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A neural network method combined with simulated annealing algorithm is proposed for power system harmonic analysis. This method is aimed at the system in which the sampling frequency cannot be locked on the actual fundamental frequency. By updating the relevant parameters including the learning rate of fundamental frequency, fundamental frequency, harmonic phases and amplitudes, the accurate harmonic...
SIFT (scale invariant feature transform) is one of the most active research subjects in the field of feature matching algorithms at present. This algorithm can dispose of matching problem with translation, rotation and affine distortion between images and to a certain extent is with more stable feature matching ability of images which are shot from random different angles. but its algorithm is complicated...
Navigation problems of unmanned air vehicles (UAVs) flying in a formation in a free and an obstacle-laden environment are investigated in this brief. When static obstacles popup during the flight, the UAVs are required to steer around them and also avoid collisions between each other. In order to achieve these goals, a new dual-mode control strategy is proposed: a "safe mode" is defined...
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