Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 54 for “"orbit determination"”.
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Information Measures For Statistical Orbit Determination
… requires frequent and accurate monitoring for orbit maintenance and collision avoidance using methods for statistical orbit determination. Statistical orbit determination enables us to obtain estimates of the state and the statistical information of its region of uncertainty given by the …
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Radiation force modeling for ICESat precision orbit determination
Precision orbit determination (POD) for the Ice, Cloud and land Elevation Satellite (ICESat) relies on an epoch-state batch filter, in which the dynamic models play a central role. Its implementation in the Multi-Satellite Orbit Determination Program (MSODP) originally included a box-and-wing …
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Precision orbit determination from GPS receiver navigation solutions
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1996.
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Orbit determination and prediction processes for low altitude satellites
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1980.
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Near Earth orbit determination and rendezvous navigation using GPS
Thesis: M.S., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 1986
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Orbit determination using modern filters/smoothers and continuous thrust modeling
… thrust, predicting their motion and performing orbit determination on them has introduced complications for space surveillance networks. One way to improve orbit determination for these satellites is to make use of new estimation techniques. This has been accomplished by applying the Backward …
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Orbit determination for medium altitude eccentric orbits using GPS measurements
… medium altitude circular and elliptical orbits. These projects will track their satellites using the GPS system, which has been used on LEO satellites for several years. But can GPS be used as the sole input for the orbit determination of satellites in these medium altitude eccentric …
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Python Implementation of Batch Least-Squares Filter for Satellite Orbit Determination
<p>Accurate orbit determination techniques are fundamental to the maintenance and execution of any ongoing space-based mission. This project serves as a guide and demonstration of a batch sequential least-squares filter for Earth-orbiting satellites using exclusively open-source technologies. The …
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Image Classification and Initial Orbit Determination of Resident Space Objects (RSO)
… congestion and potential collisions in Earth’s orbit. Optical imagers, based in both ground and space, serve as important tools for observing, detecting, and studying resident space objects (RSOs). Optical imagers capture vast amounts of data that can be used for different applications in SSA …
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New Estimation Algorithms With Applications To Relative And Absolute Orbit Determination
Three papers are presented that develop new estimation algorithms for the relative navigation of high-altitude spacecraft and for systems that have implicitly defined measurement times. The first two papers focus on the use of carrierphase differential GPS techniques with integer ambiguities to …
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Precise orbit determination and analysis from satellite altimetry and laser ranging
… it is necessary to know precisely the orbital position of the spacecraft. The aim of this thesis is therefore two-fold - firstly to derive precise orbits with particular emphasis placed on the altimetric satellite SEASAT and secondly, to utilize the precise orbits, to improve upon …
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A Comparison of Nonlinear Filters for Orbit Determination and Estimation (Satellite)
… of three filters when applied to the problem of orbit determination using actual satellite data obtained from ground based radars. The states estimated are the osculating classical orbital elements and the satellite ballistic coefficient. The dynamics used to propagate the state vector forward in …
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Formulation and evaluation of parallel algorithms for the orbit determination problem
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 1980
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Implementing a 50x50 gravity field model in an orbit determination system
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1993.
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On-Board Orbit Determination and 3-Axis Attitude Determination for Picosatellite Applications
This thesis outlines an orbit determination and 3-axis attitude determination system for use on orbit as applicable to 1U CubeSats and other picosatellites. The constraints imposed by the CubeSat form factor led to the need for a simple configuration and relaxed accuracy requirements. To design a …
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Application of the homotopy continuation method to low-eccentricity preliminary orbit determination
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1991.
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A Monte Carlo tool for simulation of satellite orbit determination by radio interferometry
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1993.
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Geosynchronous orbit determination using space surveillance network observations and improved radiative force modeling
… properties. This study is intended to improve orbit determination accuracy for 3-axis stabilized GEO spacecraft via an improved radiative force model. The macro-model approach, developed earlier at NASA GSFC for the Tracking and Data Relay Satellites (TDRSS), models the spacecraft area and …
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