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多策略改进的蜣螂搜索算法优化3DDV-Hop节点定位被引量：1: 《重庆邮电大学学报（自然科学版）》2024年第3期438-449,共12页彭铎陈江旭张倩吴海涛王婵飞; 国家自然科学基金项目(62265010,62061024);甘肃省高校创新基金项目(2020A-021)。; 为了提升传统3DDV-Hop算法的定位精度和稳定性,提出了MIDBO-3DDV-Hop算法。该算法利用多策略改进蜣螂搜索算法(multi strategy improvement dung beetle optimizer, MIDBO)来提高3DDV-Hop算法的定位精度。该算法通过通信半径分级方法细...; 关键词：蜣螂搜索算法 3DDV-Hop 变螺旋策略 Levy飞行策略平均跳距

基于多维度精确定位的测绘数据处理技术研究: 《电子设计工程》2023年第16期121-125,共5页刘锋; 陕西省教育厅一般专项科研计划项目(21JK0859)。; 针对传统测绘定位卫星信号易被地形遮挡的缺点,文中基于卫星信号建立了多传感器定位系统,对使用的3DDV-Hop算法从跳数、跳距及坐标计算三方面进行改进。采用双通信半径法对最小跳数进行修正,使跳数计算更加精确。并通过引入加权平均法...; 关键词：多维定位 3DDV-Hop 双通信半径法加权平均法最小最大法数据处理

基于可靠锚节点和粒子群优化的DV⁃Hop算法被引量：4: 《现代电子技术》2021年第13期13-16,共4页李同锋杜秀娟谢平杨帆; 青海省自然科学基金面上项目(2020⁃ZJ⁃926);青海师范大学中青年基金项目(1001/107010539)。; DV⁃Hop定位算法是无线传感器网络经典的定位算法之一,在深入分析DV⁃Hop算法误差来源的基础上,对该算法的后两个阶段进行改进:在第二阶段,选用可信度较高的锚节点和跳数修正因子计算平均跳距;在第三阶段,综合考虑满足定位条件的锚节点的...; 关键词：DV⁃Hop算法无线传感器网络锚节点跳数修正 PSO算法平均跳距未知节点定位算法

Performance analysis of dual-hop UAV relaying systems over mixed fluctuating two-ray and Nakagami-m fading channels: 《Science China(Information Sciences)》2021年第4期96-98,共3页Yongshun ZHANG Jiayi ZHANG Kostas PPEPPAS Bo AI; supported in part by Science and Technology Key Project of Guangdong Province China(Grant No.2019B010157001);Royal Society Newton Advanced Fellowship(Grant No.NA191006);National Natural Science Foundation of China(Grant Nos.61971027,U1834210,61961130391);Beijing Natural Science Foundation(Grant No.L202013);Open Research Fund of the State Key Laboratory of Integrated Services Networks(Grant No.ISN20-04);the ZTE Corporation,and State Key Laboratory of Mobile Network and Mobile Multimedia Technology。; Dear editor,Unmanned aerial vehicles(UAVs)perform a variety of civilian tasks,including disaster detection,weather forecasting and environmental monitoring.UAV-aided communications can provide flexible wireless connec...; 关键词：DISASTER VERSATILE fluctuating

Adaptive Expanding Ring Search Based Per Hop Behavior Rendition of Routing in MANETs: 《Computers, Materials & Continua》2021年第4期1137-1152,共16页Durr-e-Nayab Mohammad Haseeb Zafar Mohammed Basheri; Routing protocols in Mobile Ad Hoc Networks(MANETs)operate with Expanding Ring Search(ERS)mechanism to avoid ooding in the network while tracing step.ERS mechanism searches the network with discerning Time to Live(TTL...; 关键词：Expanding ring search mobile ad hoc networks multi hop wireless networks on-demand ad hoc networks per hop behavior quality of servi

融合跳数修正与动态布谷鸟搜索的改进DV⁃Hop算法被引量：3: 《现代电子技术》2021年第5期21-26,共6页任克强温晓珍; 国家自然科学基金资助项目(61562038)。; 针对DV⁃Hop算法定位精度低的问题,提出一种跳数量化与布谷鸟搜索优化相结合的改进DV⁃Hop算法。改进算法首先利用修正因子对节点间的跳数进行修正,以减小由最小跳数不准确所引起的累积误差;然后将网络中节点的通信区域划分为3个互不相交...; 关键词：改进DV⁃Hop算法跳数修正跳距修正布谷鸟搜索无线传感器网络节点定位

基于HOPE-CTC的端到端语音识别被引量：3: 《计算机工程与设计》2021年第2期462-467,共6页徐冬冬蒋志翔; 装备发展部信息系统局“十三五”预研课题基金项目(31511040401);装备预研领域基金项目(61400040201)。; 为增强端到端语音识别模型的鲁棒性和特征提取的有效性,对瓶颈特征提取网络进行研究,提出采用基于联合优化正交投影和估计的端到端语音识别模型。通过连接时序分类损失函数训练瓶颈特征提取网络,摆脱对语言学和对齐信息的先验知识的依赖...; 关键词：联合优化正交投影和估计连接时序分类注意力机制端到端模型瓶颈特征

Three-Dimensional Distance-Error-Correction-Based Hop Localization Algorithm for IoT Devices: 《Computers, Materials & Continua》2021年第2期1529-1549,共21页Deepak Prashar Gyanendra Prasad Joshi Sudan Jha Eunmok Yang Kwang Chul Son; the Research Grant of Kwangwoon University in 2020.; The Internet of Things(IoT)is envisioned as a network of various wireless sensor nodes communicating with each other to offer state-of-the-art solutions to real-time problems.These networks of wireless sensors monitor...; 关键词：3D localization DV-hop algorithm IOT PSO wireless sensor networks

Anchor Selection for Topology Inference and Routing in Wireless Sensor Networks: 《Journal of Communications and Information Networks》2020年第3期318-323,共6页Taha Bouchoucha Zhi Ding; This work was supported by National Science Foundation under Grant NSF 2009001.; Anchor-based ad-hoc networks utilize hop measurements to generate a virtual coordinate system for topology inference and routing applications.A common problem with such coordinate system is its sensitivity to anchor p...; 关键词：anchor selection CONNECTIVITY hop distance ROUTING

Dual-Hop Deep Space-Terrestrial FSO/RF Communication under Solar Scintillation: Performance Analysis and Challenges: 《China Communications》2020年第7期27-37,共11页Guanjun Xu Zhengqi Zheng Weizhi Wang; supported in part by the National Natural Science Foundation of China(No.61801181,61831008,61771197);The Open Research Fund of Key Laboratory for Information Science of Electromagnetic Waves(MoE)(No.EMW201902);The Verification Platform of Multi-tier Coverage Communication Network for Oceans(No.LZC0020)。; Deep space communication has been a fundamental guarantee for space exploration but encounters solar scintillation during superior solar conjunction.In this paper,a paradigm for deep space-terrestrial free space optic...; 关键词：FSO DEEP TERRESTRIAL

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