Development of Novel Satellite Attitude Determination and Control Algorithms Based on Telemetry Data from an Earth Satellite

Download Development of Novel Satellite Attitude Determination and Control Algorithms Based on Telemetry Data from an Earth Satellite PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (463 download)

DOWNLOAD NOW!


Book Synopsis Development of Novel Satellite Attitude Determination and Control Algorithms Based on Telemetry Data from an Earth Satellite by : Narendra Gollu

Download or read book Development of Novel Satellite Attitude Determination and Control Algorithms Based on Telemetry Data from an Earth Satellite written by Narendra Gollu and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: All spacecraft missions require accurate knowledge of attitude, which is derived from on-board sensors using attitude determination algorithms. The increasing demands for attitude accuracy, high performance and low cost spacecraft are driving designers to change from available attitude determination methods to those that are more robust and accurate. However, the cost, the processor workload and the time-constraints in spacecraft development and deployment projects curtail the opportunity for developing new on-board attitude determination methods, especially with regards to the development of more precise sensors. Therefore, it is always desired to achieve the required attitude accuracy with the existing set of on-board sensors, but using effective attitude determination methods and sensor fusion algorithms. Developing such algorithms starts on the ground and is subject to verification and tuning with real experimental data from telemetry. Moreover, the on-ground mission control center has to evaluate the attitude accuracy, calibrate sensors and performance. Motivated by these needs, the main objective of this thesis is to develop novel attitude determination algorithms combining several sensors and attitude estimation methods for Ground-Based Attitude Estimation (GBAE) with telemetry data. The GBAE formulation will be based on a guaranteed ellipsoidal state estimation for acquisition mode and a modified Kalman filter for pointing mode, to provide optimal attitude estimates of the spacecraft. The GBAE has to be evaluated both in the simulation environment and in the flight environment. In the simulation environment, the evaluation of the GBAE rests on the availability of an accurate dynamical model for the spacecraft. However, spacecraft dynamics are complex with multiple modes of operation. Moreover, the nonlinearities in the actual system make the spacecraft dynamics more complex. This motivates the use of switching between a global nonlinear controller for acquisition mode and a local linear controller for pointing mode, which can guarantee performance and is less computationally intensive for implementation in an on-board microprocessor. In this thesis, novel attitude determination and control algorithms are evaluated in the flight environment for a case study in collaboration with the Canadian Space Agency for the SCISAT-1 satellite.

Fundamentals of Spacecraft Attitude Determination and Control

Download Fundamentals of Spacecraft Attitude Determination and Control PDF Online Free

Author :
Publisher : Springer
ISBN 13 : 1493908022
Total Pages : 486 pages
Book Rating : 4.4/5 (939 download)

DOWNLOAD NOW!


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.

A flexible attitude control system for three-axis stabilized nanosatellites

Download A flexible attitude control system for three-axis stabilized nanosatellites PDF Online Free

Author :
Publisher : Universitätsverlag der TU Berlin
ISBN 13 : 3798329680
Total Pages : 197 pages
Book Rating : 4.7/5 (983 download)

DOWNLOAD NOW!


Book Synopsis A flexible attitude control system for three-axis stabilized nanosatellites by : Gordon, Karsten

Download or read book A flexible attitude control system for three-axis stabilized nanosatellites written by Gordon, Karsten and published by Universitätsverlag der TU Berlin. This book was released on 2018-03-15 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis investigates a new concept for the flexible design and verification of an ADCS for a nanosatellite platform. In order to investigate guidelines for the design of a flexible ADCS, observations of the satellite market and missions are recorded. Following these observations, the author formulates design criteria which serve as a reference for the conceptual design of the flexible ADCS. The research of the thesis was carried out during the development of TU Berlin's nanosatellite platform TUBiX20 and its first two missions, TechnoSat and TUBIN. TUBiX20 targets modularity, reuse and dependability as main design goals. Based on the analysis of design criteria for a flexible ADCS, these key design considerations for the TUBiX20 platform were continued for the investigations carried out in this thesis. The resulting concept implements the ADCS as a distributed system of devices complemented by a hardware-independent core application for state determination and control. Drawing on the technique of component-based software engineering, the system is partitioned into self-contained modules which implement unified interfaces. These interfaces specify the state quantity of an input or output but also its unit and coordinate system, complemented by a mathematical symbol for unambiguous documentation. The design and verification process for the TUBiX20 ADCS was also elaborated during the course of this research. The approach targets the gradual development of the subsystem from a purely virtual satellite within a closed-loop simulation to the verification of the fully integrated system on an air-bearing testbed. Finally, the concurrent realization of the investigated concept within the TechnoSat and TUBIN missions is discussed. Starting with the individual ADCS requirements, the scalability of the approach is demonstrated in three stages: from a coarse, but cost- and energy-efficient configuration to realize a technology demonstration mission with moderate requirements (TechnoSat) to a high-performance configuration to support Earth observation missions (TUBIN). Diese Dissertation untersucht ein neues Konzept zur flexiblen Entwicklung und Verifikation eines Lageregelungssystems für eine Nanosatellitenplattform. Als Grundlage für die Erarbeitung eines Leitfadens für die Entwicklung werden zunächst Beobachtung des Satellitenmarkts sowie konkreter Missionen zusammengetragen. Darauf aufbauend formuliert der Autor Entwurfskriterien für die Konzipierung eines flexiblen Lageregelungssystems. Die Dissertation wurde im Rahmen der Entwicklung der TUBiX20 Nanosatellitenplattform und ihrer ersten beiden Missionen, TechnoSat und TUBIN, an der TU Berlin durchgeführt. TUBiX20 verfolgt Modularität, Wiederverwendung und Zuverlässigkeit als Entwicklungsziele. Diese werden unter der Verwendung der vom Autor hergeleiteten Entwurfskriterien in dieser Arbeit im Kontext des Lageregelungssystems verfeinert. Das resultierende Konzept setzt dieses als verteiltes System von Geräten und einem hardware-unabhängigen Software-Kern um. Der Software-Entwurfstechnik Component-based software engineering folgend ist das System in unabhängige Module unterteilt, welche wiederum einheitliche Schnittstellen implementieren. Diese Schnittstellen spezifizieren die Zustandsgrößen für die Ein- und Ausgänge der Module inklusive Einheit, Koordinatensystem und mathematischem Symbol für eine eindeutige Darstellung. Der Entwurfs- und Verifikationsprozess für das TUBiX20 Lageregelungssystem wurde vom Autor im Rahmen der Arbeit untersucht. Hier verfolgt der Ansatz einen schrittweisen übergang von einem virtuellen Satelliten als Simulationsmodell bis hin zur Verifikation des integrierten Systems auf einem Lageregelungsteststand. Abschließend diskutiert die Arbeit die Realisierung des untersuchten Konzepts im Rahmen der Missionen TechnoSat und TUBIN. Beginnend mit den jeweiligen Anforderungen wird die Skalierbarkeit des Ansatzes in drei Stufen demonstriert: von einer groben, aber kosten- und energieeffizienten Konfiguration für eine Technologieerprobungsmission mit moderaten Anforderungen (TechnoSat) bis hin zu einer Konfiguration für hochgenaue Lageregelung als Basis für Erdbeobachtungsmissionen (TUBIN).

Attitude Control Subsystem for the Advanced Communications Technology Satellite

Download Attitude Control Subsystem for the Advanced Communications Technology Satellite PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (317 download)

DOWNLOAD NOW!


Book Synopsis Attitude Control Subsystem for the Advanced Communications Technology Satellite by : Alan W. Hewston

Download or read book Attitude Control Subsystem for the Advanced Communications Technology Satellite written by Alan W. Hewston and published by . This book was released on 1996 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Fault Tolerant Attitude Estimation for Small Satellites

Download Fault Tolerant Attitude Estimation for Small Satellites PDF Online Free

Author :
Publisher : CRC Press
ISBN 13 : 1351248820
Total Pages : 353 pages
Book Rating : 4.3/5 (512 download)

DOWNLOAD NOW!


Book Synopsis Fault Tolerant Attitude Estimation for Small Satellites by : Chingiz Hajiyev

Download or read book Fault Tolerant Attitude Estimation for Small Satellites written by Chingiz Hajiyev and published by CRC Press. This book was released on 2020-12-22 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: Small satellites use commercial off-the-shelf sensors and actuators for attitude determination and control (ADC) to reduce the cost. These sensors and actuators are usually not as robust as the available, more expensive, space-proven equipment. As a result, the ADC system of small satellites is more vulnerable to any fault compared to a system for larger competitors. This book aims to present useful solutions for fault tolerance in ADC systems of small satellites. The contents of the book can be divided into two categories: fault tolerant attitude filtering algorithms for small satellites and sensor calibration methods to compensate the sensor errors. MATLAB® will be used to demonstrate simulations. Presents fault tolerant attitude estimation algorithms for small satellites with an emphasis on algorithms’ practicability and applicability Incorporates fundamental knowledge about the attitude determination methods at large Discusses comprehensive information about attitude sensors for small satellites Reviews calibration algorithms for small satellite magnetometers with simulated examples Supports theory with MATLAB simulation results which can be easily understood by individuals without a comprehensive background in this field Covers up-to-date discussions for small satellite attitude systems design Dr. Chingiz Hajiyev is a professor at the Faculty of Aeronautics and Astronautics, Istanbul Technical University (Istanbul, Turkey). Dr. Halil Ersin Soken is an assistant professor at the Aerospace Engineering Department, Middle East Technical University (Ankara, Turkey).

ADCS - Spacecraft Attitude Determination and Control

Download ADCS - Spacecraft Attitude Determination and Control PDF Online Free

Author :
Publisher : Elsevier
ISBN 13 : 0323985416
Total Pages : 740 pages
Book Rating : 4.3/5 (239 download)

DOWNLOAD NOW!


Book Synopsis ADCS - Spacecraft Attitude Determination and Control by : Michael Paluszek

Download or read book ADCS - Spacecraft Attitude Determination and Control written by Michael Paluszek and published by Elsevier. This book was released on 2023-04-27 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt: ADCS - Spacecraft Attitude Determination and Control 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 explores how to design a control system for a spacecraft, control theory, and actuator and sensor details. 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, and includes historical background and real-life examples. Features critical details on hardware and the space environment Combines theory and ready-to-implement practical algorithms Includes MATLAB code for all examples Provides plots and figures generated with the included code

Development and Analysis of a Small Satellite Attitude Determination and Control System Testbed

Download Development and Analysis of a Small Satellite Attitude Determination and Control System Testbed PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 267 pages
Book Rating : 4.:/5 (758 download)

DOWNLOAD NOW!


Book Synopsis Development and Analysis of a Small Satellite Attitude Determination and Control System Testbed by : Corey Whitcomb Crowell

Download or read book Development and Analysis of a Small Satellite Attitude Determination and Control System Testbed written by Corey Whitcomb Crowell and published by . This book was released on 2011 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: Attitude Determination and Control Systems (ADCS) are critical to the operation of satellites that require attitude knowledge and/or attitude control to achieve mission success. Furthermore, ADCS systems only operate as designed in the reduced friction, micro-gravity environment of space. Simulating these characteristics of space in a laboratory environment in order to test individual ADCS components and integrated ADCS systems is an important but challenging step in verifying and validating a satellite's ADCS design. The purpose of this thesis is to design and develop an ADCS testbed capable of simulating the reduced fiction, micro-gravity environment of space within the Massachusetts Institute of Technology's Space Systems Laboratory. The ADCS testbed is based on a tabletop style, three degree of freedom, rotational air bearing, which uses four reaction wheels for attitude control and a series of sensors for attitude determination. The testbed includes all the equipment necessary to allow for closed loop testing of individual ADCS components and integrated ADCS systems in the simulated inertial environment of space. In addition to the physical ADCS testbed, a MATLAB Simulink based model of the ADCS testbed is developed to predict the performance of hardware components and software algorithms before the components and algorithms are integrated into the ADCS testbed. The final objective of this thesis is to validate the operation of the ADCS testbed and simulation to prepare the tool for use by satellite design teams.

Spacecraft Attitude Determination and Control

Download Spacecraft Attitude Determination and Control PDF Online Free

Author :
Publisher : Springer Science & Business Media
ISBN 13 : 9400999070
Total Pages : 877 pages
Book Rating : 4.4/5 (9 download)

DOWNLOAD NOW!


Book Synopsis Spacecraft Attitude Determination and Control by : J.R. Wertz

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.

Study and Development of Attitude Control and Determination Simulation Software and Control Algorithms for 3Cat-4 Mission

Download Study and Development of Attitude Control and Determination Simulation Software and Control Algorithms for 3Cat-4 Mission PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (122 download)

DOWNLOAD NOW!


Book Synopsis Study and Development of Attitude Control and Determination Simulation Software and Control Algorithms for 3Cat-4 Mission by : Carlos Diez Garcia

Download or read book Study and Development of Attitude Control and Determination Simulation Software and Control Algorithms for 3Cat-4 Mission written by Carlos Diez Garcia and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The AOCS of a spacecraft is the responsible for determining the attitude of the satellite and controlling it to reach a specific pointing state, to alloww the execution of scientific experiments on board. In the case of 3Cat-4 mission, a magnetic control system is used to align the deployable helix antenna with the Nadir vector to perform the GNSS-R and L-band radiometry experiments for Earth Observation. This task is especially complex to perform in nanosatellites due to the limitations of mass, size, and power consumption. To analyze the performance of this subsystem, facilities (Helmholtz coils, TVAC, Sun simulator) are used that try to emulate the environment in which the satellite will operate, but this is not always possible and for this reason this project has been carried out. In this project, a simulation software programmed in MATLAB has been developed to analyze the performance of the AOCS subsystem. This tool has been used to validate the design and verify the compliance with the subsystem requirements, but also to support the design phase. In addition, the simulator has been used to analyze the AOCS of the 3Cat-4 mission developed by the UPC NanoSat Lab. This document explains the physics behind each of the blocks modeled to emulate the space environment, implementing the equations that govern the orbial dynamics and attitude of the satellite and including the disturbance forces that affect a satellite in orbit LEO . In addition, the development of the attitude determination and control system, both of the hardware part (i.e. sensors and actuators) and of the estimation and control algorithms, is presented. In particular, the Optimal-REQUEST algorithm has been implemented and the control laws for the Detumbling and Nadir Pointing Mode modes, corresponding to the 3Cat-4 mission, have been developed. The results of the analysis showthe correct operation of the simulator and the compliance of the subsystem requirements of the 3Cat-4 mission. The control modes meet the objectives defined, i.e. the detumbling mode is capable to stabilize the system and reduce the angular velocity of the CubeSat below 2°/s in less than 24 hours and the Nadir Pointing mode allows to reach the pointing towards Nadir, with a maximum angular deviation of 10° and angular velocity of 0.5°/s in the X and Y axes of the satellite. On the other hand, the results show the great negative impact of the aerodynamic drag, due to the physical characteristics of the CubeSat and the orbit in which it is located, causing the control system to have to be continuously active to compensate for the disturbances and reach the desired attitude state. 2.

Satellite Attitude Control Utilizing the Earth's Magnetic Field

Download Satellite Attitude Control Utilizing the Earth's Magnetic Field PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.:/5 (31 download)

DOWNLOAD NOW!


Book Synopsis Satellite Attitude Control Utilizing the Earth's Magnetic Field by : John S. White (writer on artificial satellites.)

Download or read book Satellite Attitude Control Utilizing the Earth's Magnetic Field written by John S. White (writer on artificial satellites.) and published by . This book was released on 1961 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: The torque developed by the interaction of current-carrying coils with the earth's magnetic field can be used as a means of attitude control. The degree to which the attitude of a vehicle can be maintained utilizing this torque depends on the fluctuations of the magnetic field at the satellite as the satellite orbits about the earth. Due to the nature of the torque developed only two vehicle axes can be c ntinuously controlled simultaneously. With the principle described, either a two- or three-coil system can be used to control vehicle attitude about two axes. Intermittent control about three axes can be obtained. (Author).

Some Notes on Attitude Control of Earth Satellite Vehicles

Download Some Notes on Attitude Control of Earth Satellite Vehicles PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 92 pages
Book Rating : 4.:/5 (317 download)

DOWNLOAD NOW!


Book Synopsis Some Notes on Attitude Control of Earth Satellite Vehicles by : Warren Gillespie

Download or read book Some Notes on Attitude Control of Earth Satellite Vehicles written by Warren Gillespie and published by . This book was released on 1959 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Attitude Stabilization for CubeSat

Download Attitude Stabilization for CubeSat PDF Online Free

Author :
Publisher : Cambridge Scholars Publishing
ISBN 13 : 152752163X
Total Pages : 190 pages
Book Rating : 4.5/5 (275 download)

DOWNLOAD NOW!


Book Synopsis Attitude Stabilization for CubeSat by : Mohammed Chessab Mahdi

Download or read book Attitude Stabilization for CubeSat written by Mohammed Chessab Mahdi and published by Cambridge Scholars Publishing. This book was released on 2018-11-14 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores CubeSat technology, and develops a nonlinear mathematical model of a spacecraft with the assumption that the satellite is a rigid body. It places emphasis on the CubeSat subsystem, orbit dynamics and perturbations, the satellite attitude dynamic and modeling, and components of attitude determination and the control subsystem. The book focuses on the attitude stabilization methods of spacecraft, and presents gravity gradient stabilization, aerodynamic stabilization, and permanent magnets stabilization as passive stabilization methods, and spin stabilization and three axis stabilization as active stabilization methods. It also discusses the need to develop a control system design, and describes the design of three controller configurations, namely the Proportional–Integral–Derivative Controller (PID), the Linear Quadratic Regulator (LQR), and the Fuzzy Logic Controller (FLC) and how they can be used to design the attitude control of CubeSat three-axis stabilization. Furthermore, it presents the design of a suitable attitude stabilization system by combining gravity gradient stabilization with magnetic torquing, and the design of magnetic coils which can be added in order to improve the accuracy of attitude stabilization. The book then investigates, simulates, and compares possible controller configurations that can be used to control the currents of magnetic coils when magnetic coils behave as the actuator of the system.

Attitude Estimation and Control of a Magnetically-actuated Earth-observing Cubesat

Download Attitude Estimation and Control of a Magnetically-actuated Earth-observing Cubesat PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (131 download)

DOWNLOAD NOW!


Book Synopsis Attitude Estimation and Control of a Magnetically-actuated Earth-observing Cubesat by : Corey Miles

Download or read book Attitude Estimation and Control of a Magnetically-actuated Earth-observing Cubesat written by Corey Miles and published by . This book was released on 2022 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Meteorix mission is a nanosatellite demonstration mission dedicated to the observation and characterization of meteors and space debris entering into the Earth's atmosphere. The scientific objectives of this mission require a high performance attitude determination and control system (ADCS). This thesis entails the development of attitude estimation and control algorithms for the Meteorix 3U cubesat. Attitude estimation and control requirements are outlined, given the mission's scientific objectives and the power needs of the satellite. A magnetometer-only multiplicative extended Kalmanfilter (MEKF) is formulated to estimate the satellite's attitude and angular velocity. Itis compared to a conventional gyro-based MEKF and uses the derivative of the magnetic field and the attitude dynamics model, in place of gyroscope measurements to update the angular velocity estimate. Results from Monte Carlo simulations show that the magnetometer-only MEKF outperforms a gyro-based MEKF in low angular velocity scenarios. A sliding mode controller is developed for attitude control using three magnetic actuators, while a single flywheel oriented in a momentum bias configuration provides gyroscopic stability. Using the attitude and angular velocity feedback from the magnetometer-only MEKF, the sliding mode control law offers better pointing accuracy than a standard proportional derivative (PD) magnetic feedback controller; it is also shown to be more robust to uncertainties and disturbances in a sensitivity study. The magnetometer-only MEKF suffers in the presence of model uncertainties such as flywheel misalignment and residual magnetic moment, and methods to improve the overall ADCSperformance are discussed"--

International Aerospace Abstracts

Download International Aerospace Abstracts PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 974 pages
Book Rating : 4.F/5 ( download)

DOWNLOAD NOW!


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:

Scientific and Technical Aerospace Reports

Download Scientific and Technical Aerospace Reports PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 994 pages
Book Rating : 4.:/5 (31 download)

DOWNLOAD NOW!


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 994 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Satellite Attitude Determination Planetary Landmarks

Download Satellite Attitude Determination Planetary Landmarks PDF Online Free

Author :
Publisher : Meem Publishers
ISBN 13 : 9783155314628
Total Pages : 0 pages
Book Rating : 4.3/5 (146 download)

DOWNLOAD NOW!


Book Synopsis Satellite Attitude Determination Planetary Landmarks by : Bulbul Mukherjee

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.

Advanced Attitude Control of Satellite

Download Advanced Attitude Control of Satellite PDF Online Free

Author :
Publisher : Springer Nature
ISBN 13 : 9819728479
Total Pages : 273 pages
Book Rating : 4.8/5 (197 download)

DOWNLOAD NOW!


Book Synopsis Advanced Attitude Control of Satellite by : Bing Xiao

Download or read book Advanced Attitude Control of Satellite written by Bing Xiao and published by Springer Nature. This book was released on with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: