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Showing result 11 - 15 of 549 essays matching the above criteria.
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11. Investigation of Antenna Radomes in Low Earth Orbits
University essay from Lunds universitet/Centrum för analys och syntesAbstract : Introduction: This master’s thesis focuses on exploring improved alternative material solutions for antenna radomes used to protect Beyond Gravity Sweden’s satellite antennas in low Earth orbits. Background: As the environment in low Earth orbit is harsh, surface materials on satellites experience high levels of atomic oxygen, ultra violet radiation, thermal-fluctuation, charged particles and micro meteoroids. READ MORE
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12. Antenna Arrays for Dual-Frequency Harmonic Radar Application
University essay from Lunds universitet/Institutionen för elektro- och informationsteknikAbstract : The aim of this thesis is to design two patch antenna arrays for dual-frequency harmonic radar application, one for the transmitter and the other for the receiver. The arrays are used to track the Bogong moth that migrates from the countryside to the Australian Alps during spring. READ MORE
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13. Effect of the ICRH Antenna Position on the Coupled Power in ITER and JET
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : Fusion energy has fascinated scientists for decades. One reason we do not see thispromising energy source powering today's society is the fact that the process requires extremeplasma temperatures. READ MORE
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14. Decreasing Training Time of Reinforcement Learning Agents for Remote Tilt Optimization using a Surrogate Neural Network Approximator
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : One possible application of reinforcement learning in the telecommunication field is antenna tilt optimization. However, one of key challenges we face is that the use of handcrafted simulators as environments to provide information for agents is often time-consuming regarding training reinforcement learning agents. READ MORE
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15. mmWave Coverage Extension Using Reconfigurable Intelligent Surfaces in Indoor Dense Spaces
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : Millimeter-wave (mmWave) is widely investigated for indoor communication scenarios thanks to the available rich spectrum. However, the shortened antenna size and the high frequency make mmWave extra sensitive to blockages. READ MORE