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A Survey on Distributed Network Localization from a Graph Laplacian Perspective

Journal of systems Science & Complexity 2024年第1期37卷 273-293页

作者： HAN Zhimin LIN Zhiyun FU Minyue Artificial Intelligence Institute School of AutomationHangzhou Dianzi UniversityHangzhou 310018China Shenzhen Key Laboratory of Control Theory and Intelligent Systems School of System Design and Intelligent ManufacturingSouthern University of Science and TechnologyShenzhen 518055China Peng Cheng Laboratory Shenzhen 518000China

Network localization serves as a fundamental component for enabling various position based operations in multi-agent systems,facilitating tasks like target searching and formation control by providing accurate position information for all nodes in the *** localization focuses on the challenge of determining the positions of nodes within a network,relying on the known positions of anchor nodes and internode relative *** the past few decades,distributed network localization has garnered significant attention from *** paper aims to provide a review of main results and advancements in the field of distributed network localization,with a particular focus on the perspective of graph *** to its favorable characteristics,graph Laplacian unifies various network localization,even when dealing with diverse types of internode relative measurements,into a unified protocol framework,which can be constructed by a linear method and ensure the global convergence.

关键词： Distributed network localization graph Laplaian sensor network

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Synergistic enhancement of cathode/anode interfaces with high water-retentive organohydrogel enabling highly stable zinc ion batteries

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Journal of Energy Chemistry 2024年第11期98卷 670-679页

作者： Xixi Zhang Qingxiu Yu Guangmeng Qu Xiaoke Wang Chuanlin Li Chenggang Wang Na Li Jinzhao Huang Cuiping Han Hongfei Li Xijin Xu School of Physics and Technology University of JinanJinan 250022ShandongChina School of Chemistry and Chemical Engineering Shandong UniversityJinan 250100ShandongChina Faculty of Materials Science and Engineering and Low Dimensional Energy Materials Research Center Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055GuangdongChina School of System Design and Intelligent Manufacturing Southern University of Science and TechnologyShenzhen 518055GuangdongChina

Current aqueous battery electrolytes,including conve ntional hydrogel electrolytes,exhibit unsatisfactory water retention *** sustained water loss will lead to subsequent polarization and increased internal resistance,ultimately resulting in battery ***,a double network(DN) orga no hydrogel electrolyte based on dimethyl sulfoxide(DMSO)/H_(2)O binary solvent was *** directionally reconstructing hydrogen bonds and reducing active H_(2)O molecules,the water retention ability and cathode/anode interfaces were synergistic *** a result,the synthesized DN organohydrogel demonstrates exceptional water retention capabilities,retaining approximately 75% of its original weight even after the exposure to air for 20 *** Zn MnO_(2) battery delivers an outstanding specific capacity of275 mA h g^(-1) at 1 C,impressive rate performance with 85 mA h g^(-1) at 30 C,and excellent cyclic stability(95% retention after 6000 cycles at 5 C).Zn‖Zn symmetric battery can cycle more than 5000 h at 1 mA cm^(-2) and 1 mA h cm^(-2) without short *** study will encourage the further development of functional organohydrogel electrolytes for advanced energy storage devices.

关键词： Enhanced water-retentive Organohydrogel electrolyte Stable Zn||MnO+2 batteries Enhancement of cathode/anode interfaces

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Substrate bias effects in p-channel GaN-on-Si transistors

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Science China(Information Sciences) 2025年第1期68卷 404-405页

作者： Mengyao ZHAO Jie MA Lanlan YANG Chuanqi PAN Denggui WANG Jianjun ZHOU Sheng LI Jiaxing WEI Long ZHANG Siyang LIU Weifeng SUN National ASIC System Engineering Research Center School of Integrated Circuits Southeast University National Center of Technology Innovation for Electronic Design Automation Southeast University National Key Laboratory of Solid-State Microwave Devices and Circuits

The drain current （ID） of the n-channel GaN field-effecttransistor （n-FET） is influenced by the substrate-to-source bias voltage (VBS)（substrate bias effect）[1].Actually,nonzero VBSis also likely to occur in p-FET in real application,because the source electrode of p-FET is usually connected to high *** study reports the dependency between IDand VBSin p-FET for the first time,and analyzes the underlying mechanisms from the perspective of vertical electric field （EF） distribution.

关键词： bias effects p-channel substrate transistors

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Reliability and Safety Evaluation of COTS Based Cloud Railway Signalling systems 8

Reliability and Safety Evaluation of COTS Based Cloud Railwa...

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8th International Conference on system Reliability and Safety, ICSRS 2024

作者： Takamatsu, Junki Arai, Masayuki Toyama, Takashi Fukumoto, Satoshi Ohara, Mamoru Graduate School of System Design Tokyo Metropolitan University Tokyo Japan College of Industrial Technology Nihon University Chiba Japan

ISBN: (纸本)9798350354508

In recent years, especially in Europe, cloud-based railway signalling systems are becoming practical. These systems centrally control field equipment (such as signals and switches) from a central unit located remotely via a network, rather than being installed at the field equipment's location. To achieve a highly available and cost-effective cloud-based railway signalling system, a COTS (Commercial-Off- The-Shelf) based cloud railway signalling system have been proposed, which implements the central unit with cost-effective and high-performance COTS hardware. Railway signalling systems require high levels of safety and reliability. For safety, it is required that the occurrence of hazardous failures leading to train derailments or collisions be once every 10,000 to 100,000 years. Regarding reliability, it is required to maintain adequate availability of the system during the mission time (approximately 20 hours) and to avoid emergency stops as much as possible to ensure safety. This study discusses countermeasures against non-human-induced failures and human-induced failures, which are challenges for the aforementioned system. For non-human-induced failures, we focus on transmission interruptions lasting several seconds in the message transmission path between the central unit and the field terminals connected near each field equipment. For human-induced failures, we focus on the compromise of less than the majority of the multiplexed central units. We then propose countermeasures for these challenges. Next, we construct a Markov model to describe system behavior in various scenarios: normal conditions, transmission interruption, compromise, and simultaneous transmission interruption and compromise. Furthermore, based on these models, we analytically evaluate the reliability and safety of the proposed countermeasures. © 2024 IEEE.

关键词： Cloud computing

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Speech Method for Caregiving Robots Considering Uncertainty 16th

Speech Method for Caregiving Robots Considering Uncertainty

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16th International Conference on Social Robotics, ICSR + AI 2024

作者： Shindo, Arisa Kawasaki, Yosuke Takahashi, Masaki School of Science for Open and Environmental Systems Graduate School of Science and Technology Keio University Kanagawa Japan Department of System Design Engineering Faculty of Science and Technology Keio University Kanagawa Japan

ISBN: (纸本)9789819635214

Recent studies have explored the integration of large language models (LLMs) into caregiving robots. The use of LLMs facilitates the generation of human-like natural dialogues and diverse, varied expressions. However, in case of a lack of direct and specific instructions from a user, gaining an accurate understanding of the user's intent is challenging, which may result in miscommunication. Thus, this study proposed a method to achieve robust communication even in the absence of direct instructions by considering the uncertainty in destination prediction probabilities. The proposed system leveraged GPT-4 to generate various Japanese speech content candidates and employed neighborhood components analysis to facilitate dimensionality reduction. Consequently, notable features of the rich linguistic embeddings were preserved while transforming them into manageable data. The system selected appropriate utterances based on the destination prediction probabilities. Furthermore, this study investigated changes in the speech content according to the variations in these probabilities, and the incorporation of uncertainty in communication was validated. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.

关键词： Dimensionality reduction

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Visual Feedback Disturbance Rejection Control for an Amphibious Bionic Stingray Under Actuator Saturation

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IEEE/CAA Journal of Automatica Sinica 2023年第2期10卷 566-568页

作者： Haiyan Cheng Bin Fang Qing Liu Jinhua Zhang Jun Hong the Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System Xi’an Jiaotong UniversityXi’an 710049China the School of Automation and Information Engineering Xi’an University of TechnologyXi’an 710048China

Dear Editor,This letter is concerned with visual feedback disturbance rejection control for an amphibious bionic stingray subject to actuator saturation with internal and external disturbances. A visual feedback control method is designed for a dynamic nonlinear system on yaw angle of the amphibious bionic stingray via a finite-time extended-stateobserver,which is proved to achieve finite-time stability via a Lyapunov method. Finally, simulation results verify the effectiveness on the visual feedback control method.

关键词： Visual concerned saturation

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High-Precision Positioning with Continuous Delay and Doppler Shift using AFT-MC Waveforms

High-Precision Positioning with Continuous Delay and Doppler...

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2024 IEEE Global Communications Conference, GLOBECOM 2024

作者： Yi, Cong Yin, Haoran Lu, Xianjie Tang, Yanqun Liu, Fan Sun Yat-sen University School of Electronics and Communication Engineering China Southern University of Science and Technology School of System Design and Intelligent Manufacturing China

ISBN: (纸本)9798350351255

This paper explores a novel integrated localization and communication (ILAC) system using the affine Fourier transform multicarrier (AFT-MC) waveform. Specifically, we consider a multiple-input multiple-output (MIMO) AFT-MC system with ILAC and derive a continuous delay and Doppler shift channel matrix model. Based on the derived signal model, we develop a two-step algorithm with low complexity for estimating channel parameters. Furthermore, we derive the Cramér-Rao lower bound (CRLB) of location estimation as the fundamental limit of localization. Finally, we provide some insights about the AFT-MC parameters by explaining the impact of the parameters on localization performance. Simulation results demonstrate that the AFT-MC waveform is able to provide significant localization performance improvement compared to orthogonal frequency division multiplexing (OFDM) while achieving the CRLB of location estimation. © 2024 IEEE.

关键词： Orthogonal frequency division multiplexing

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Analysis of Serial Peripheral Interface 2

Analysis of Serial Peripheral Interface

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2nd IEEE International Conference on Measurement, Instrumentation, Control and Automation, ICMICA 2023

作者： Patra, Aritra Saini, Lalit Mohan National Institute of Technology School of Vlsi and Embedded System Design Haryana Kurukshetra India National Institute of Technology Department of Electrical Engineering Haryana Kurukshetra India

ISBN: (纸本)9798350355048

Serial peripheral interface, a term originally coined by Motorola in the 1980s, serves as a protocol facilitating the communication of serial synchronous data between a master device, often a microcontroller, and various peripherals. These peripherals encompass a broad range, including EEPROMs (Electrically Erasable Programmable Read-Only Memory), sensors, cards and more. Functioning as a full-duplex serial protocol, SPI (Serial peripheral interface) involves transmission and reception of synchronous serial data. This document elucidates the operational intricacies and distinctive features of the SPI Interface Protocol, focusing on a configuration with one master and one slave. In this setup, master device orchestrates communication, dictating the timing and flow of data, while slave device responds to master's commands. Understanding working principles and characteristics of SPI is paramount for its effective implementation in diverse applications. © 2024 IEEE.

关键词： Mice (computer peripherals)

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AMBA based AHB2APB bridge: An overview 2

AMBA based AHB2APB bridge: An overview

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2nd IEEE International Conference on Measurement, Instrumentation, Control and Automation, ICMICA 2023

作者： Sonal, Shashank Saini, Lalit Mohan National Institute of Technology School of Vlsi Design and Embedded System Haryana Kurukshetra India National Institute of Technology Department of Electrical Engineering Haryana Kurukshetra India

ISBN: (纸本)9798350355048

The AMBA is popularly used as an on-chip bus architecture, widely adopted as a standard for interconnections in SoC designs. Its primary aim is to enhance the reusability of Intellectual Property (IP) cores. It helps in accelerating sequential data transmission through a comprehensive collection of bus signals, posing challenges for the in-depth analysis of embedded systems based on AMBA. This study focuses on providing an overview of AHB to APB Bridge - a sophisticated interface bridge that connects the AHB with the APB. © 2024 IEEE.

关键词： Reusability

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High-Performance Multipliers and Adder designs in Digital Filters

High-Performance Multipliers and Adder Designs in Digital Fi...

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2024 International Conference on Computer and Applications, ICCA 2024

作者： Thota, Thanmai Fu, Minyue Australian Rail Track Corporation Newcastle Australia School of System Design and Intelligent Manufacturing Southern University of Science and Technology Shenzhen China

ISBN: (纸本)9798350367560

Very Large-Scale Integration (VLSI) industries demand efficient multiplier designs for Digital Signal Processors. Research on multipliers has taken different paths to improve the efficiency of a multiplier in various parameters. This paper presents new efficient 8*8 multiplier designs namely the Weinberger Multiplier (Weinberger Adder-based Multiplier) and Composite Multiplier (Weinberger and Full Adder-based Multiplier). This paper also presents their implementation in a 5th-order transpose form FIR filter. Using 32nm technology in Cadence Virtuoso, the power, area, and delay values of the multipliers are presented. Furthermore, CMOS and GDI techniques are adopted to design multipliers at the transistor level. These two techniques have their advantages and drawbacks. CMOS technique is proven to be the best technique to adopt when the average power of the circuit is of primary concern but has circuit area and delay issues. The GDI technique is the best choice to improve efficiency in terms of area and delay but has the drawback of full swing at the output. To address the drawbacks of CMOS and GDI techniques and improve multipliers' efficiency in terms of power, area, and delay, intermixing the two techniques is adopted as the best choice for multipliers and filter designs. CMOS+GDI based Weinberger multiplier is 32.4%, 18.94%, and 30% efficient in transistor count, maximum power, and delay, respectively, compared to CMOS. CMOS+GDI based Composite multiplier is 65.2%, 43.1 %, and 91.22% efficient in transistor count, maximum power, and delay, respectively, compared to CMOS. © 2024 IEEE.

关键词： CMOS integrated circuits

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