检索结果-内蒙古大学图书馆

IEEE Conference on Vehicular Technology (VTC)

作者： Thomas Billington Ansh Gwash Aadi Kothari Lucas Izquierdo Timothy Talty Department of Computer Science Virginia Polytechnic Institute and State University Blacksburg VA USA Department of Electrical and Computer Engineering Virginia Polytechnic Institute and State University Blacksburg VA USA

ISBN: (数字)9798331517786

ISBN: (纸本)9798331517793

In the rapidly advancing landscape of connected and automated vehicles (CAV), the integration of Vehicle-to-Everything (V2X) communication in traditional fusion systems presents a promising avenue for enhancing vehicle perception. Addressing current limitations with vehicle sensing, this paper proposes a novel Vehicle-to-Vehicle (V2V) enabled track management system that leverages the synergy between V2V signals and detections from radar and camera sensors. The core innovation lies in the creation of independent priority track lists, consisting of fused detections validated through V2V communication. This approach enables more flexible and resilient thresholds for track management, particularly in scenarios with numerous occlusions where the tracked objects move outside the field of view of the perception sensors. The proposed system considers the implications of falsification of V2X signals which is combated through an initial vehicle identification process using detection from perception sensors. Presented are the fusion algorithm, simulated environments, and validation mechanisms. Experimental results demonstrate the improved accuracy and robustness of the proposed system in common driving scenarios, highlighting its potential to advance the reliability and efficiency of autonomous vehicles.

关键词： Measurement Target tracking Error analysis Vehicular ad hoc networks Radar Sensor fusion Radar tracking Sensor systems Sensors Vehicle-to-everything

来源：评论

学校读者我要写书评

暂无评论

UAV-Enabled Wireless Networks for Integrated Sensing and Learning-Oriented Communication

arXiv

引用

arXiv 2024年

作者： Zhuang, Wenhao He, Xinyu Mao, Yuyi Liu, Juan The Department of Electrical and Electronic Engineering Hong Kong Polytechnic University Hong Kong The School of Electrical Engineering and Computer Science Ningbo University Ningbo China

Future wireless networks are envisioned to support both sensing and artificial intelligence (AI) services. However, conventional integrated sensing and communication (ISAC) networks may not be suitable due to the ignorance of diverse task-specific data utilities in different AI applications. In this letter, a full-duplex unmanned aerial vehicle (UAV)-enabled wireless network providing sensing and edge learning services is investigated. To maximize the learning performance while ensuring sensing quality, a convergence-guaranteed iterative algorithm is developed to jointly determine the uplink time allocation, as well as UAV trajectory and transmit power. Simulation results show that the proposed algorithm significantly outperforms the baselines and demonstrate the critical tradeoff between sensing and learning performance. Copyright © 2024, The Authors. All rights reserved.

关键词： Adversarial machine learning

来源：评论

学校读者我要写书评

暂无评论

Counterfeit Chip Detection using Scattering Parameter Analysis

Counterfeit Chip Detection using Scattering Parameter Analys...

引用

IEEE Design and Diagnostics of Electronic Circuits and Systems (DDECS)

作者： Maryam Saadat Safa Tahoura Mosavirik Shahin Tajik Department of Electrical and Computer Engineering Worcester Polytechnic Institute Worcester MA USA

The increase in the number of counterfeit and recycled microelectronic chips in recent years has created significant security and safety concerns in various applications. Hence, detecting such counterfeit chips in electronic systems is critical before deployment in the field. Unfortunately, the conventional verification tools using physical inspection and side-channel methods are costly, unscalable, error-prone, and often incompatible with legacy systems. This paper introduces a generic non-invasive and low-cost counterfeit chip detection based on characterizing the impedance of the system’s power delivery network (PDN). Our method relies on the fact that the impedance of the counterfeit and recycled chips differs from the genuine ones. To sense such impedance variations confidently, we deploy scattering parameters, frequently used for impedance characterization of RF/microwave circuits. Our proposed approach can directly be applied to soldered chips on the system’s PCB and does not require any modifications on the legacy systems. To validate our claims, we perform extensive measurements on genuine and aged samples from two families of STMicroelectronics chips to assess the effectiveness of the proposed approach.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Study of a Modular Consequent-Pole Flux Reversal Motor with the Synergy of Biased-Flux Effect

Study of a Modular Consequent-Pole Flux Reversal Motor with ...

引用

electrical Machines and Drives (ICEMD), International Conference on

作者： Mohammad Reza Sarshar Mohammad Afrank Mohammad Amin Jalali Kondelaji Mojtaba Mirsalim Javad Shokrollahi Moghani Department of Electrical Engineering Amirkabir University of Technology (Tehran Polytechnic) Tehran Iran Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology (MIT) Cambridge USA

ISBN: (数字)9798331507510

ISBN: (纸本)9798331507527

This paper studies a novel flux reversal permanent magnet (FRPM) motor in which PMs are positioned in consequent-pole and intermodular pattern. The proposed structure applies the synergies of flux reversal and biased flux effects to improve the torque density. The motor is optimized with multi-objective genetic algorithm (GA) to achieve a high torque with low torque ripple. Also, the FRPM is compared with the conventional intermodular PM motor (IMPM) to outline its superiorities. By means of finite element analysis (FEA), the motors are compared under the no-load and full-load conditions, and the results in terms of back-EMF and its harmonic distribution, air-gap flux density distributions, and full-load torque and ripple are analyzed. The FEA results shows that the proposed structure enhances the output torque by 40% compared to the IMPM while reducing the PM volume.

关键词： Torque Motors Harmonic analysis Permanent magnets Topology Finite element analysis Scattering parameters Torque measurement Optimization Genetic algorithms

来源：评论

学校读者我要写书评

暂无评论

Analysis of a Toothed Consequent-Pole Flux Reversal Motor with Assisting Permanent Magnets

Analysis of a Toothed Consequent-Pole Flux Reversal Motor wi...

引用

electrical Machines and Drives (ICEMD), International Conference on

作者： Mohammad Reza Sarshar Jamshid Kavianpour Mohammad Amin Jalali Kondelaji Mojtaba Mirsalim Amir Khorsandi Department of Electrical Engineering Amirkabir University of Technology (Tehran Polytechnic) Tehran Iran Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology (MIT) Cambridge USA

ISBN: (数字)9798331507510

ISBN: (纸本)9798331507527

This article studies three new toothed consequent-pole flux-reversal permanent magnet (FRPM) motors, each with specific combined PM arrays. The PM arrays comprise the biased-flux (BF) and flux-reversal (FR) effects. The FR effect is added mainly to boost the output torque production, and applying a magnetic-equivalent circuit (MEC) shows that the BF effect lowers the saturation risk in the stator core. Also, using finite element analysis (FEA), the main proposed motor generates the sinusoidal back-EMF waveform with an RMS value of 11.3V. Additionally, the full-load results show that the proposed motor produces 1.76N.m torque with 3.5% ripple. Furthermore, the flux density distribution of motors shows the importance of the BF effect in overload performances and verifies the analytical MEC results.

关键词： Stator cores Torque Windings Production Motors Permanent magnets Finite element analysis Torque measurement Optimization Saturation magnetization

来源：评论

学校读者我要写书评

暂无评论

A General Control-Theoretic Approach for Reinforcement Learning: Theory and Algorithms

arXiv

引用

arXiv 2024年

作者： Chen, Weiqin Squillante, Mark S. Wu, Chai Wah Paternain, Santiago Department of Electrical Computer and Systems Engineering Rensselaer Polytechnic Institute United States Mathematical Sciences Department IBM Research

We devise a control-theoretic reinforcement learning approach to support direct learning of the optimal policy. We establish various theoretical properties of our approach, such as convergence and optimality of our analog of the Bellman operator and Q-learning, a new control-policy-variable gradient theorem, and a specific gradient ascent algorithm based on this theorem within the context of a specific control-theoretic framework. We empirically evaluate the performance of our control-theoretic approach on several classical reinforcement learning tasks, demonstrating significant improvements in solution quality, sample complexity, and running time of our approach over state-of-the-art methods. Copyright © 2024, The Authors. All rights reserved.

关键词： Adversarial machine learning

来源：评论

学校读者我要写书评

暂无评论

Study of an Improved Flux Reversal Permanent Magnet Outer-Rotor Motor

Study of an Improved Flux Reversal Permanent Magnet Outer-Ro...

引用

Iranian Conference on electrical engineering (ICEE)

作者： Mohammad Reza Sarshar Mohammad Amin Jalali Kondelaji Mojtaba Mirsalim Department of Electrical Engineering Amirkabir University of Technology (Tehran Polytechnic) Tehran Iran Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology (MIT) Cambridge USA

ISBN: (数字)9798350376340

ISBN: (纸本)9798350376357

This paper analyzes two proposed flux reversal permanent magnet (FRPM) motors. The main motor, an improved FRPM (I-FRPM), was tested under no-load and full-load conditions. I-FRPM performs a higher torque density and low torque ripple structure. Using finite element methods (FEM), all curves are illustrated and compared to these two structures under fair conditions. This I-FRPM can be used in electric vehicle applications because it suggests a high torque density with minimal ripple motor structure.

关键词： electrical engineering Torque Motors Harmonic analysis Electric vehicles Permanent magnets Finite element analysis

来源：评论

学校读者我要写书评

暂无评论

FDM Printing: A Fabrication Method for Fluidic Soft Circuits?

FDM Printing: A Fabrication Method for Fluidic Soft Circuits...

引用

IEEE International Conference on Soft Robotics (RoboSoft)

作者： Savita V. Kendre Lehong Wang Ethan Wilke Nicholas Pacheco Loris Fichera Markus P. Nemitz Department of Robotics Engineering Worcester Polytechnic Institute Worcester MA USA Department of Computer Science Worcester Polytechnic Institute Worcester MA USA Department of Biomedical Engineering Worcester Polytechnic Institute Worcester MA USA Department of Mechanical and Materials Engineering Worcester Polytechnic Institute Worcester MA USA Department of Electrical and Computer Engineering Worcester Polytechnic Institute Worcester MA USA

Existing fluidic soft logic gates for controlling soft robots typically depend on labor-intensive manual fabrication or costly printing methods. In our research, we utilize Fused Deposition Modeling to create fully 3D-printed fluidic logic gates, fabricating a valve from thermoplastic polyurethane. We investigate the 3D printing of tubing and introduce a novel extrusion nozzle for tubing production. Our approach significantly reduces the production time for soft fluidic valves from 27 hours using replica molding to 3 hours with FDM printing. We apply our 3D-printed valve to develop optimized XOR gates and D-latch circuits, presenting a rapid and cost-effective fabrication method for fluidic logic gates that aims to make fluidic circuitry more accessible to the soft robotics community.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Tangentially-Magnetized-Slot-PM-Assisted Magnet Saturation Relieving Design for Doubly Salient Reluctance Machine Position Sensorless Drive Electric Propulsion Applications 6

Tangentially-Magnetized-Slot-PM-Assisted Magnet Saturation R...

引用

6th International Conference on electrical engineering and Control Technologies, CEECT 2024

作者： Wang, Weiyu Zhang, Xiaodong Niu, Shuangxia Zhao, Xing Pan, Jianfei Fu, Weinong Great Bay University School of Engineering Dongguan China The Hong Kong Polytechnic University Department of Electrical and Electronic Engineering Hong Kong Hong Kong University of York Department of Electronic Engineering York United Kingdom Shenzhen University College of Mechatronics and Control Engineering Shenzhen China Shenzhen University of Advanced Technology Faculty of Computer Science and Control Engineering Shenzhen China

ISBN: (纸本)9798331528096

For doubly salient reluctance machines, the magnetic saturation effect easily occurs, thereby the saturated inductance with complex analytical expression brings difficulties to the inductance modeling procedure during position sensorless control. To tackle this issue, a direct solution from electrical machine design is introduced to regulate magnetic flux distribution. The key is to insert tangentially-magnetized-slot-permanent-magnet into stator slots, thus relieving the magnetic saturation in the stator teeth. Consequently, unsaturated inductance characteristics can be acquired through the magnetic saturation relieving effect, thereby the inductance modeling effort can be significantly decreased, and such design is friendly for doubly salient reluctance machine position sensorless drive application. © 2024 IEEE.

关键词： Stators

来源：评论

学校读者我要写书评

暂无评论

Outlier Detection and Removal Signal Processing for Wearable Transcutaneous Oxygen Sensor

Outlier Detection and Removal Signal Processing for Wearable...

引用

IEEE MIT Undergraduate Research Technology Conference (URTC)

作者： Abigail Leonardi Ciara Murphy Sydney Hobson Vanshika Rohera Ulkuhan Guler Electrical and Computer Engineering Department Worcester Polytechnic Institute Worcester MA USA

ISBN: (数字)9798350309652

ISBN: (纸本)9798350309669

Respiratory diseases impact millions of people worldwide. In the smart and connected health era, there is a pressing need for reliable medical devices for remote monitoring of patients with respiratory disorders and patients with chronic diseases in general. For respiratory monitoring, there exist widely-used miniaturized photoplethysmography devices to measure peripheral blood oxygen saturation. More recently, transcutaneous oxygen monitors have been designed in a small form factor to be used as wearable devices to enable remote and continuous measurement of transcutaneous oxygen. In this study, we focus on processing the raw data collected from a noninvasive transcutaneous blood gas monitor that is in the development phase. Post-processing should be applied to remove the outliers in the measurements and smooth out the measurement noise. Various filters to remove outliers were tested in MATLAB, including the Hampel, rmoutliers, filloutliers, and moving average filters. The Hampel filter yielded the best results while maintaining the integrity of the data. The fillmissing function in MATLAB using the previous or linear interpolation methods is used to replace outlier data. The comparison of the raw data and the result of the data processing is presented.

关键词： Interpolation Filters Noise measurement Biomedical monitoring Wearable devices Blood Signal integrity

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：