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Author : Gwanghyeok Ju
Publisher :
ISBN 13 :
Total Pages : 398 pages
Book Rating : 4.:/5 (489 download)
Download or read book Autonomous Star Sensing, Pattern Identification, and Attitude Determination for Spacecraft written by Gwanghyeok Ju and published by . This book was released on 2001 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download Autonomous Star Sensing and Pattern Recognition for Spacecraft Attitude Determination [microform] PDF Online Free](https://books.google.com/books/content/images/frontcover/VKyDuQAACAAJ?fife=w200-h370)
Author : David Stephen Anderson
Publisher : Ann Arbor, Mich. : University Microfilms International
ISBN 13 :
Total Pages : 482 pages
Book Rating : 4.:/5 (253 download)
Download or read book Autonomous Star Sensing and Pattern Recognition for Spacecraft Attitude Determination [microform] written by David Stephen Anderson and published by Ann Arbor, Mich. : University Microfilms International. This book was released on 1991 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Norman M. Hatcher
Publisher :
ISBN 13 :
Total Pages : 26 pages
Book Rating : 4.:/5 (317 download)
Download or read book A Survey of Attitude Sensors for Spacecraft written by Norman M. Hatcher and published by . This book was released on 1967 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Malak Anees Samaan
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (544 download)
Download or read book Toward Faster and More Accurate Star Sensors Using Recursive Centroiding and Star Identification written by Malak Anees Samaan and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this research is to study different novel developed techniques for spacecraft attitude determination methods using star tracker sensors. This dissertation addresses various issues on developing improved star tracker software, presents new approaches for better performance of star trackers, and considers applications to realize high precision attitude estimates. Star-sensors are often included in a spacecraft attitude-system instrument suite, where high accuracy pointing capability is required. Novel methods for image processing, camera parameters ground calibration, autonomous star pattern recognition, and recursive star identification are researched and implemented to achieve high accuracy and a high frame rate star tracker that can be used for many space missions. This dissertation presents the methods and algorithms implemented for the one Field of View 'FOV' StarNavI sensor that was tested aboard the STS-107 mission in spring 2003 and the two fields of view StarNavII sensor for the EO-3 spacecraft scheduled for launch in 2007. The results of this research enable advances in spacecraft attitude determination based upon real time star sensing and pattern recognition. Building upon recent developments in image processing, pattern recognition algorithms, focal plane detectors, electro-optics, and microprocessors, the star tracker concept utilized in this research has the following key objectives for spacecraft of the future: lower cost, lower mass and smaller volume, increased robustness to environment-induced aging and instrument response variations, increased adaptability and autonomy via recursive self-calibration and health-monitoring on-orbit. Many of these attributes are consequences of improved algorithms that are derived in this dissertation.
Author : Loic Jean Chiquillo
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (535 download)
Download or read book A new star identification algorithm for autonomous spacecraft attitude determination written by Loic Jean Chiquillo and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Aaron James Trask
Publisher :
ISBN 13 :
Total Pages : 166 pages
Book Rating : 4.:/5 (518 download)
Download or read book Autonomous Artificial Neural Network Star Tracker for Spacecraft Attitude Determination written by Aaron James Trask and published by . This book was released on 2002 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J.R. Wertz
Publisher : Springer Science & Business Media
ISBN 13 : 9400999070
Total Pages : 877 pages
Book Rating : 4.4/5 (9 download)
Download or read book Spacecraft Attitude Determination and Control written by J.R. Wertz and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 877 pages. Available in PDF, EPUB and Kindle. Book excerpt: Roger D. Werking Head, Attitude Determination and Control Section National Aeronautics and Space Administration/ Goddard Space Flight Center Extensiye work has been done for many years in the areas of attitude determination, attitude prediction, and attitude control. During this time, it has been difficult to obtain reference material that provided a comprehensive overview of attitude support activities. This lack of reference material has made it difficult for those not intimately involved in attitude functions to become acquainted with the ideas and activities which are essential to understanding the various aspects of spacecraft attitude support. As a result, I felt the need for a document which could be used by a variety of persons to obtain an understanding of the work which has been done in support of spacecraft attitude objectives. It is believed that this book, prepared by the Computer Sciences Corporation under the able direction of Dr. James Wertz, provides this type of reference. This book can serve as a reference for individuals involved in mission planning, attitude determination, and attitude dynamics; an introductory textbook for stu dents and professionals starting in this field; an information source for experimen ters or others involved in spacecraft-related work who need information on spacecraft orientation and how it is determined, but who have neither the time nor the resources to pursue the varied literature on this subject; and a tool for encouraging those who could expand this discipline to do so, because much remains to be done to satisfy future needs.
Author : Jer-Nan Juang
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (317 download)
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:
Author : John L. Junkins
Publisher :
ISBN 13 :
Total Pages : 59 pages
Book Rating : 4.:/5 (122 download)
Download or read book Star Pattern Recognition and Spacecraft Attitude Determination written by John L. Junkins and published by . This book was released on 1978 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the research activities described in this document is to research and develop a system for on-board attitude determination for satellites, achieving sub-five arc-second accuracy when such a system is interfaced with a general purpose star tracker (typical of several existing configurations). The primary motivation for this research is the exploitation of recently developed light sensitive Charge-Doupled-Devices (CCD) in the focal plane of a tracker lens. The CCD will act as a 'film' for imaging starlight and from which the attitude can be determined. The attitude determination can be performed on-board with a high degree of accuracy and high speed. A typical CCD for this application consists of about 200,000 light-sensitive elements or pixels, accurately imbedded (to 1 part in 10,000) in a microcircuit chip. The CCD can be scanned electronically and the voltage response of illuminated pixels digitized for processing by a microcomputer; corrections can be applied for image distortion based upon apriori calibration. (Author).
Author :
Publisher :
ISBN 13 :
Total Pages : 66 pages
Book Rating : 4.:/5 (227 download)
Download or read book Star Pattern Recognition and Spacecraft Attitude Determination written by and published by . This book was released on 1978 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the research activities described in this document is to research and develop a system for on-board attitude determination for satellites, achieving sub-five arc-second accuracy when such a system is interfaced with a general purpose star tracker (typical of several existing configurations). The primary motivation for this research is the exploitation of recently developed light sensitive Charge-Doupled-Devices (CCD) in the focal plane of a tracker lens. The CCD will act as a 'film' for imaging starlight and from which the attitude can be determined. The attitude determination can be performed on-board with a high degree of accuracy and high speed. A typical CCD for this application consists of about 200,000 light-sensitive elements or pixels, accurately imbedded (to 1 part in 10,000) in a microcircuit chip. The CCD can be scanned electronically and the voltage response of illuminated pixels digitized for processing by a microcomputer; corrections can be applied for image distortion based upon apriori calibration. (Author).
Author : John L. Junkins
Publisher :
ISBN 13 :
Total Pages : 66 pages
Book Rating : 4.:/5 (227 download)
Download or read book Star Pattern Recognition and Spacecraft Attitude Determination written by John L. Junkins and published by . This book was released on 1978 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the research activities described in this document is to research and develop a system for on-board attitude determination for satellites, achieving sub-five arc-second accuracy when such a system is interfaced with a general purpose star tracker (typical of several existing configurations). The primary motivation for this research is the exploitation of recently developed light sensitive Charge-Doupled-Devices (CCD) in the focal plane of a tracker lens. The CCD will act as a 'film' for imaging starlight and from which the attitude can be determined. The attitude determination can be performed on-board with a high degree of accuracy and high speed. A typical CCD for this application consists of about 200,000 light-sensitive elements or pixels, accurately imbedded (to 1 part in 10,000) in a microcircuit chip. The CCD can be scanned electronically and the voltage response of illuminated pixels digitized for processing by a microcomputer; corrections can be applied for image distortion based upon apriori calibration. (Author).
Author : Bulbul Mukherjee
Publisher : Meem Publishers
ISBN 13 : 9783155314628
Total Pages : 0 pages
Book Rating : 4.3/5 (146 download)
Download or read book Satellite Attitude Determination Planetary Landmarks written by Bulbul Mukherjee and published by Meem Publishers. This book was released on 2023-07-21 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Satellite Attitude Determination with Planetary Landmarks is a crucial aspect of space missions and Earth observation endeavors. It involves the precise determination of a satellite's orientation and position in space relative to identifiable features on planetary surfaces, such as landmarks or geographical points on planets or moons. The process of satellite attitude determination relies on various technologies and methodologies. Attitude sensors, such as gyroscopes and star trackers, provide essential data on the spacecraft's orientation in relation to celestial reference frames. Inertial Measurement Units (IMUs) are often used to measure the spacecraft's accelerations and rotations. Additionally, Global Navigation Satellite Systems (GNSS) can assist in the positioning of the satellite. The use of planetary landmarks plays a vital role in this determination process. By comparing the observed features on the planetary surface with known ephemeris data and image processing techniques, the satellite's orientation can be accurately estimated. Image matching algorithms and computer vision techniques are employed to identify and track these landmarks from the satellite's onboard cameras, enabling a continuous update of its position and orientation. The fusion of data from various sensors, such as the IMU and star trackers, enhances the accuracy and robustness of the satellite's attitude determination. Machine learning algorithms may be incorporated to further refine and optimize the estimation process based on past data and learned patterns. Satellite Attitude Determination with Planetary Landmarks finds applications in numerous fields, including Earth observation missions, planetary exploration, environmental monitoring, climate studies, and even space missions to other celestial bodies. Accurate knowledge of a satellite's attitude is essential for successful spacecraft navigation, instrument pointing, and data acquisition, enabling scientists and researchers to gather valuable data and images from space with precision and efficiency. Furthermore, this technique contributes to autonomous spacecraft operations, allowing the satellite to adapt and adjust its attitude in real-time, ensuring optimal performance and mission success even in dynamic and challenging space environments. As technology advances, the utilization of planetary landmarks for satellite attitude determination continues to evolve, promising increasingly accurate and reliable results for future space missions and scientific endeavors.
Author : T. M. Walsh
Publisher :
ISBN 13 :
Total Pages : 50 pages
Book Rating : 4.:/5 (31 download)
Download or read book A Celestial Attitude Measurement Instrument for Project Scanner written by T. M. Walsh and published by . This book was released on 1968 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John V Taylor (IV.)
Publisher :
ISBN 13 :
Total Pages : 152 pages
Book Rating : 4.:/5 (227 download)
Download or read book Star Sensor Fine Attitude Pointing Model for a Spinning Geosynchronous Satellite written by John V Taylor (IV.) and published by . This book was released on 1986 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: A fine attitude determination model is developed for a spinning geosynchronous satellite, based upon stellar observations from a V-slit star scanner and ground supplied satellite ephemerides. A true attitude model is determined through numerical integration of Euler's moment equations for a torque-free, rigid, axisymmetric body, and kinematic relations which consist of pitch, roll, yaw, orientation angles. Next, the closed form solutions to the Euler equations are coupled with first-order approximate solutions of the kinematic relations to develop a second order kinematics model. Observation relations, relating stellar slit-plane crossing times, (a priori star identification assumed), to attitude states, are then developed. Finally, a nonlinear least-squares estimation algorithm is used to identify the full satellite attitude state. Simulation is tested for single scan and multiple-scan capability using exact and noise ridden data. Keywords: satellite attitude determination; star sensors; star trackers; autonomous spacecraft navigation. (Theses).
Author : Guangjun Zhang
Publisher : Springer
ISBN 13 : 3662537834
Total Pages : 231 pages
Book Rating : 4.6/5 (625 download)
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
Author : L Chiquiilo
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (535 download)
Download or read book A New Star Identification Algorithm for Autonomous Spacecraft Attitiude Determination written by L Chiquiilo and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael Paluszek
Publisher : Elsevier
ISBN 13 : 0323999158
Total Pages : 738 pages
Book Rating : 4.3/5 (239 download)
Download or read book ADCS - Spacecraft Attitude Determination and Control written by Michael Paluszek and published by Elsevier. This book was released on 2023-02-15 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt: ADCS - Spacecraft Attitude Determination and Control Systems, provides a complete introduction to spacecraft control. The book covers all elements of attitude control system design including kinematics, dynamics, orbits, disturbances, actuators, sensors and mission operations. Essential hardware details are provided for star cameras, reaction wheels, sun sensors and other key components. The book is organized with the chapters in order of how to design a control system for a spacecraft. Background material such as on control theory, actuator and sensor details and probability and statistics are located in appendices. Examples are drawn from the author's 40 years of industrial experience with spacecraft such as GGS, GPS IIR, Mars Observer and commercial communications satellites. The book includes historical background and real-life examples. Numerous complete spacecraft control system designs are presented including systems specifically for CubeSats and nano-satellites. Cutting edge material in machine learning is also included. Features critical details on hardware and the space environment Combines theory and ready to implement practical algorithms Includes MATLAB code for all of the examples All plots and figures are generated with the included code
