About 170 Starshield satellites built by SpaceX for the US government’s National Reconnaissance Office (NRO) have been sending signals in the wrong direction, a satellite researcher found. The ...
Abstract: The three-level neutral-point-clamped (3L-NPC) inverter is a mature topology that tends to be utilized in the next-generation powertrain in heavy-duty electric vehicles (EVs). However, the ...
Abstract: Attitude determination technology based on the Global Navigation Satellite System (GNSS) has been widely studied due to its low cost and no accumulation of errors. The essential task of ...
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