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.
Results
Showing 1 to 20 of 68 for “"small satellite"”.
-
Design and implementation of small satellite inspection
… Position Hold Engage Reorient Experimental Satellites, known as SPHERES. Evaluation of hardware performance was done using data from the International Space Station, in concert with ground-based simulations. Ultimately, this work is in preparation for future experimentation using the VERTIGO …
-
Adaptive thermal modeling architecture for small satellite applications
… recognize the importance of moving towards smaller, better, and cheaper spacecraft to support the nation's increasing dependence on space-based technologies. Whether large or small, all spacecraft will require the same basic bus systems and environmental protection, simply scaled to fit the …
-
Risk management of student-run small satellite programs
… mode identification in university-affiliated, small satellite programs. These small programs have a unique set of risks due to many factors, including a typically inexperienced workforce, limited corporate knowledge, and a high student turnover rate. Only those risks unique to small, …
-
Onboard distributed replanning for crosslinked small satellite constellations
… planning and scheduling approach for crosslinked small satellites Earth observation missions. The example cases used involve 65 small satellites in ISS and Sun Synchronous Orbits, as well as NASA's Near Earth Network groundstations, and three target cases. Target cases include urgent observations. …
-
An integrated evolutionary model approach to small satellite engineering
… in the design, fabrication, and operations of small satellites (<180kg). This need led to the design of the Integrated Evolutionary Model (IEM) approach to small satellite engineering. The IEM approach uses integrated modeling throughout the satellite design life cycle to support the …
-
Planning and scheduling for earth-observing small satellite constellations
The growth of Earth-observing small satellite constellations requires effective, automated operations management. State-of-the-art techniques must be improved to manage scheduling of observation data collection, data routing through a crosslinked constellation network, and maintenance of limited …
-
Considerations for Defense Contractors Entering the Small Satellite Market
… have historically relied on large unique satellites to accomplish their communication and earth-sensing missions. In recent years, there has been a rapid expansion of the commercial small satellite sector as technology has demonstrated that several small satellites can accomplish the same …
-
Developing a disturbance source characterization technique for small satellite applications
… candidate sources of disturbance for small satellite applications. By characterize we mean estimate disturbance source vibrational frequencies, and by candidate sources we mean sources previously determined with the ability to induce micro-vibrations. This framework centers on the …
-
Designing of a solar panel deployment mechanism for small satellite
… increase of low cost space mission. Almost every small satellite has appendages like Solar Panels OR Antennas. These appendages have large inertial forces with low structural rigidity and mass to size ratio. These appendages are in stowed position in launcher to accommodate the whole satellite in …
-
A small satellite preliminary thermal control and heat shield analysis
As part of a student owned small satellite project, a preliminary thermal control and heat shield analysis was developed to verify acceptable performance requirements for the system. For the thermal control section, the analysis was focused on the Bus module of the satellite. It measured the …
-
The Virginia Tech FlatSat: A platform for small satellite testing
The small satellite community understands that small satellite missions need to produce two models of the satellite. The flight model is the final model of the spacecraft, which will fly in the space environment. The other, an engineering model, also known as a ”Flat-Sat,” is a lower fidelity …
-
Implementation of a configurable small satellite design and mission planning tool
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-02-04 without embargo terms
-
Attitude control system for the high energy transient experiment small satellite
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1991.
-
OPTASAT: An Open-Source, Flexible Software Framework for Small Satellite Operations
… and massive corporations. The operators of small spacecraft today include many early-career individuals who need the tools to enable them to make strong decisions in the behavior of their spacecraft. The tools for operating spacecraft are often overlooked by teams focusing on the spacecraft …
-
Small satellite optical communication receiver for simultaneous spatial tracking and data demodulation
… power requirement is particularly appealing to small satellites with strict size, weight and power (SWaP) requirements. In the case of free-space optical communication, precise pointing, acquisition and tracking (PAT) of the incoming beam is necessary to close the communication link. Due to the …
-
Alternative Mission Concepts for the Exploration of Outer Planets Using Small Satellite Swarms
… step further by investigating the potential for small satellite swarms to provide extensive studies of the Saturn system. To do this, an architecture was developed to best replicate the Cassini Primary Mission science objectives using swarms of CubeSats. Cassini was chosen because of its …
-
Development and analysis of a small satellite attitude determination and control system testbed
… 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 …
-
Performance and Analysis of a Deployable Diffractive Optical Element for Small Satellite Missions
As space missions push toward smaller, lighter, and more deployable instrumentation, diffractive optical elements (DOEs) offer a compelling alternative to traditional optics. Their ability to focus light through engineered phase profiles rather than curved surfaces allows for large-aperture, flat …
-
A pilot study of fatigue and situation awareness during simulated small satellite operations
… annual costs. Of particular concern with small satellites is the operation of multiple robotic assets. SPHERES, a small satellite testbed, was used to examine the effects of fatigue and presence of an augmented display with situation awareness aids. All procedures were approved by the MIT …
Page 1 of 4