cost Reformulation and Nonlinear Constraints Equivalent","authors":"Hui Hwang Goh, Yuelin Liu, Wei Dai, Hui Liu, Dewen Li, Hongzhou Li, Xiansong Yuan","doi":"10.1002/tee.70033","DOIUrl":"https://doi.org/10.1002/tee.70033","url":null,"abstract":"Efficient and coordinated dispatch is crucial for the safe operation of interconnected power grids. Existing dispatching methods commonly face issues of heavy communication burdens and vulnerability to data leakage. In this regard, a noniterative decoupled dispatching method for interconnected power grids is proposed, aiming to achieve secure and efficient scheduling of interconnected power grids while ensuring data privacy. Utilizing the multi-point approximation method, an accurate equivalence of the nonlinear operational constraints of the external network is achieved. The analytical cost function related to tie-line transmission power is reformulated based on the polynomial chaos expansion (PCE), replacing the operational cost of the external network. Moreover, a bi-level adaptive update strategy for PCE is proposed to enhance the accuracy of the cost function. Based on the equivalent operational constraints and reformulated cost information, a noniterative decoupled dispatch model for interconnected power grids is constructed to protect data privacy and ensure the security and optimality of operation. The results of the IEEE 30-bus and IEEE 118-bus systems demonstrate the effectiveness of the proposed method. © 2025 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.","PeriodicalId":13435,"journal":{"name":"IEEJ Transactions on Electrical and Electronic Engineering","volume":"20 10","pages":"1589-1599"},"PeriodicalIF":1.1,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144927131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Method to Detect Only Registered Pedestrian Using Out-of-Distribution Detection and CNN Classifier with Footsteps 基于非分布检测和CNN分类器的步态检测方法

IF 1.1 4区工程技术

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2025-05-09 DOI: 10.1002/tee.70036

Hidefumi Kamozawa, Takayoshi Yamahira, Motoshi Tanaka

引用次数: 0