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An Efficient And Robust Singular Value Method For Star Pattern Recognition And Attitude Determination
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Book Synopsis An Efficient and Robust Singular Value Method for Star Pattern Recognition and Attitude Determination by : Jer-Nan Juang
Download or read book An Efficient and Robust Singular Value Method for Star Pattern Recognition and Attitude Determination written by Jer-Nan Juang and published by . This book was released on 2003 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Star Identification by : Guangjun Zhang
Download or read book Star Identification written by Guangjun Zhang and published by Springer. This book was released on 2016-12-23 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes the research advances in star identification that the author’s team has made over the past 10 years, systematically introducing the principles of star identification, general methods, key techniques and practicable algorithms. It also offers examples of hardware implementation and performance evaluation for the star identification algorithms. Star identification is the key step for celestial navigation and greatly improves the performance of star sensors, and as such the book include the fundamentals of star sensors and celestial navigation, the processing of the star catalog and star images, star identification using modified triangle algorithms, star identification using star patterns and using neural networks, rapid star tracking using star matching between adjacent frames, as well as implementation hardware and using performance tests for star identification. It is not only valuable as a reference book for star sensor designers and researchers working in pattern recognition and other related research fields, but also as teaching resource for senior postgraduate and graduate students majoring in information processing, computer science, artificial intelligence, aeronautics and astronautics, automation and instrumentation. Dr. Guangjun Zhang is a professor at the School of Instrumentation Science and Opto-electronics Engineering, Beihang University, China and also the Vice President of Beihang University, China
Book Synopsis Computer Recognition Systems 4 by : Robert Burduk
Download or read book Computer Recognition Systems 4 written by Robert Burduk and published by Springer Science & Business Media. This book was released on 2011-04-21 with total page 761 pages. Available in PDF, EPUB and Kindle. Book excerpt: The computer recognition systems are nowadays one of the most promising directions in artificial intelligence. This book is the most comprehensive study of this field. It contains a collection of 78 carefully selected articles contributed by experts of pattern recognition. It reports on current research with respect to both methodology and applications. In particular, it includes the following sections: Biometrics, Features, learning and classifiers, Image processing and computer vision, Knowledge acquisition based on reasoning methods Medical applications, Miscellaneous applications, This book is a great reference tool for scientists who deal with the problems of designing computer pattern recognition systems. Its target readers can be as well researchers as students of computer science, artificial intelligence or robotics.
Book Synopsis Spacecraft Modeling, Attitude Determination, and Control by : Yaguang Yang
Download or read book Spacecraft Modeling, Attitude Determination, and Control written by Yaguang Yang and published by CRC Press. This book was released on 2019-02-06 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses all spacecraft attitude control-related topics: spacecraft (including attitude measurements, actuator, and disturbance torques), modeling, spacecraft attitude determination and estimation, and spacecraft attitude controls. Unlike other books addressing these topics, this book focuses on quaternion-based methods because of its many merits. The book lays a brief, but necessary background on rotation sequence representations and frequently used reference frames that form the foundation of spacecraft attitude description. It then discusses the fundamentals of attitude determination using vector measurements, various efficient (including very recently developed) attitude determination algorithms, and the instruments and methods of popular vector measurements. With available attitude measurements, attitude control designs for inertial point and nadir pointing are presented in terms of required torques which are independent of actuators in use. Given the required control torques, some actuators are not able to generate the accurate control torques, therefore, spacecraft attitude control design methods with achievable torques for these actuators (for example, magnetic torque bars and control moment gyros) are provided. Some rigorous controllability results are provided. The book also includes attitude control in some special maneuvers, such as orbital-raising, docking and rendezvous, that are normally not discussed in similar books. Almost all design methods are based on state-spaced modern control approaches, such as linear quadratic optimal control, robust pole assignment control, model predictive control, and gain scheduling control. Applications of these methods to spacecraft attitude control problems are provided. Appendices are provided for readers who are not familiar with these topics.
Book Synopsis Indexing of Crystal Diffraction Patterns by : Adam Morawiec
Download or read book Indexing of Crystal Diffraction Patterns written by Adam Morawiec and published by Springer Nature. This book was released on 2022-09-28 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a detailed, self-contained description of automatic indexing of crystal diffraction patterns, considering both ab initio indexing and indexing of patterns originating from known structures. Introductory chapters equip the reader with the necessary basic knowledge of geometric crystallography, as well as kinematic and dynamic theories of crystal diffraction. Subsequent chapters delve and describe ab initio indexing of single crystal diffraction patterns and indexing of patterns for orientation determination. The book also reviews methods of indexing powder diffraction and electron spot-type patterns, as well the subject of multigrain indexing. Later chapters are devoted to diffraction by helical structures and quasicrystals, as well as some aspects of lattice parameter refinement and strain determination. The book is intended equally for materials scientists curious about ‘nuts and bolts’ of diffraction pattern indexing and orientation mapping systems, as well as interdisciplinary researchers from physics, chemistry, and biology involved in crystallographic computing. It provides a rigorous, yet accessible, treatment of the subject matter for graduate students interested in understanding the functioning of diffraction pattern indexing engines.
Download or read book MIPPR 2005 written by and published by . This book was released on 2005 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Optimization of a Star Pattern Recognition Algorithm for an Intelligent Star Tracker Using a Multi-objective Genetic Algorithm by : Ampem Ebenezer Seisie-Amoasi
Download or read book Optimization of a Star Pattern Recognition Algorithm for an Intelligent Star Tracker Using a Multi-objective Genetic Algorithm written by Ampem Ebenezer Seisie-Amoasi and published by . This book was released on 2004 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: Attitude determination for a spacecraft using a star tracker is required to be fast, reliable, robust, and autonomous. This translates into requiring simple algorithms, which reduces the requirement of power and weight. To optimize a Star Pattern Recognition Algorithm (SPRA) using a real star map designed for such a purpose requires optimization of the genetic operators that constitute the SPRA. In addition, one requires a multi-objective genetic algorithm to optimize the SPRA control parameters. For this work, a multi-map scheme, combined with rolling dynamics, was employed. The developed Generation Adaptive Candidate (GAC) range mutability operation uses concurrent genotypic evolution rather than evolution history. Using a meta-level genetic algorithm employing a Double Objective Transition (DOT) selection scheme, a pareto solution set is evolved from which the optimal control parameters for the SPRA are determined. A 0.5 population elements ratio rule is observed to ensure effective balance between population exploitation and exploration. This rule leads to effective solutions on all the optimization objectives concurrently. With a minimum field of view of 20°, the optimized SPRA achieves an accuracy level of about 22±11 arc-second on the average at 99% precision and 100% recognition.
Book Synopsis Intelligent Star Pattern Recognition Techniques for Attitude Determination by : Lalitha Paladugu
Download or read book Intelligent Star Pattern Recognition Techniques for Attitude Determination written by Lalitha Paladugu and published by . This book was released on 2004 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 974 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fundamentals of Spacecraft Attitude Determination and Control by : F. Landis Markley
Download or read book Fundamentals of Spacecraft Attitude Determination and Control written by F. Landis Markley and published by Springer. This book was released on 2014-05-31 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores topics that are central to the field of spacecraft attitude determination and control. The authors provide rigorous theoretical derivations of significant algorithms accompanied by a generous amount of qualitative discussions of the subject matter. The book documents the development of the important concepts and methods in a manner accessible to practicing engineers, graduate-level engineering students and applied mathematicians. It includes detailed examples from actual mission designs to help ease the transition from theory to practice and also provides prototype algorithms that are readily available on the author’s website. Subject matter includes both theoretical derivations and practical implementation of spacecraft attitude determination and control systems. It provides detailed derivations for attitude kinematics and dynamics and provides detailed description of the most widely used attitude parameterization, the quaternion. This title also provides a thorough treatise of attitude dynamics including Jacobian elliptical functions. It is the first known book to provide detailed derivations and explanations of state attitude determination and gives readers real-world examples from actual working spacecraft missions. The subject matter is chosen to fill the void of existing textbooks and treatises, especially in state and dynamics attitude determination. MATLAB code of all examples will be provided through an external website.
Book Synopsis Bulletin of the Atomic Scientists by :
Download or read book Bulletin of the Atomic Scientists written by and published by . This book was released on 1973-10 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bulletin of the Atomic Scientists is the premier public resource on scientific and technological developments that impact global security. Founded by Manhattan Project Scientists, the Bulletin's iconic "Doomsday Clock" stimulates solutions for a safer world.
Book Synopsis Automatic Control in Aerospace 1992 by : D.B. DeBra
Download or read book Automatic Control in Aerospace 1992 written by D.B. DeBra and published by Elsevier. This book was released on 2017-01-11 with total page 573 pages. Available in PDF, EPUB and Kindle. Book excerpt: Space vehicles have become increasingly complex in recent years, and the number of missions has multiplied as a result of extending frontiers in the exploration of our planetary system and the universe beyond. The advancement of automatic control in aerospace reflects these developments. Key areas covered in these proceedings include: the size and complexity of spacecrafts and the increasingly stringent performance requirements to be fulfilled in a harsh and unpredictable environment; the merger of space vehicles and airplanes into space planes to launch and retrieve payloads by reusable winged vehicles; and the demand to increase space automation and autonomy to reduce human involvement as much as possible in manned, man-tended and unmanned missions. This volume covers not only the newly evolving key technologies but also the classical issues of guidance, navigation and control.
Book Synopsis Bulletin of the Atomic Scientists by :
Download or read book Bulletin of the Atomic Scientists written by and published by . This book was released on 1969-02 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bulletin of the Atomic Scientists is the premier public resource on scientific and technological developments that impact global security. Founded by Manhattan Project Scientists, the Bulletin's iconic "Doomsday Clock" stimulates solutions for a safer world.
Book Synopsis Bulletin of the Atomic Scientists by :
Download or read book Bulletin of the Atomic Scientists written by and published by . This book was released on 1959-02 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bulletin of the Atomic Scientists is the premier public resource on scientific and technological developments that impact global security. Founded by Manhattan Project Scientists, the Bulletin's iconic "Doomsday Clock" stimulates solutions for a safer world.
Download or read book NASA Tech Briefs written by and published by . This book was released on 2004 with total page 1000 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bulletin of the Atomic Scientists by :
Download or read book Bulletin of the Atomic Scientists written by and published by . This book was released on 1961-05 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bulletin of the Atomic Scientists is the premier public resource on scientific and technological developments that impact global security. Founded by Manhattan Project Scientists, the Bulletin's iconic "Doomsday Clock" stimulates solutions for a safer world.
