首页 > 最新文献

Journal of Aerospace Information Systems最新文献

英文 中文
Research on Optical Site Diversity for Space Communications over Asia-Pacific Region 亚太地区空间通信光站点分集研究
IF 1.5 4区 工程技术 Q2 ENGINEERING, AEROSPACE Pub Date : 2023-12-29 DOI: 10.2514/1.i010996
Tatsuya Mukai, Yoshihisa Takayama
Journal of Aerospace Information Systems, Ahead of Print.
航空航天信息系统期刊》,提前印刷。
{"title":"Research on Optical Site Diversity for Space Communications over Asia-Pacific Region","authors":"Tatsuya Mukai, Yoshihisa Takayama","doi":"10.2514/1.i010996","DOIUrl":"https://doi.org/10.2514/1.i010996","url":null,"abstract":"Journal of Aerospace Information Systems, Ahead of Print. <br/>","PeriodicalId":50260,"journal":{"name":"Journal of Aerospace Information Systems","volume":"20 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139068885","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
Risk Assessment Procedure of Final Approach to Landing Using Deep Learning 利用深度学习对最终着陆方式进行风险评估的程序
IF 1.5 4区 工程技术 Q2 ENGINEERING, AEROSPACE Pub Date : 2023-12-09 DOI: 10.2514/1.i011177
Pei-Chen Tsai, Ying-Chih Lai
Journal of Aerospace Information Systems, Ahead of Print.
航空航天信息系统期刊》,提前印刷。
{"title":"Risk Assessment Procedure of Final Approach to Landing Using Deep Learning","authors":"Pei-Chen Tsai, Ying-Chih Lai","doi":"10.2514/1.i011177","DOIUrl":"https://doi.org/10.2514/1.i011177","url":null,"abstract":"Journal of Aerospace Information Systems, Ahead of Print. <br/>","PeriodicalId":50260,"journal":{"name":"Journal of Aerospace Information Systems","volume":"53 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138560128","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
Multi-Agent Task Allocation with Interagent Distance Constraints 具有agent间距离约束的多agent任务分配
IF 1.5 4区 工程技术 Q2 ENGINEERING, AEROSPACE Pub Date : 2023-11-30 DOI: 10.2514/1.i011272
Euihyeon Choi, Woohyuk Chang
Journal of Aerospace Information Systems, Ahead of Print.
航空航天信息系统杂志,出版前。
{"title":"Multi-Agent Task Allocation with Interagent Distance Constraints","authors":"Euihyeon Choi, Woohyuk Chang","doi":"10.2514/1.i011272","DOIUrl":"https://doi.org/10.2514/1.i011272","url":null,"abstract":"Journal of Aerospace Information Systems, Ahead of Print. <br/>","PeriodicalId":50260,"journal":{"name":"Journal of Aerospace Information Systems","volume":"131 5","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138519968","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
Optimal Mission Planning for Multiple Agile Satellites Using Modified Dynamic Programming 基于改进动态规划的多颗敏捷卫星任务优化规划
IF 1.5 4区 工程技术 Q2 ENGINEERING, AEROSPACE Pub Date : 2023-11-30 DOI: 10.2514/1.i011270
Kimoon Lee, Dong-Jin Kim, Dae-Won Chung, Seonho Lee
Journal of Aerospace Information Systems, Ahead of Print.
航空航天信息系统杂志,出版前。
{"title":"Optimal Mission Planning for Multiple Agile Satellites Using Modified Dynamic Programming","authors":"Kimoon Lee, Dong-Jin Kim, Dae-Won Chung, Seonho Lee","doi":"10.2514/1.i011270","DOIUrl":"https://doi.org/10.2514/1.i011270","url":null,"abstract":"Journal of Aerospace Information Systems, Ahead of Print. <br/>","PeriodicalId":50260,"journal":{"name":"Journal of Aerospace Information Systems","volume":"45 4","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138519957","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
Design, Selection, and Evaluation of Reinforcement Learning Single Agents for Ground Target Tracking 用于地面目标跟踪的强化学习单智能体的设计、选择和评估
4区 工程技术 Q2 ENGINEERING, AEROSPACE Pub Date : 2023-11-14 DOI: 10.2514/1.i011284
Hannah Lehman, John Valasek
Previous approaches for small fixed-wing unmanned air systems that carry strapdown rather than gimbaled cameras achieved satisfactory ground target tracking performance using both standard and deep reinforcement learning algorithms. However, these approaches have significant restrictions and abstractions to the dynamics of the vehicle, such as constant airspeed and constant altitude, because the number of states and actions was necessarily limited. Thus, extensive tuning was required to obtain good tracking performance. The expansion from 4 state–action degrees of freedom to 15 enabled the agent to exploit previous reward functions that produced novel yet undesirable emergent behavior. This paper investigates the causes of and various potential solutions to undesirable emergent behavior in the ground target tracking problem. A combination of changes to the environment, reward structure, action space simplification, command rate, and controller implementation provides insight into obtaining stable tracking results. Consideration is given to reward structure selection and refinement to mitigate undesirable emergent behavior. Results presented in the paper for a simulated environment of a single unmanned air system tracking a randomly moving single ground target show that a soft actor–critic algorithm can produce feasible tracking trajectories without limiting the state space and action space, provided that the environment is properly posed.
先前的小型固定翼无人机系统使用标准和深度强化学习算法实现了令人满意的地面目标跟踪性能,该系统携带的是捷联式而不是平衡式摄像机。然而,这些方法对飞行器的动力学有明显的限制和抽象,比如恒定空速和恒定高度,因为状态和动作的数量必然是有限的。因此,需要进行大量调优以获得良好的跟踪性能。从4个状态-行动自由度扩展到15个自由度,使代理能够利用之前产生新颖但不受欢迎的紧急行为的奖励函数。本文研究了地面目标跟踪问题中产生不良紧急行为的原因和各种可能的解决方法。环境变化、奖励结构、动作空间简化、命令率和控制器实现的组合为获得稳定的跟踪结果提供了洞察力。考虑奖励结构的选择和优化,以减轻不良的突发行为。本文对单个无人机系统跟踪随机移动的单个地面目标的模拟环境进行了研究,结果表明,只要环境设定得当,软行为者评价算法可以在不限制状态空间和动作空间的情况下产生可行的跟踪轨迹。
{"title":"Design, Selection, and Evaluation of Reinforcement Learning Single Agents for Ground Target Tracking","authors":"Hannah Lehman, John Valasek","doi":"10.2514/1.i011284","DOIUrl":"https://doi.org/10.2514/1.i011284","url":null,"abstract":"Previous approaches for small fixed-wing unmanned air systems that carry strapdown rather than gimbaled cameras achieved satisfactory ground target tracking performance using both standard and deep reinforcement learning algorithms. However, these approaches have significant restrictions and abstractions to the dynamics of the vehicle, such as constant airspeed and constant altitude, because the number of states and actions was necessarily limited. Thus, extensive tuning was required to obtain good tracking performance. The expansion from 4 state–action degrees of freedom to 15 enabled the agent to exploit previous reward functions that produced novel yet undesirable emergent behavior. This paper investigates the causes of and various potential solutions to undesirable emergent behavior in the ground target tracking problem. A combination of changes to the environment, reward structure, action space simplification, command rate, and controller implementation provides insight into obtaining stable tracking results. Consideration is given to reward structure selection and refinement to mitigate undesirable emergent behavior. Results presented in the paper for a simulated environment of a single unmanned air system tracking a randomly moving single ground target show that a soft actor–critic algorithm can produce feasible tracking trajectories without limiting the state space and action space, provided that the environment is properly posed.","PeriodicalId":50260,"journal":{"name":"Journal of Aerospace Information Systems","volume":"14 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134991444","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
Intersection Planning for Multilane Unmanned Aerial Vehicle Traffic Management 多车道无人机交通管理的交叉口规划
4区 工程技术 Q2 ENGINEERING, AEROSPACE Pub Date : 2023-11-10 DOI: 10.2514/1.i011307
Samiksha Rajkumar Nagrare, Ashwini Ratnoo, Debasish Ghose
Unmanned aerial system (UAS) traffic management of airspace is a domain that demands strategic management of unmanned aerial vehicles (UAVs) for smooth and conflict-free movement in the uncharted low-altitude G airspace. In the context of the previously proposed CORRIDRONE structure, UAV traffic has to be organized in a shared volume of airspace connecting two or more corridors for a network of multilane corridors, resulting in the formation of aerial intersections. In this work, an intersection planning algorithm is proposed that aims to provide no-conflict paths to the UAVs inside the intersection volume. Paths are modeled as a function of the lanes involved in the transition, and conflict resolution is achieved by changing lanes. Optimized solutions are found among the conflicted UAV paths, such that only a few paths need modifying, optimizing the number of lane changes and time spent in the intersection. Simulation results, including random starting time intervals, various UAV sizes, corridor sizes, and differing numbers of lanes in intersecting corridors, are presented to demonstrate the concepts discussed in the paper.
空域无人机系统(UAS)交通管理是一个需要对无人机(uav)在未知低空G空域中平稳无冲突移动进行战略管理的领域。在先前提出的CORRIDRONE结构的背景下,无人机交通必须组织在连接两个或更多通道的共享空域中,形成多车道走廊网络,从而形成空中交叉路口。本文提出了一种交叉口规划算法,旨在为无人机在交叉口体内提供无冲突路径。路径被建模为转换过程中所涉及的车道的函数,而冲突的解决是通过改变车道来实现的。在冲突路径中找到最优解,使得只有少数路径需要修改,优化变道次数和在交叉口花费的时间。仿真结果包括随机启动时间间隔、不同无人机尺寸、走廊尺寸和不同车道数的交叉走廊,以证明本文所讨论的概念。
{"title":"Intersection Planning for Multilane Unmanned Aerial Vehicle Traffic Management","authors":"Samiksha Rajkumar Nagrare, Ashwini Ratnoo, Debasish Ghose","doi":"10.2514/1.i011307","DOIUrl":"https://doi.org/10.2514/1.i011307","url":null,"abstract":"Unmanned aerial system (UAS) traffic management of airspace is a domain that demands strategic management of unmanned aerial vehicles (UAVs) for smooth and conflict-free movement in the uncharted low-altitude G airspace. In the context of the previously proposed CORRIDRONE structure, UAV traffic has to be organized in a shared volume of airspace connecting two or more corridors for a network of multilane corridors, resulting in the formation of aerial intersections. In this work, an intersection planning algorithm is proposed that aims to provide no-conflict paths to the UAVs inside the intersection volume. Paths are modeled as a function of the lanes involved in the transition, and conflict resolution is achieved by changing lanes. Optimized solutions are found among the conflicted UAV paths, such that only a few paths need modifying, optimizing the number of lane changes and time spent in the intersection. Simulation results, including random starting time intervals, various UAV sizes, corridor sizes, and differing numbers of lanes in intersecting corridors, are presented to demonstrate the concepts discussed in the paper.","PeriodicalId":50260,"journal":{"name":"Journal of Aerospace Information Systems","volume":"102 21","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135137855","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
Assessment of Approach and Departure Paths for Vertical Takeoff and Landing Aircraft 垂直起降飞机进场和离场路径的评估
4区 工程技术 Q2 ENGINEERING, AEROSPACE Pub Date : 2023-11-08 DOI: 10.2514/1.i011278
Suyoung Shin, Keumjin Lee
Open AccessTechnical NotesAssessment of Approach and Departure Paths for Vertical Takeoff and Landing AircraftSuyoung Shin and Keumjin LeeSuyoung ShinKorea Aerospace University, Goyang 412-791, Republic of Korea*Graduate Student, Department of Air Transportation; currently Junior Engineer, Hanwha Systems; .Search for more papers by this author and Keumjin Lee https://orcid.org/0000-0002-3938-449XKorea Aerospace University, Goyang 412-791, Republic of Korea†Professor, Department of Air Transportation; . Member AIAA (Corresponding Author).Search for more papers by this authorPublished Online:8 Nov 2023https://doi.org/10.2514/1.I011278SectionsRead Now ToolsAdd to favoritesDownload citationTrack citations ShareShare onFacebookTwitterLinked InRedditEmail AboutNomenclatureAset of available approach and departure directionsFATObackback distance of obstacle-free volume on final approach and takeoff areaFATOfrontfront distance of obstacle-free volume on final approach and takeoff areaFATOwidthwidth of obstacle-free volume on final approach and takeoff areah1low hover height of obstacle-free volumeh2high hover height of obstacle-free volumeIobsset of indies of the voxels that Pobs occupiesIOFV(ψ)set of indies of the voxels that POFV(ψ) occupiesKnumber of buildingsLnumber of pointslix-axis index of the voxel where pi occupiesMnumber of IOFVmiy-axis index of the voxel where pi occupiesNnumber of IobsNxsize of voxelated space in x directionNysize of voxelated space in y directionNzsize of voxelated space in z directionniz-axis index of the voxel where pi occupiesPobsset of points that represent obstacle dataPOFV(ψ)set of points that represent obstacle-free volume in a specific orientation angle ψpiith point in Psxvoxel size in x directionsyvoxel size in y directionszvoxel size in z directionTObackback distance of obstacle-free volume at h2TOfrontfront distance obstacle-free volume at h2TOwidthwidth of obstacle-free volume at h2Vset of voxels for the region of interestvlmnvoxel located at l, m, and n in the x, y, and z directions, respectivelyxix-axis coordinate of pixox-axis coordinate of reference point of voxelated spaceyiy-axis coordinate of piyoy-axis coordinate of reference point of voxelated spaceziz-axis coordinate of pizoz-axis coordinate of reference point of voxelated spaceα(Θ)directional availability under Θδappdivergence of approach surfaceδdepdivergence of departure surfaceΘset of the specification parameters of obstacle-free volumeθappslope of approach surfaceθdepslope of departure surfaceΨset of orientation angles of obstacle-free volumeψorientation angle between the true north and the centerline of approach/departure surfaceI. IntroductionUrban air mobility (UAM) is a new form of transportation to take passengers and cargo over urban areas, in turn promoting reduced traffic congestion and CO2 emissions [1,2]. Yet, the safety of low-altitude flights in congested areas must be addressed before UAM is used commercially. Especially, identifying av
此外,悬停高度(h1, h2)、坡度(θapp/dep)、散度(δapp/dep)等其他规格参数设置为与欧盟航空安全局(EASA)提供的垂直口标准中概述的参考体积相同的值[13]。如图8所示,双向OFV获得了更大的方向可用性,而全向OFV由于截面更大,可用的进近或出发方向受到更大的约束。在图中,蓝色阴影区域表示UAM飞机到垂直口的可能进近或起飞方向。定义方向可获得性为α(Θ),其中|⋅|表示集合的基数,Θ表示ofv的规格参数。7全向和双向OFV截面:a) FATO和b) TO。研究了定向有效性对D和OFV高悬停高度h2的敏感性。图9显示了不同参数组合的方向可用性。为便于比较,图中也用红色虚线表示了常规OLS在直升机场设计中的方向可用性。对于全向和双向ofv,方向可用性随着D的减小和h2的增加而增加。与双向OFV相比,全向OFV对D的变化更敏感,但当h2足够高时,或大约在35 m≤h2时,其影响的限制性减弱。该分析提供了UAM飞机的最大尺寸与着陆或起飞轨迹所需的垂直部分高度之间的权衡。虽然更长的垂直起降段可以增加方向性,但也必须考虑飞机在故障条件下的操纵质量和离地间隙[13]。进近或出发的方向可用性:a)双向和b)全向。所提出方法的每一步的时间复杂度如表2所示。第一步和第二步(即点建模和体素化)的执行次数随其输入大小线性增加。然而,由于在比较Iobs和IOFV中的索引时使用了二进制搜索过程,因此重叠检测的最后一步的时间复杂度是对数线性的。在本文提供的示例中,双向OFV的实际计算时间约为48秒,全向OFV的实际计算时间约为64秒。这些计算是在一台配备英特尔酷睿i7处理器的台式个人电脑上进行的。每一步的计算时间分布如图10所示。注意,通过增加单位体素大小可以显著减少所提出方法的计算时间。因此,单位体素大小的选择可以根据具体分析的目的进行定制。a)双向ofv和b)全向ofv的方向可用性。10分析可用进近/离场方向的计算时间分布。我们提出了一种实用的方法,使用OFV来识别垂直机场UAM进近/离场路径的可用方向,该路径与障碍物安全分离。本研究在方法和操作方面有两个主要贡献。在方法上,我们提出了一种计算效率高的地理分析方法。在本研究中,我们使用点建模和体素化方法,使我们能够以统一的形式对障碍物数据和ofv进行建模,并使用简单的公式直接检测ofv与障碍物之间的重叠。体素化检测OFV和障碍物之间的任何重叠,使方向可用性更容易识别。在操作方面,我们验证了OFV的有效性。我们比较了不同OFV的方向可用性,发现全向OFV的可用性较低。结果表明,考虑到高飞行自由度对障碍物的高度限制,应谨慎选择OFV。在敏感性分析中,我们发现除了垂直飞行高度外,飞机的尺寸对方向性可用性也有显著影响。通过与传统OLS的比较,我们发现足够高的垂直起降机动对于实现OFV的优势至关重要。未来的工作应侧重于基于UAM飞机性能优化OFV规格参数,以及通过使用弯曲的进近面和离场面来提高方向可用性。该方法有助于城市空域UAM的高效集成,具有实际应用的潜力。
{"title":"Assessment of Approach and Departure Paths for Vertical Takeoff and Landing Aircraft","authors":"Suyoung Shin, Keumjin Lee","doi":"10.2514/1.i011278","DOIUrl":"https://doi.org/10.2514/1.i011278","url":null,"abstract":"Open AccessTechnical NotesAssessment of Approach and Departure Paths for Vertical Takeoff and Landing AircraftSuyoung Shin and Keumjin LeeSuyoung ShinKorea Aerospace University, Goyang 412-791, Republic of Korea*Graduate Student, Department of Air Transportation; currently Junior Engineer, Hanwha Systems; .Search for more papers by this author and Keumjin Lee https://orcid.org/0000-0002-3938-449XKorea Aerospace University, Goyang 412-791, Republic of Korea†Professor, Department of Air Transportation; . Member AIAA (Corresponding Author).Search for more papers by this authorPublished Online:8 Nov 2023https://doi.org/10.2514/1.I011278SectionsRead Now ToolsAdd to favoritesDownload citationTrack citations ShareShare onFacebookTwitterLinked InRedditEmail AboutNomenclatureAset of available approach and departure directionsFATObackback distance of obstacle-free volume on final approach and takeoff areaFATOfrontfront distance of obstacle-free volume on final approach and takeoff areaFATOwidthwidth of obstacle-free volume on final approach and takeoff areah1low hover height of obstacle-free volumeh2high hover height of obstacle-free volumeIobsset of indies of the voxels that Pobs occupiesIOFV(ψ)set of indies of the voxels that POFV(ψ) occupiesKnumber of buildingsLnumber of pointslix-axis index of the voxel where pi occupiesMnumber of IOFVmiy-axis index of the voxel where pi occupiesNnumber of IobsNxsize of voxelated space in x directionNysize of voxelated space in y directionNzsize of voxelated space in z directionniz-axis index of the voxel where pi occupiesPobsset of points that represent obstacle dataPOFV(ψ)set of points that represent obstacle-free volume in a specific orientation angle ψpiith point in Psxvoxel size in x directionsyvoxel size in y directionszvoxel size in z directionTObackback distance of obstacle-free volume at h2TOfrontfront distance obstacle-free volume at h2TOwidthwidth of obstacle-free volume at h2Vset of voxels for the region of interestvlmnvoxel located at l, m, and n in the x, y, and z directions, respectivelyxix-axis coordinate of pixox-axis coordinate of reference point of voxelated spaceyiy-axis coordinate of piyoy-axis coordinate of reference point of voxelated spaceziz-axis coordinate of pizoz-axis coordinate of reference point of voxelated spaceα(Θ)directional availability under Θδappdivergence of approach surfaceδdepdivergence of departure surfaceΘset of the specification parameters of obstacle-free volumeθappslope of approach surfaceθdepslope of departure surfaceΨset of orientation angles of obstacle-free volumeψorientation angle between the true north and the centerline of approach/departure surfaceI. IntroductionUrban air mobility (UAM) is a new form of transportation to take passengers and cargo over urban areas, in turn promoting reduced traffic congestion and CO2 emissions [1,2]. Yet, the safety of low-altitude flights in congested areas must be addressed before UAM is used commercially. Especially, identifying av","PeriodicalId":50260,"journal":{"name":"Journal of Aerospace Information Systems","volume":"30 S94","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135343232","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
Remaining Flying Time Prediction of Unmanned Aerial Vehicles Under Different Load Conditions 不同载荷条件下无人机剩余飞行时间预测
4区 工程技术 Q2 ENGINEERING, AEROSPACE Pub Date : 2023-11-07 DOI: 10.2514/1.i011198
Junchuan Shi, Wendy A. Okolo, Dazhong Wu
Unmanned aerial vehicles (UAVs) are forecast to be widely used in the military and civilian domains. The remaining flying time is a critical parameter to monitor during a flight to ensure the safety of electric UAVs (e-UAVs). However, accurate remaining flying time prediction under different load conditions requires a large amount of data and is computationally expensive for online applications. To address these issues, a deep learning approach based on temporal convolutional networks and transfer learning is developed for lithium-ion battery systems for e-UAVs. A temporal convolutional network is used to extract features from monitoring data and predict the remaining flying time of flights under one load condition. A layer transfer strategy is then used to transfer the knowledge learned from one load condition to another load condition. Battery health monitoring data collected from a fixed-wing e-UAV are used to demonstrate the effectiveness of the proposed method. Experimental results show that the proposed temporal convolutional network with the transfer learning strategy can predict the remaining flying time of the e-UAV under two load conditions more efficiently and accurately than a temporal convolutional network without transfer learning.
预计无人机将在军事和民用领域得到广泛应用。剩余飞行时间是保证电动无人机飞行安全的关键参数。然而,准确预测不同载荷条件下的剩余飞行时间需要大量的数据,并且在线应用的计算成本很高。为了解决这些问题,研究人员开发了一种基于时间卷积网络和迁移学习的深度学习方法,用于电动无人机的锂离子电池系统。利用时序卷积网络从监测数据中提取特征,预测某一载荷条件下航班的剩余飞行时间。然后使用一种层传递策略将学习到的知识从一种负载条件转移到另一种负载条件。利用固定翼e-UAV的电池健康监测数据验证了所提方法的有效性。实验结果表明,采用迁移学习策略的时间卷积网络比不采用迁移学习的时间卷积网络更有效、准确地预测了两种载荷条件下电子无人机的剩余飞行时间。
{"title":"Remaining Flying Time Prediction of Unmanned Aerial Vehicles Under Different Load Conditions","authors":"Junchuan Shi, Wendy A. Okolo, Dazhong Wu","doi":"10.2514/1.i011198","DOIUrl":"https://doi.org/10.2514/1.i011198","url":null,"abstract":"Unmanned aerial vehicles (UAVs) are forecast to be widely used in the military and civilian domains. The remaining flying time is a critical parameter to monitor during a flight to ensure the safety of electric UAVs (e-UAVs). However, accurate remaining flying time prediction under different load conditions requires a large amount of data and is computationally expensive for online applications. To address these issues, a deep learning approach based on temporal convolutional networks and transfer learning is developed for lithium-ion battery systems for e-UAVs. A temporal convolutional network is used to extract features from monitoring data and predict the remaining flying time of flights under one load condition. A layer transfer strategy is then used to transfer the knowledge learned from one load condition to another load condition. Battery health monitoring data collected from a fixed-wing e-UAV are used to demonstrate the effectiveness of the proposed method. Experimental results show that the proposed temporal convolutional network with the transfer learning strategy can predict the remaining flying time of the e-UAV under two load conditions more efficiently and accurately than a temporal convolutional network without transfer learning.","PeriodicalId":50260,"journal":{"name":"Journal of Aerospace Information Systems","volume":"106 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135540395","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
Fuzzy Adaptive Nonsingular Terminal Sliding Mode Control of a Miniature Helicopter 微型直升机模糊自适应非奇异终端滑模控制
4区 工程技术 Q2 ENGINEERING, AEROSPACE Pub Date : 2023-11-07 DOI: 10.2514/1.i011156
Reihaneh Kardehi Moghaddam, Javad Baratpoor
This paper presents a fuzzy adaptive terminal sliding mode control for an unmanned miniature helicopter including uncertainties and external disturbances, and a terminal sliding surface is utilized to provide faster convergence. Due to the fact that the presented controlled system is facing a singularity problem, the controlling structure is developed to a nonsingular one. In the proposed controlling structure, a continuous nonsingular terminal sliding mode control is combined with an adaptive learning algorithm and fuzzy logic system to estimate the uncertainties; and the parameter adaptation law is obtained based on the Lyapunov stability theorem. Analytical results show that the proposed approach enables a faster and more accurate tracking performance as compared to recent controlling methods.
提出了一种考虑不确定性和外界干扰的微型无人直升机模糊自适应终端滑模控制方法,并利用终端滑模面提供更快的收敛速度。针对被控系统存在的奇异性问题,将控制结构发展为非奇异结构。在该控制结构中,将连续非奇异终端滑模控制与自适应学习算法和模糊逻辑系统相结合来估计不确定性;并根据Lyapunov稳定性定理得到了参数自适应规律。分析结果表明,与现有的控制方法相比,该方法具有更快、更精确的跟踪性能。
{"title":"Fuzzy Adaptive Nonsingular Terminal Sliding Mode Control of a Miniature Helicopter","authors":"Reihaneh Kardehi Moghaddam, Javad Baratpoor","doi":"10.2514/1.i011156","DOIUrl":"https://doi.org/10.2514/1.i011156","url":null,"abstract":"This paper presents a fuzzy adaptive terminal sliding mode control for an unmanned miniature helicopter including uncertainties and external disturbances, and a terminal sliding surface is utilized to provide faster convergence. Due to the fact that the presented controlled system is facing a singularity problem, the controlling structure is developed to a nonsingular one. In the proposed controlling structure, a continuous nonsingular terminal sliding mode control is combined with an adaptive learning algorithm and fuzzy logic system to estimate the uncertainties; and the parameter adaptation law is obtained based on the Lyapunov stability theorem. Analytical results show that the proposed approach enables a faster and more accurate tracking performance as compared to recent controlling methods.","PeriodicalId":50260,"journal":{"name":"Journal of Aerospace Information Systems","volume":"2 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135479597","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
Data-Driven Hazard Avoidance Landing of Parafoil: A Deep Reinforcement Learning Approach 数据驱动的滑翔伞避险着陆:一种深度强化学习方法
4区 工程技术 Q2 ENGINEERING, AEROSPACE Pub Date : 2023-11-02 DOI: 10.2514/1.i011281
Junwoo Park, Hyochoong Bang
This paper examines a couple of realizations of autonomous landing hazard avoidance technology of parafoil: a reinforcement-learning-based approach and a rule-based approach, advocating the former. Furthermore, comparative advantages and behavioral analogies between the two approaches are presented. In the data-driven approach, a decision process observing only a series of nadir-pointing images is designed without explicit augmentation of vehicle dynamics for the homogeneity of observation data. An agent then learns the hazard avoidance steering law in an end-to-end fashion. On the contrary, the rule-based approach is facilitated via explicit notions of guidance-control hierarchy, vehicle dynamic states, and metric details of ground obstacles. The soft actor–critic method is applied to learn a policy that maps the down-looking images to parafoil brakes, whereas a vector field guidance law is employed in the rule-based approach, considering each hazard as a repulsive source. This paper then presents empirical equivalences in designing both approaches and their distinctions. Numerical experiments in multiple test cases validate the reinforcement learning method and present comparisons between the approaches regarding their resultant trajectories. The interesting behaviors of the resultant policy of the data-driven approach are emphasized.
本文研究了伞翼自主着陆避险技术的两种实现方法:基于强化学习的方法和基于规则的方法,并提倡前者。此外,还介绍了两种方法的比较优势和行为类比。在数据驱动方法中,设计了一个仅观察一系列最低点图像的决策过程,而没有明确增强观测数据的均匀性。然后,智能体以端到端的方式学习避免危险的转向律。相反,基于规则的方法通过明确的制导控制层次、车辆动态状态和地面障碍物度量细节的概念来促进。采用软行为者-评论家方法学习将向下看图像映射到伞翼制动器的策略,而在基于规则的方法中采用矢量场制导律,将每个危险视为排斥源。然后,本文介绍了设计这两种方法的经验等价性及其区别。在多个测试用例中进行的数值实验验证了强化学习方法,并对其结果轨迹进行了比较。强调了数据驱动方法的结果策略的有趣行为。
{"title":"Data-Driven Hazard Avoidance Landing of Parafoil: A Deep Reinforcement Learning Approach","authors":"Junwoo Park, Hyochoong Bang","doi":"10.2514/1.i011281","DOIUrl":"https://doi.org/10.2514/1.i011281","url":null,"abstract":"This paper examines a couple of realizations of autonomous landing hazard avoidance technology of parafoil: a reinforcement-learning-based approach and a rule-based approach, advocating the former. Furthermore, comparative advantages and behavioral analogies between the two approaches are presented. In the data-driven approach, a decision process observing only a series of nadir-pointing images is designed without explicit augmentation of vehicle dynamics for the homogeneity of observation data. An agent then learns the hazard avoidance steering law in an end-to-end fashion. On the contrary, the rule-based approach is facilitated via explicit notions of guidance-control hierarchy, vehicle dynamic states, and metric details of ground obstacles. The soft actor–critic method is applied to learn a policy that maps the down-looking images to parafoil brakes, whereas a vector field guidance law is employed in the rule-based approach, considering each hazard as a repulsive source. This paper then presents empirical equivalences in designing both approaches and their distinctions. Numerical experiments in multiple test cases validate the reinforcement learning method and present comparisons between the approaches regarding their resultant trajectories. The interesting behaviors of the resultant policy of the data-driven approach are emphasized.","PeriodicalId":50260,"journal":{"name":"Journal of Aerospace Information Systems","volume":"2 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135935855","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
期刊
Journal of Aerospace Information Systems
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1