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Now showing items 21-30 of 94
Enabling human-robot cooperation in scientific exploration of bandwidth-limited environments
(Massachusetts Institute of Technology, 2020)
Contemporary scientific exploration most often takes place in highly remote and dangerous environments, such as in the deep sea and on other planets. These environments are very hostile to humans, which makes robotic ...
Towards location-awareness in next generation wireless networks : a new approach based on channel state information
(Massachusetts Institute of Technology, 2020)
Location-awareness in next generation wireless networks will be a key enabler for numerous emerging applications. Recently, a novel approach to localization based on soft information (SI), exploiting all positional information ...
Material and fabrication developments in the ion-electrospray propulsion system
(Massachusetts Institute of Technology, 2020)
In this thesis, new materials, microfluidic control devices, and fabrication techniques were developed in support of the ion electrospray propulsion system (iEPS) developed by MIT's Space Propulsion Lab. MEMS fabrication ...
Liquid lens beam steering and environmental testing for the miniature optical steered antenna for inter-satellite communication
(Massachusetts Institute of Technology, 2020)
We investigate the feasibility of using a series of deformable liquid lenses to achieve wide-angle beam steering for CubeSat laser communication (lasercom) crosslinks. Liquid lenses are lenses that can non-mechanically ...
Optical modeling and validation for the deformable mirror demonstration mission
(Massachusetts Institute of Technology, 2020)
Microelectromechanical Systems (MEMS) Deformable Mirrors (DMs) are a promising technology to enable the wavefront control required for high contrast imaging and characterization of exoplanets with coronagraph instruments. ...
Modeling current and future telescope system concepts for exoplanet exploration
(Massachusetts Institute of Technology, 2020)
Exoplanet exploration missions have led to the discovery of thousands of planets orbiting other stars within a few decades since the first exoplanet detection was confirmed. The goal of discovering an Earth analog in the ...
A Control-theoretic approach to forced response system identification of rocket engine turbopump cavitation dynamics
(Massachusetts Institute of Technology, 2020)
High performance turbopumps are used in many rocket propulsion systems to reduce the weight and cost of the system. However, to meet these weight conditions and the demands of the rocket engine, turbopumps must operate at ...
Augmented reality navigation system for human traversal of rough terrain
(Massachusetts Institute of Technology, 2020)
At some point in the near future, astronauts will resume the decades dormant practice of planetary EVA. Because of the resource scarcity of extra-terrestrial environments, finding and following efficient paths during EVA ...
Partial gravity simulators, harness design, and an examination of gait transitions in partial gravity
(Massachusetts Institute of Technology, 2020)
Humans exhibit an abrupt switch from walking to running in Earth gravity, suggesting at different gaits being modulated by different neuronal networks. This abrupt change is indicated in significant changes in muscle ...
New problems in revenue management, theory and applications
(Massachusetts Institute of Technology, 2020)
This thesis studies new applications of revenue management that can be used by airlines and the ride-sharing industry. Our first and main focus is on online advertising with applications to advertisement of flight tickets. ...