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Effects of Time Synchronization Errors in IoT Networks
(2019)
Diplomityö
Diplomityö
Internet of Things is a term referring to the wireless connection of people and devices, briefly referred to as ‘things’. The growth of technology has become so rapid, that people are finding various ways and means to ...
Jamming Detection using Wavelet Transforms
(2019)
Diplomityö
Diplomityö
Modern Global Navigation Satellite Systems (GNSS), such as GPS and Galileo, play vital role in providing high precision navigation and positioning services for civilian and military applications. The high precision feature ...
Text Analytics Methods for Sentence-level Sentiment Analysis
(2019)
Diplomityö
Diplomityö
Opinions have important effects on the process of decision making. With the explosion of text information on networks, sentiment analysis, which aims at predicting the opinions of people about specific entities, has become ...
Design and Implementation of IDCT/IDST-Specific Accelerators for HEVC Standard on Heterogeneous Accelerator-Rich Platform
(2019)
Diplomityö
Diplomityö
Having High Efficiency Video Coding (HEVC) is important for image processing, reducing bandwidth, and increasing video quality. There are different methods that can be used to implement HEVC. This thesis focuses on design ...
Developing manufacturing process of stators of induction motors.
(2019)
Diplomityö
Diplomityö
This thesis describes Company A’s motor supplier Company B’s manufacturing process of stators of induction motors and development needs. Company B’s development of the stator manufacturing has not been sufficient level, ...
Self-Interference Cancellation in Interband Carrier Aggregation Transceivers
(2017)
Diplomityö
Diplomityö
The increasing amount of data usage by mobile phone users requires higher data rates which, in turn, calls for employing larger bandwidths and flexible transmission schemes. To meet these demands, advanced solutions such ...
Power quality issues in distribution grids caused by solar PV power generation
(2018)
Diplomityö
Diplomityö
Distributed power generation is not future anymore. Solar PV power generation is widely spread and this has an impact on the distribution grid. The biggest impact is the possibility that overvoltages can occur during moments ...
Implementation of Interlocking Scheme for Bus bar and Arc Protection Using IEC 61850
(2017)
Diplomityö
Diplomityö
The main scope of the thesis is to focus on bus bar protection in the medium voltage level. It is important for designing the protection setup according to the intended protection scheme, planning for circumvent the arc ...
Investigation on grid synchronization methods in PV inverters during unbalanced conditions
(2018)
Diplomityö
Diplomityö
Photovoltaic power is vital to meet the future global energy demand. DC power from the photovoltaics is converted to AC power using PV inverters and integrated into the AC power electrical grid. The synchronous operation ...
Reliability analysis of the Finnish power system
(2018)
Diplomityö
Diplomityö
Maintaining power system security and adequacy has become more and more challenging due to the desire to decarbonize the electricity sector promoting renewable electricity. Power inadequacy occurs when the available ...