48 research outputs found
Capture of free-flying payloads with flexible space manipulators
A recently developed control system for capturing free-flying payloads with flexible manipulators is discussed. Three essential points in this control system are, calculating optimal path, using a vision sensor for an external sensor, and controlling active vibration. Experimental results are shown using a planar flexible manipulator
Proposal and analytical investigation of optical comparator for optical and electrical converted Viterbi‐decoding scheme
Pulsed liquid jet dissector using holmium:YAG laser – a novel neurosurgical device for brain incision without impairing vessels
Performance evaluation of fractional OFDM for extending transmission distance without reducing spectral efficiency
The performance of a fractional orthogonal frequency division multiplexing (FrOFDM) system is examined considering spectral efficiency (SE). While FrOFDM can reduce peak-to-average power ratio, which is a drawback in OFDM, its bandwidth is expanded. Simulations were performed to evaluate the increasing amount of transmission distance from the signal-to-noise ratio of the received signals with keeping the best SE of OFDM. Simulation results show that FrOFDM can increase the transmission distance without reducing SE