Download or read book Optimized Planning for a Multiple Space Debris Removal Mission written by Mikkel Joergensen and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Lower Earth orbits (LEO) have become the residence for a significant number of large space debris, most of which are defunct satellites and rocket upper stages. The said debris jeopardize regular spacecraft operations in LEO and act as sources of smaller debris as a result of collisions and degradation. To mitigate the adverse effects of space debris and to remediate the LEO region, active debris removal (ADR) missions have been proposed. A mission plan for de-orbiting multiple pieces of large space debris is formulated and evaluated. Within this mission plan, low thrust orbital manoeuvres are used to achieve the necessary orbital transfers by considering the trade-offs between fuel mass and mission time. For the proposed mission scenario, the debris re-enters Earth’s atmosphere in an uncontrolled fashion and as such, strategies for minimizing casualty risk as a result of debris re-entry are proposed. To reduce the fuel cost of accurate rendezvous with multiple pieces of space debris, optimized drift orbits for chaser transfers with large changes in right ascension of the ascending node (RAAN) are introduced. Each orbital manoeuvre considered is defined as a minimum-time orbital transfer, using low-thrust propulsion. The formulation and solution for an accurate motion plan is presented to execute multiple debris removal missions, by using point-to-point transfers. The point-to-point transfer is posed as a constrained non-linear optimal control problem. To demonstrate the capabilities of the formulation and the feasibility of the solutions, several sets of debris are introduced with different features. The outcomes are the transfer characteristics for the chaser to achieve the best possible trade-off between time and fuel for the multiple debris removal mission and the control input time histories required to achieve it.The analysis of the debris re-entry stage of the ADR mission vis a vis the parameters of the disposal orbit is also presented. More specifically, the deorbiting part of an ADR mission can be designed such that the parameters of the disposal orbit minimize the casualty risk of large debris re-entry. To analyse re-entry, the Debris Risk Assessment and Mitigation Analysis (DRAMA) software suite, developed by the European Space Agency, is the primary model employed. With respect to release conditions, once the debris is in the disposal orbit, the effect of introducing a small-magnitude impulse onto the debris at the release is studied, consequently showing that the casualty risk factor can be lowered. Furthermore, a high fidelity coupled orbital-attitude propagator is used to analyze the rotational state evolution of the debris between its release in the disposal orbit (at 200 km) and the onset of re-entry (assumed at 125 km altitude). The debris is released with various orientations, and the effects of the attitude state on the re-entry analysis are investigated"--
Download or read book Intelligent Systems written by André Britto and published by Springer Nature. This book was released on 2021-11-27 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: The two-volume set LNAI 13073 and 13074 constitutes the proceedings of the 10th Brazilian Conference on Intelligent Systems, BRACIS 2021, held in São Paolo, Brazil, in November-December 2021. The total of 77 papers presented in these two volumes was carefully reviewed and selected from 192 submissions.The contributions are organized in the following topical sections: Part I: Agent and Multi-Agent Systems, Planning and Reinforcement Learning; Evolutionary Computation, Metaheuristics, Constrains and Search, Combinatorial and Numerical Optimization, Knowledge Representation, Logic and Fuzzy Systems; Machine Learning and Data Mining. Part II: Multidisciplinary Artificial and Computational Intelligence and Applications; Neural Networks, Deep Learning and Computer Vision; Text Mining and Natural Language Processing. Due to the COVID-2019 pandemic, BRACIS 2021 was held as a virtual event.
Download or read book Space Debris written by Heiner Klinkrad and published by Springer Science & Business Media. This book was released on 2006-09-01 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: The future evolution of the debris environment will be forecast on the basis of traffic models and possible hazard mitigation practices. The text shows how large trackable objects will have re-entry pinpointed and predictions made on related risk assessment for possible ground impact. Models will also be described for meteoroids which are also a prevailing risk.
Download or read book Space Debris Cleaning Missions written by Max Cerf and published by . This book was released on 2017 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the 7th China High Resolution Earth Observation Conference CHREOC 2020 written by Liheng Wang and published by Springer Nature. This book was released on 2022-01-11 with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the proceedings of the 7th China High-resolution Earth Observation Conference (CHREOC). The series conference of China High Resolution Earth Observation has become an influential academic event in the earth detection area, attracting more and more top experts and industry users of related fields. The CHREOCs focus on the popular topics including military-civilian integration, the One Belt and One Road project, the transformation of scientific research achievements. They also discuss the new ideas, new technologies, new methods, and new developments. The CHREOCs have effectively promoted high-level institutional mechanisms, technological innovation, and industrial upgrading in the high-resolution earth observation area, and extend the influences of the state-sponsored major projects.
Download or read book Methods and Applications for Modeling and Simulation of Complex Systems written by Fazilah Hassan and published by Springer Nature. This book was released on 2023-10-12 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 22nd Asia Simulation Conference on Methods and Applications for Modeling and Simulation of Complex Systems, AsiaSim 2023, held in Langkawi, Malaysia, during October 25–26, 2023. The 77 full papers included in this book were carefully reviewed and selected from 164 submissions. They were organized in topical sections as follows: Modelling and Simulation, Artificial intelligence, Industry 4.0, Digital Twins Modelling, Simulation and Gaming, Simulation for Engineering, Simulation for Sustainable Development, Simulation in Social Sciences.
Download or read book Characterization and Capture of Space Debris Objects Using Domain Ontology and Optimal Control written by Marko Jankovic and published by . This book was released on 2022 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation provides solutions to the active debris removal (ADR) research domain. More specifically it contributes to the initial mission planning as well as to the close-range rendezvous and capture phase of an ADR mission. The first contribution of the thesis consists out of a domain-ontology specifically developed for ADR with an aim to provide a standardized, machine-interpretable knowledge representation framework. This framework is capable not only of efficiently storing complex information but also inferring the most suited ADR capture method(s) for an object from its minimal set of parameters. The second contribution of the thesis is to provide an optimization-based motion planner of a spacecraft equipped with a manipulator, a space robot. The purpose of the planner is to to facilitate an autonomous capture of an uncooperative, rapidly tumbling target by means of a space robot. This is achieved by taking the advantage of the particular dynamics of the space robot and an appropriate partial attitude synchronization strategy.
Download or read book Proceedings of the 6th China High Resolution Earth Observation Conference CHREOC 2019 written by Liheng Wang and published by Springer Nature. This book was released on 2020-06-25 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers the proceedings of the 6th China High Resolution Earth Observation Conference (CHREOC). Since its inception, the conference series has become an influential academic event in the earth detection area and attracted more and more top experts and industry practitioners in related fields. CHREOC chiefly focuses on popular topics including military-civilian integration, the One Belt and One Road initiative, and the transformation of scientific research achievements, while also discussing new ideas, new technologies, new methods, and new developments. The CHREOC conferences have effectively promoted high-level institutional mechanisms, technological innovation, and industrial upgrading in the high-resolution earth observation area, and sparked new interest in the major national-sponsored project CHREOS. The majority of the contributing authors are researchers and experts participating in the CHREOS project. The papers highlight new findings, technical innovations, and research directions in the field of high-resolution earth observation. All articles have undergone several rounds of expert review and reflect cutting-edge advances. Accordingly, the proceedings offer an informative and valuable resource for both academic research and engineering practice.
Download or read book Wireless and Satellite Systems written by Qihui Wu and published by Springer Nature. This book was released on 2021-02-27 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: This two-volume set LNICST 357-358 constitutes the post-conference proceedings of the 11th EAI International Conference on Wireless and Satellite Services, WiSATS 2020, held in Nanjing, China, in September 2020. The 91 full papers and workshop papers were carefully reviewed and selected from 200 submissions. Part I - LNICST 357 - details original research and results of wireless and satellite technology for a smarter global communication architecture. The theme of WISATS 2020 is “Intelligent Wireless and Satellite Communications for Beyond 5G”. Part II – LNICST 358 - presents 6 workshop papers: High Speed Space Communication and Space Information Networks (HSSCSIN); Integrated Space and Onboard Networks (ISON); Intelligent Satellite Operations, Managements, and Applications (ISOMA); Intelligent Satellites in Future Space Networked System (ISFSNS); Satellite Communications, Networking and Applications (SCNA); Satellite Internet of Things; Trusted Data Sharing, Secure Communication (SIOTTDSSC).
Download or read book An Introduction to the Mathematics and Methods of Astrodynamics written by Richard H. Battin and published by AIAA. This book was released on 1999 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling and Optimization in Space Engineering written by Giorgio Fasano and published by Springer. This book was released on 2019-05-10 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents advanced case studies that address a range of important issues arising in space engineering. An overview of challenging operational scenarios is presented, with an in-depth exposition of related mathematical modeling, algorithmic and numerical solution aspects. The model development and optimization approaches discussed in the book can be extended also towards other application areas. The topics discussed illustrate current research trends and challenges in space engineering as summarized by the following list: • Next Generation Gravity Missions • Continuous-Thrust Trajectories by Evolutionary Neurocontrol • Nonparametric Importance Sampling for Launcher Stage Fallout • Dynamic System Control Dispatch • Optimal Launch Date of Interplanetary Missions • Optimal Topological Design • Evidence-Based Robust Optimization • Interplanetary Trajectory Design by Machine Learning • Real-Time Optimal Control • Optimal Finite Thrust Orbital Transfers • Planning and Scheduling of Multiple Satellite Missions • Trajectory Performance Analysis • Ascent Trajectory and Guidance Optimization • Small Satellite Attitude Determination and Control • Optimized Packings in Space Engineering • Time-Optimal Transfers of All-Electric GEO Satellites Researchers working on space engineering applications will find this work a valuable, practical source of information. Academics, graduate and post-graduate students working in aerospace, engineering, applied mathematics, operations research, and optimal control will find useful information regarding model development and solution techniques, in conjunction with real-world applications.
Download or read book Automated Rendezvous and Docking of Spacecraft written by Wigbert Fehse and published by Cambridge University Press. This book was released on 2003-11-13 with total page 517 pages. Available in PDF, EPUB and Kindle. Book excerpt: The definitive reference for space engineers on rendezvous and docking/berthing (RVD/B) related issues, this book answers key questions such as: How does the docking vehicle accurately approach the target spacecraft? What technology is needed aboard the spacecraft to perform automatic rendezvous and docking, and what systems are required by ground control to supervise this process? How can the proper functioning of all rendezvous-related equipment, systems and operations be verified before launch? The book provides an overview of the major issues governing approach and mating strategies, and system concepts for rendezvous and docking/berthing. These issues are described and explained such that aerospace engineers, students and even newcomers to the field can acquire a basic understanding of RVD/B. The author would like to extend his thanks to Dr Shufan Wu, GNC specialist and translator of the book's Chinese edition, for his help in the compilation of these important errata.
Download or read book Space Security and Legal Aspects of Active Debris Removal written by Annette Froehlich and published by Springer. This book was released on 2018-11-27 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book analyzes the various legal and political concepts to resolve the problem of the existing space debris in outer space and which measures have been taken to avoid space debris or to reduce potential space debris in the course of future space missions. From a scientific and technical point of view various studies are ongoing to analyze the feasibility of active debris removal. Nevertheless it has to be highlighted that outer space is an international area where various actors with different legal and political concepts are operating, a situation that leads to different approaches concerning such activities.
Download or read book Study of Optimization Methods for Space Debris Removal in Low Earth Orbits written by Ehsan Sadegui and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The develpment of the Master Thesis will include the following tasks:1- Brief review of policies and regulations of Inter-Agency Space Debris Coordination Committee. 2- Study of Orbital Debris Measurements such as ground based radars, optical based telescopes and space-basedtelescopes.3- Study and discussion of the methods for mitigation and remediation of space debris to reduce the risk to the current fleet spacecrafts 4- Study and developement of Debris Removal optimization models to find the optimal trajectory that minimizes fuel consumption. 5 - Generation and developement of optimization algorithmes for Traveling Salesman Problem (TSP) for active space debris removal.
Download or read book Space Debris Peril written by Matteo Madi and published by CRC Press. This book was released on 2020-11-10 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book provides up-to-date knowledge of space debris and valuable insights on how to grapple with this issue from legal, technical, economical and societal aspects. I would strongly recommend that everyone who is working on space development and utilizations and even non-specialists once read this book and think over how human being should be faced with this issue." –Prof. Shinichi Nakasuka, University of Tokyo, Japan Space Debris Peril: Pathways to Opportunities takes readers through the wide spectrum of problems created by space debris – including technical, political, legal and socio-economical aspects – and suggests ways to mitigate its negative consequences and create new opportunities. With chapter contributions from authors at world-renowned universities, private or public entities, and research institutes active in the field of space debris mitigation, space policy and law, risk and resilience, liability and insurance, this book provides a comprehensive introduction to the subject helping the reader to grasp the whole picture of the current space debris remediation challenges. This book will be of interest to the scientific communities, policy makers, business developers, (re)insurers and international standards developers for space operations and orbital debris mitigation. Also, it should appeal to a broader audience among non-specialists in various sectors and the general public. Key features: Brings together interdisciplinary perspectives on the topic in one, cohesive book Chapter contributions from specialists in this interdisciplinary field from around the globe Up-to-date information with the latest developments
Download or read book Spatial Grasp as a Model for Space based Control and Management Systems written by Peter Simon Sapaty and published by CRC Press. This book was released on 2022-06-23 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: Governmental agencies and private companies of different countries are actively moving into space around Earth with the aim to provide smart communication and industry, security, and defense solutions. This often involves massive launches of small, cheap satellites in low earth orbits, which is also contributing to the growth of space debris. The book offers a high-level holistic system philosophy, model, and technology that can effectively organize distributed space-based systems, starting with their planning, creation, and growth. The Spatial Grasp Technology described in the book, based on parallel navigation and pattern-matching of distributed environments with high-level recursive mobile code, can effectively provide any networking protocols and important system applications, by integrating and tasking available terrestrial and celestial equipment. This book contains practical examples of technology-based solutions for tracing hypersonic gliders, continuing observation of certain objects and infrastructures on Earth from space, space-based command and control of large distributed systems, as well as collective removal of increasing amounts of space junk. Earlier versions of this technology were prototyped and used in different countries, with the current version capable of being quickly implemented in traditional industrial or even university environments. This book is oriented toward system scientists, application programmers, industry managers, and university students interested in advanced MSc and PhD projects related to space conquest and distributed system management. Dr Peter Simon Sapaty, Chief Research Scientist, Ukrainian Academy of Sciences, has worked with networked systems for five decades. Outside of Ukraine, he has worked in the former Czechoslovakia (now Czech Republic and Slovakia), Germany, the UK, Canada, and Japan as a group leader, Alexander von Humboldt researcher, and invited and visiting professor. He launched and chaired the Special Interest Group (SIG) on Mobile Cooperative Technologies in Distributed Interactive Simulation project in the United States, and invented a distributed control technology that resulted in a European patent and books with Wiley, Springer, and Emerald. He has published more than 250 papers on distributed systems and has been included in the Marquis Who’s Who in the World and Cambridge Outstanding Intellectuals of the 21st Century. Peter also works with several international scientific journals.
Download or read book Capturing Orbital Debris a Modular Mission Architecture and Optimization written by Eric Woeppel and published by . This book was released on 2015 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
