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Focus stacking in UAV-based inspection
(2019)
Diplomityö
Diplomityö
In UAV-based inspection the most common problems are motion blur and focusing
issues. These problems are often due to low-light environment, which can be compensated to some extent with shorter exposure times by using ...
Utilization of Water Flow Measurement in a River System
(2019)
Diplomityö
Diplomityö
Hydropower is significant form of electricity production in the Nordics. Over half of the produced electricity in the Nordics is hydropower. Hydropower is a renewable source of low-cost electricity with great flexibility. ...
CP-free OFDM for Future Wireless Communication Systems
(2019)
Pro gradu -tutkielma
Pro gradu -tutkielma
Orthogonal frequency division multiplexing (OFDM) is a multicarrier transmission scheme and has been widely used in communication systems due to the advantages like simpler equalization, flexible signal arrangement and so ...
Impact of Input EMI Filter Design on the Dynamic Performance of Average-Current-Mode Controlled Boost Converter
(2019)
Diplomityö
Diplomityö
An input EMI filter is usually employed for dealing with electromagnetic interference (EMI) caused by the switching actions of switched-mode converters. However, the existence of the input filter often interacts with the ...
Spectrally enhanced OFDM techniques
(2019)
Pro gradu -tutkielma
Pro gradu -tutkielma
Evaluation of Criteria for Transmission Capacity Calculation
(2019)
Diplomityö
Diplomityö
Voltage and angle stability along with the thermal loadability of the transmission lines are limiting the transmission capacity of the Nordic power system. Voltage stability after a dimensioning fault limits the transmission ...
Pienasiakkaiden tehomaksun käyttöönoton periaatteet
(2019)
Diplomityö
Diplomityö
Sähkön siirtohinnoittelurakenne perustuu suurelta osin kymmeniä vuosia sitten määritettyyn tuoterakenteeseen. Merkittävä osa verkkoyhtiön kustannuksista syntyy kapasiteetin eli hetkellisen tehonkäyttömahdollisuuden ...
Comparison of Conventional 50-ohm Impedance Matching and Antenna Self-Matching for Energy Harvester : Master of Science Thesis
(2019)
Diplomityö
Diplomityö
In recent time, the demand of low power wirelessly operated application devices has shown a rapid growth. To energize these low power devices with conventional batteries is a significant problem because these storage devices ...
Tuulivoimalaitosten dynaamiset simuloinnit PSS®E-ohjelmistolla
(2019)
Diplomityö
Diplomityö
Voimalaitosten toiminta verkon vikojen aikana ja jännitesäädön vaste ovat keskeisiä asioita koko voimajärjestelmän stabiiliuden kannalta. Yksittäisen voimalaitoksen epästabiili toiminta voi johtaa suurempaan koko järjestelmän ...