Sökning: "amplitudspektrum"

Hittade 2 uppsatser innehållade ordet amplitudspektrum.

1. 1. Preprocessing of earthquake tremor data for tremor location

   Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Brian Rydgren; [2022]
   Nyckelord :Tremor; Earthquake; Volcano;

   Sammanfattning : When analysing volcanic seismicity and volcanic events, it is often interesting to focus on tremor, which is a signal of long duration. This is because not much is known about tremor. Unlike earthquakes, sources of tremor are difficult to locate due to them not having any clear onsets in the seismic signal. LÄS MER

3. 2. Analys av PWM-mönster i Matlab

   Uppsats för yrkesexamina på grundnivå, Institutionen för teknik och naturvetenskap

   Författare :Mikael Milevski; [2002]
   Nyckelord :Datavetenskap; PWM-mönster; amplitudspektrum; FFT; Matlab; övertoner; modulationsindex; frekvensförhållandet; symmetriska komponenter; nollföljd; plusföljd; minusföljd; nollföljdstillägg; modulation; PWM; pulsbreddsmodulation; IGBT; VSC; sexpulsbrygga.; Datavetenskap;

   Sammanfattning : One of ABB Power Systems´s business areas is HVDC (High Voltage Direct Current) technology. HVDC is used for transmissions for both short and long distances. One of Power Systems’s products is called HVDC Light. HVDC Light is a relatively new technology for power transmission, but have before only been used for motor drives applications. LÄS MER