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In order to compensate 6-dof relative motion between the ship and large size or weight containers in replenishment operation at sea, a cable-drive parallel robot with 6-dof active wave compensation was designed. The robot is composed of platform, cables, drivers and sensors etc. It could compensate the 6-dof motion of cargo in replenishment operation. The structure and wave compensation principle...
A Transmitted Reference (TR) Ultra WideBand (UWB) signal with double hybrid Direct Sequence and Time Hopping (DS-TH) spreading is proposed and its symbol-level synchronization scheme is designed and analyzed. The proposed signaling format can significantly reduce the search space while reducing the spectral lines and eliminating inter-frame interference and multi-user interference. Detailed analysis...
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