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 34 for “"Technology readiness level (TRL)"”.
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Electronics development for the Deformable Mirror Demonstration Mission (DeMi)
… (DeMi) with the objective of increasing the NASA Technology Readiness Level (TRL) of the MEMS DM toward its use for direct exoplanet imaging on a future large aperture space telescope mission. This thesis outlines the key requirements for DM performance, successfully develops a …
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Analytic framework for TRL-based cost and schedule models
Many government agencies have adopted the Technology Readiness Level (TRL) scale to help improve technology development management under ever increasing cost, schedule, and complexity constraints. Many TRL-based cost and schedule models have been developed to monitor technology maturation, mitigate …
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Technology maturity analysis for assessing capacity and schedule risk of future automation projects
… that a risk assessment method, based on technology maturity analysis, can be used to reduce the time to decision, reduce the influence of personal bias, and improve the estimation of risk impact when evaluating proposed automation systems. The risk assessment method is based on the …
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Application of commercial best practices for new technology development within the constraints of defense contract funded R&D
… application of commercial best practices for new technology development within the constraints of the defense contract funded research and development (R&D) environment. Key elements of successful new product development (NPD) are identified from the literature, including strategic fit, …
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The Impact of Reliability in Conceptual Design - An Integrated Trade-off Analysis
… of early system concepts. This research uses technology readiness level (TRL), which is indexed, to select different levels of reliability for design. An integrated cost and performance model will inform decision-makers on the impact of reliability before choosing a system concept for further …
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Development of optically interrogated diagnostic systems within materials ageing experiments
… technologies were assessed as ranging in technology readiness level (TRL) from 2 to 6. For use in an experiment, further work would be required to mature the techniques up to TRL 9, and potential maturation routes are presented.
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Rendezvous approach guidance for uncooperative tumbling satellites
… with malfunctioning thrusters. Due to the low Technology Readiness Level (TRL) of autonomous (RPO) missions, first missions prefer to use flight proven technologies. This thesis implements a guidance algorithm based on the flight proven Clohessy-Wiltshire (CW) and space shuttle glideslope …
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A Monte-Carlo performance analysis of Kalman filter and targeting algorithms for autonomous orbital rendezvous
… an orbiting sample (OS) is seen as an enabling technology for a Mars Sample Return (MSR) mission, so several demonstrations have been planned. With CNES cooperation a proposed rendezvous demonstration was governed by ITAR restrictions, and a guidance and navigation system was designed using a …
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Method and Simulation of On-Orbit Sub-microthrust Evaluation
… and allow a thruster system to achieve a NASA Technology Readiness Level (TRL) of 7-8. A review is conducted of existing and proposed ground and on-orbit thrust measurement techniques. Experimental gaps and complementary methods are examined along with the current thrust resolution limits. A …
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An Investigation to Advance the Technology Readiness Level of the Centaur Derived On-orbit Propellant Storage and Transfer System
… model development. In order to raise the Technology Readiness Level (TRL) of this technology, the corresponding FM techniques and processes must be validated in a series of experimental tests, including: laboratory/ground testing, microgravity flight testing, suborbital flight testing, and …
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Resource-constrained avionics design for CubeSats
… hardware design for the Microwave Radiometer Technology Acceleration (MiRaTA) 3U CubeSat, funded by the NASA Earth Science Technology Office (ESTO), as a case study for our optimization analysis. MiRaTA will demonstrate a three-band microwave radiometer and GPS radio occultation (GPSRO) sensor …
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Real-time monitoring of scour and sediment deposition evolution at bridges and offshore wind turbine foundations based on soil electromagnetic properties
… in terms of its ability to detect bed level variations. The sensor design process included electromagnetic field modelling to optimise the electrode geometry within models that simulated various surrounding permittivity conditions. Principles of the sensor’s operation were established …
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Skyflower: A Reusable Tethered Lunar Landing System
… needs to system architecture and subsystem-level definitions. Through multiple design iterations, this thesis advances the technical detail of the lander’s key subsystems, including propulsion, guidance and navigation, tether deployment, and payload handling. While the current design remains …
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On-Orbit Characterization of a Microelectromechanical Systems (MEMS) Deformable Mirror (DM): Mission Results from the Deformable Mirror Demonstration Mission (DeMi) CubeSat
… wavefront control. This makes MEMS DMs a key technology for future space-based telescopes with adaptive optics for applications such as exoplanet direct imaging with coronagraphs. The DeMi payload design is a miniature space telescope with an adaptive optics system including a 140-actuator …
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Design and Evaluation of a Fiber Optic Probe as a means of Subsurface Planetary Exploration
… function of depth.</p> <p>This project takes the Technology Readiness Level (TRL) of the OPRA instrumentation concept to level 3, which is defined by NASA to be the demonstration either analytically or experimentally of the proof of concept for critical functions of the proposed instrument. …
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Antibody drug discovery: From Idea to Biotherapeutic Molecule
… the difficulty of a project called the Technology Readiness Level (TRL). Essential project decisions were identified, and recommendations made to track those issues. Bottlenecks were identified through queue analysis. Potential changes to fix these and other issues were piloted to …
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Embedded Computing for Wavefront Control on Future Space Telescopes
… reduce risk for spaceflight by increasing the technology readiness level (TRL) of the algorithm–processor pairing to TRL 4. Given the significant uncertainty in HWO’s eventual design, we extend our deterministic models using Monte Carlo methods to evaluate system performance under uncertainty. …
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Towards the Advancement of Rotating Synthetic Aperture Space Telescope Technology
… Application of rotating synthetic aperture (RSA) technology, which is a kind of dilute aperture imaging system, to space telescope designs has the potential to unlock the design space of low mass and cost, high resolution space telescopes. RSAs employ a high aspect ratio rectangular aperture that …
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Innovation pathways in technology intensive government organizations : insights from NASA
… a fundamental lack of understanding of how new technology development can, and should, be encouraged in this unique market structure and product context. This thesis seeks to address that gap by developing a more nuanced, and empirically grounded, explanation. R&D management practices typically …
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A CubeSAT Orbital Test Platform for an Electrothermal Plasma Micro-Thruster
… Many promising micro-propulsion systems have low Technology Readiness Level (TRL) and have limited-to-no space flight heritage, making their selection for a CubeSat mission more risky. A rapid, low cost, development and demonstration platform for advanced micro-propulsion systems is needed to …
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