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Efficient Remote Identification for Drone Swarms
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作者 Kang-Moon Seo Jane Kim +2 位作者 Soojin Lee Jun-WooKwon Seung-Hyun Seo 《Computers, Materials & Continua》 SCIE EI 2023年第9期2937-2958,共22页
With the advancement of unmanned aerial vehicle(UAV)technology,the market for drones and the cooperation of many drones are expanding.Drone swarms move together in multiple regions to perform their tasks.A Ground Cont... With the advancement of unmanned aerial vehicle(UAV)technology,the market for drones and the cooperation of many drones are expanding.Drone swarms move together in multiple regions to perform their tasks.A Ground Control Server(GCS)located in each region identifies drone swarmmembers to prevent unauthorized drones from trespassing.Studies on drone identification have been actively conducted,but existing studies did not consider multiple drone identification environments.Thus,developing a secure and effective identification mechanism for drone swarms is necessary.We suggested a novel approach for the remote identification of drone swarms.For an efficient identification process between the drone swarm and the GCS,each Reader drone in the region collects the identification information of the drone swarmand submits it to the GCS for verification.The proposed identification protocol reduces the verification time for a drone swarm by utilizing batch verification to verify numerous drones in a drone swarmsimultaneously.To prove the security and correctness of the proposed protocol,we conducted a formal security verification using ProVerif,an automatic cryptographic protocol verifier.We also implemented a non-flying drone swarmprototype usingmultiple Raspberry Pis to evaluate the proposed protocol’s computational overhead and effectiveness.We showed simulation results regarding various drone simulation scenarios. 展开更多
关键词 Drone remote identification drone swarms multi-drone authentication
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Weather Events Associated with Strong Earthquakes and Seismic Swarms in Italy
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作者 Valentino Straser Daniele Cataldi Gabriele Cataldi 《Advances in Geological and Geotechnical Engineering Research》 2023年第3期39-54,共16页
This study discusses the possible relationship between potentially destructive seismic events,earthquake swarms,and intense weather events occurring in the same epicentral zone at time intervals ranging from one day t... This study discusses the possible relationship between potentially destructive seismic events,earthquake swarms,and intense weather events occurring in the same epicentral zone at time intervals ranging from one day to a few weeks.The objective of the present study is,therefore,to analyze the interaction between the lithosphere,atmosphere,and ionosphere in order to propose,prospectively,a new hydro-climatic model to be applied not only in Italy,where this research was carried out.The study concerns some of the most intense Italian earthquakes starting from 1920,with the destructive event in Lunigiana,in North Western Apennines,until the recent earthquake swarm that hit the Emilia-Romagna region followed,as in the cases analyzed in this research,by strong atmospheric disturbances.The recurrence associating seismic events with atmospheric precipitation allows us to propose some hypotheses about the triggering mechanism.In tectonically stressed areas,during pre-seismic and seismic phases,the release of gases from the ground and electrical charges near active faults is known.It is hypothesized that water condensation nuclei are carried by radon gas on atmospheric gases,also originating from cosmic rays in the upper atmosphere,generated by air ionization. 展开更多
关键词 Extreme hydro-climatic events EARTHQUAKES Radon gas Earthquake swarms Atmospheric precipitation
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Optimal deployment of swarm positions in cooperative interception of multiple UAV swarms 被引量:1
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作者 Chengcai Wang Ao Wu +3 位作者 Yueqi Hou Xiaolong Liang Luo Xu Xiaomo Wang 《Digital Communications and Networks》 SCIE CSCD 2023年第2期567-579,共13页
In order to prevent the attacker from breaking through the blockade of the interception,deploying multiple Unmanned Aerial Vehicle(UAV)swarms on the interception line is a new combat style.To solve the optimal deploym... In order to prevent the attacker from breaking through the blockade of the interception,deploying multiple Unmanned Aerial Vehicle(UAV)swarms on the interception line is a new combat style.To solve the optimal deployment of swarm positions in the cooperative interception,an optimal deployment optimization model is presented by minimizing the penetration zones'area and the analytical expression of the optimal deployment positions is deduced.Firstly,from the view of the attackers breaking through the interception line,the situations of vertical penetration and oblique penetration are analyzed respectively,and the mathematical models of penetration zones are obtained under the condition of a single UAV swarm and multiple UAV swarms.Secondly,based on the optimization goal of minimizing the penetration area,the optimal deployment optimization model for swarm positions is proposed,and the analytical solution of the optimal deployment is solved by using the convex programming theory.Finally,the proposed optimal deployment is compared with the uniform deployment and random deployment to verify the validity of the theoretical analysis. 展开更多
关键词 UAV Swarm Cooperative interception Deployment optimization Convex programming
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SUNDER:Self-organized grouping and entrapping method for swarms in multitarget environments
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作者 Yutong Yuan Zhun Fan +5 位作者 Xiaomin Zhu Li Ma Ji Ouyang Weidong Bao Ji Wang Zhaojun Wang 《Defence Technology(防务技术)》 SCIE EI CAS CSCD 2023年第8期68-83,共16页
For swarm robots moving in a harsh or uncharted outdoor environment without GPS guidance and global communication,algorithms that rely on global-based information are infeasible.Typically,traditional gene regulatory n... For swarm robots moving in a harsh or uncharted outdoor environment without GPS guidance and global communication,algorithms that rely on global-based information are infeasible.Typically,traditional gene regulatory networks(GRNs)that achieve superior performance in forming trapping pattern towards targets require accurate global positional information to guide swarm robots.This article presents a gene regulatory network with Self-organized grouping and entrapping method for swarms(SUNDER-GRN)to achieve adequate trapping performance with a large-scale swarm in a confined multitarget environment with access to only local information.A hierarchical self-organized grouping method(HSG)is proposed to structure subswarms in a distributed way.In addition,a modified distributed controller,with a relative coordinate system that is established to relieve the need for global information,is leveraged to facilitate subswarms entrapment toward different targets,thus improving the global multi-target entrapping performance.The results demonstrate the superiority of SUNDERGRN in the performance of structuring subswarms and entrapping 10 targets with 200 robots in an environment confined by obstacles and with only local information accessible. 展开更多
关键词 Swarm robots Local information Gene regulatory network Swarm grouping Trapping pattern Confined multitarget environment
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The Characteristics of Earthquake Swarms in and around Jiangsu Province
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作者 Huang Yun Tian Jianming Miao Ali 《Earthquake Research in China》 2011年第4期426-443,共18页
This paper systematically analyzed 36 earthquake swarms in and around Jiangsu Province, summarized their characteristics and discussed the relationship between earthquske swarms and subsequent strong earthquakes. It a... This paper systematically analyzed 36 earthquake swarms in and around Jiangsu Province, summarized their characteristics and discussed the relationship between earthquske swarms and subsequent strong earthquakes. It also analyzed the judgment criteria for precursory earthquake swarms. Earthquake swarms in Jiangsu Province are concentrated in several areas. Most of them were of magnitude ML2.0~3.9. For most earthquake swarms, the number of earthquakes was less than 30. Time duration for about 55% of earthquake swarms was less than 15 days. The biggest magnitude of one earthquake swarm was not proportional to the number of earthquakes and time duration. There are 78% of earthquake swarms corresponded to the forthcoming earthquakes of M>4.6 in which there're 57% occured in one year, This shows a medium-and short-term criterion. Distance between earthquake swarm and future earthquake was distributed dispersedly. There were no earthquakes occurring in the same location as earthquake swarms. There was no good correlation between the magnitude and the corresponding rate of future earthquakes and the intensity of earthquake swarms. There was also no good correlation between the number of earthquakes in an earthquake swarm and the corresponding rate. The study also shows that it's better to use U-p or whole-combination to determine the type of earthquake swarm. 展开更多
关键词 Jiangsu and its adjacent area Earthquake swarms Characteristics ofearthquake swarms Criteria for precursory earthquake swarm
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Identification of Five Stages of Dike Swarms in the Shanxi-Hebei-Inner Mongolia Border Area and Its Tectonic Implications 被引量:9
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作者 SHAOJi'an ZHAIMingguo +1 位作者 ZHANGLüqiao LIDaming 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2004年第1期320-330,共11页
Dike swarms are generally ascribed to intrusion of mantle-source magma result from extension. Basic dike swarms around the Shanxi-Hebei-Inner Mogolia borders in the northern peripheral area of the North China Craton c... Dike swarms are generally ascribed to intrusion of mantle-source magma result from extension. Basic dike swarms around the Shanxi-Hebei-Inner Mogolia borders in the northern peripheral area of the North China Craton can be divided into five age groups according to isotopic dating: 1800-1700 Ma, 800-700 Ma, 230 Ma, 140-120 Ma, and 50-40 Ma. Geological, petrological and isotope geochemical features of the five groups is investigated in order to explore the variation of the mantle material composition in the concerned area with time. And the various extensional activities reflected by the five groups of dike swarms are compared with some important tectonic events within the North China Craton as well as around the world during the same period. 展开更多
关键词 dike swarms North China Craton extensional events isotopic dating global tectonic movement
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Self-organized motion in anisotropic swarms 被引量:7
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作者 TianguangCHU LongWANG TongwenCHEN 《控制理论与应用(英文版)》 EI 2003年第1期77-81,共5页
This paper considers an anisotropic swarm model with a class of attraction and repulsion functions. It is shown that the members of the swarm will aggregate and eventually form a cohesive cluster of finite size around... This paper considers an anisotropic swarm model with a class of attraction and repulsion functions. It is shown that the members of the swarm will aggregate and eventually form a cohesive cluster of finite size around the swarm center. Moreover, It is also proved that under certain conditions, the swarm system can be completely stable, i.e., every solution converges to the equilibrium points of the system. The model and results of this paper extend a recent work on isotropic swarms to more general cases and provide further insight into the effect of the interaction pattern on self-organized motion in a swarm system. Keywords Biological systems - Multiagent systems - Pattern formation - Stability - Swarms This work was supported by the National Natural Science Foundation of China (No. 60274001 and No. 10372002) and the National Key Basic Research and Development Program (No.2002CB312200). 展开更多
关键词 Biological systems Multiagent systems Pattern formation STABILITY swarms
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Geochemistry and Emplacement of Post-collisional Shoshonitic Dyke Swarms, NW of Iran 被引量:3
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作者 A.Jahangiri M.Fadaeian A.Songjian 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2016年第S1期99-,共1页
About 300 mafic dykes are intruded Eocene volcanic and pyroclastic rocks,north east of Meshkinshahr city in the NW of Iran.Most of dyke swarms display NNE-SSE trend.Their composition varies from basalt to tephrite and
关键词 Geochemistry and Emplacement of Post-collisional Shoshonitic Dyke swarms NW of Iran
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Giant Circumferential Dyke Swarms on Earth: Possible Analogues of Coronae on Venus and Similar Features on Mars 被引量:2
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作者 Kenneth L.BUCHAN Richard E.ERNST 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2016年第S1期186-187,共2页
Venusian coronae are large(60-2600 km diameter)tectono-magmatic features characterized by quasi-circular graben-fissure systems and topographic features such as a central dome,central depression,circular rim or circular
关键词 Giant Circumferential Dyke swarms on Earth Possible Analogues of Coronae on Venus and Similar Features on Mars
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Geochronology, Geochemistry and Tectonic Significance of Dike Swarms in Beishan, Gansu 被引量:1
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作者 QI Qi WANG Yonghe +4 位作者 FENG Minxuan YANG Jianguo YU Jiyuan WANG Lei WANG Xiaohong 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2016年第S1期114-115,共2页
Study area is located at Beishan,Gansu province.Beishan area located at conjunction site among Tarim plate,Sino-Korean plate and Kazakhstan plate,this special tectonic position has a very complex geological tectonic.
关键词 Th GANSU Geochemistry and Tectonic Significance of Dike swarms in Beishan GEOCHRONOLOGY
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Mechanics of Mafic Dyke Swarms and Breakup of Supercontinent 被引量:1
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作者 HOU Guiting 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2016年第S1期155-156,共2页
Dyke swarms can be divided into three types:parallel dyke swarms,radiating dyke swarms and fan-shape dyke swarm,for which the mechanisms of formation are different(Fig.1).Parallel dyke swarms form in response
关键词 LI Mechanics of Mafic Dyke swarms and Breakup of Supercontinent NCC
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The Spatial-Temporal Distribution Patterns of Dyke Swarms in Central Asia and their Tectonic Significance: Case Studies in Eastern Tianshan and Western Junggar 被引量:1
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作者 FENG Qianwen LI Jinyi LIU Jianfeng 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2016年第S1期152-153,共2页
Dykes are a special kind of intrusive rocks which were formed by deep magma intruded into the existing brittle fractures in the crust.Dykes swarms in different tectonic environments are very significant to re-construc... Dykes are a special kind of intrusive rocks which were formed by deep magma intruded into the existing brittle fractures in the crust.Dykes swarms in different tectonic environments are very significant to re-construct the 展开更多
关键词 deep Asia Case Studies in Eastern Tianshan and Western Junggar The Spatial-Temporal Distribution Patterns of Dyke swarms in Central Asia and their Tectonic Significance
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Tectonic Environments of the Yan-Liao Rift during Earth's Middle Age(1.7~0.75 Ga): Evidence from Mafic Dyke Swarms in Eastern Hebei, North China 被引量:1
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作者 WANG Chong PENG Peng +1 位作者 WANG Xinping YANG Shuyan 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2016年第S1期45-46,共2页
During the past decade,generations of Precambrian mafic dykes/sills have been investigated and revealed in the North China Craton(NCC).Researchers identified more than 20 episodes of Precambrian dyke swarms,
关键词 North China Tectonic Environments of the Yan-Liao Rift during Earth’s Middle Age Evidence from Mafic Dyke swarms in Eastern Hebei Ga
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1:2500 000 Map of Precambrian Dyke Swarms and Related Units in North China 被引量:2
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作者 PENG Peng 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2016年第S1期16-,共1页
A 1:2500 000 map of major Precambrian mafic dyke swarms and related units in the North China Craton will be presented,and the features and geological implications of;0 swarms will be discussed and summarized:
关键词 Map of Precambrian Dyke swarms and Related Units in North China
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Elusive Cenozoic Metamorphism in Mafic Dike Swarms within the Tethyan Himalaya, Southern Tibet 被引量:1
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作者 ZENG Lingsen WANG Yuhua +1 位作者 GAO Li'E WANG Yaying 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2016年第S1期86-87,共2页
Mafic dike swarms are well-developed within the Tethyan Himalaya,southern Tibet,in response to the breakup of Gondwana supercontinent,seafloor spreading of the Tethyan Ocean,and forearc hyperextension during the
关键词 Elusive Cenozoic Metamorphism in Mafic Dike swarms within the Tethyan Himalaya
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GRAVITY SETTLING OF DISPERSED PHASE DROP SWARMS IN EXTRACTION COLUMNS IN ABSENCE OF MASS TRANSFER
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作者 鲍晓军 陈家镛 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 1994年第1期11-22,共12页
Taking into account the effect of velocity profiles of the continuous phase in interstices of drops,dragcoefficient and relative motion correlations for dispersed liquid-liquid two-phase flow in absence of mass transf... Taking into account the effect of velocity profiles of the continuous phase in interstices of drops,dragcoefficient and relative motion correlations for dispersed liquid-liquid two-phase flow in absence of mass transferwere developed in terms of the pseudo-fluid concept based on the simple similarity criteria and the mixtureviscosity model suggested by Ishii and Zuber.The present model was compared with the experimental data fromfive(different sources and also with seven other pertinent correlations available in literature.Fairly goodpredictions were obtained under wide ranges of the dispersed phase holdup and Reynolds number.The validity ofthe present model has also been checked against the experimental slip velocity data and holdup data obtained ina Karr reciprocating plate extraction column by the author of the present paper and satisfactory agreement isachieved、The results show that the equations of the motion of a multi-droplet system can be formulated in aform identical with those for a single 展开更多
关键词 DROP swarms motion extraction COLUMN
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Dyke Swarms: Keys to Paleogeographic Reconstructions, Preface for IDC7 2016
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作者 PENG Peng Richard ERNST 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2016年第S1期3-5,共3页
Focusing on geological,geochemical and geophysical aspects of dykes and related units,the International Dyke Conference(IDC)series was launched in Toronto,Canada in 1985 by Prof.Henry C.Halls(University of Toronto).It... Focusing on geological,geochemical and geophysical aspects of dykes and related units,the International Dyke Conference(IDC)series was launched in Toronto,Canada in 1985 by Prof.Henry C.Halls(University of Toronto).It has continued approximately every five years with 展开更多
关键词 IDC Dyke swarms Keys to Paleogeographic Reconstructions Preface for IDC7 2016
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Extensional Tectonics, Rifting, Formation of Sedimentary Basins, Cretaceous Volcanism, Emplacement of Dyke Swarms and Development of Hydrocarbon Pools: Case Studies from Peninsular India and Indian Ocean Region
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作者 K.S.MISRA 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2016年第S1期61-62,共2页
Prolonged extensional regime in peninsular India resulted in formation of rift and grabens,elongated basins and Gondwana sedimentation along them.Downward progression of rift related faults caused decompression
关键词 Extensional Tectonics Formation of Sedimentary Basins RIFTING Cretaceous Volcanism Emplacement of Dyke swarms and Development of Hydrocarbon Pools
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Mafic dykes swarms from the Chhotanagpur Gneiess Complex, Singhbhum craton, eastern India
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作者 Anup K.Sinha Rajesh K.Srivastava 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2016年第S1期92-,共1页
The Singhbhum craton of the eastern Indian shield consists of two major crustal provinces viz.,Chotanagpur Gneissic Complex(CGC)and Singhbhum Granite Complex;separated by a Singhbhum Mobile Belt.There
关键词 eastern India CGC Mafic dykes swarms from the Chhotanagpur Gneiess Complex Singhbhum craton
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Does Geochronology of Few Dykes of a Swarm are True Representative of All Dykes of the Same Magmatic Event?: Constraints from the Geochemistry and Google^(TM) Earth Image–ArcG IS^(TM) Studies of the Paleoproterozoic Mafic Dyke Swarms of the Eastern Dharwa
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作者 Amiya K.Samal Rajesh K.Srivastava 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2016年第S1期2-3,共2页
A precise dating of a mafic dyke of a swarm in shield areas has great advantage to identify Large Igneous Provinces(LIPs;short-lived,mantle-generated magmatic event)(Bryan and Ernst,2008;Ernst et al.,2010).Such
关键词 Does Geochronology of Few Dykes of a Swarm are True Representative of All Dykes of the Same Magmatic Event Earth Image Studies of the Paleoproterozoic Mafic Dyke swarms of the Eastern Dharwa Constraints from the Geochemistry and Google ArcG IS TRUE TM
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