Learn More
Structural monitoring systems designed using wireless sensors have shown the potential to serve as low-cost substitutes to traditional cabled-based monitoring systems. In this study, an academic wireless sensing unit prototype explicitly designed for structural monitoring is introduced. To validate the performance of the proposed unit, a large-scale network(More)
Field deployment of wireless sensors is a necessary first-step towards validating their performance within the complex and challenging environments posed by civil structures. In this study, a wireless structural monitoring system, assembled from low-cost wireless sensor prototypes, is deployed upon the Geumdang Bridge, Korea. The wireless monitoring system(More)
The transport of grating blank at the nanometer scale is the key of diffraction grating fabrication technology. In this paper, a precision grating blank feeding system for a diffraction grating ruling engine was described in detail, and the dynamic characterization of fine motion stage (FMS) in the dual-actuated stage, in which a piezoelectric actuator (PA)(More)
  • Jin Yi
  • 2012
The paper briefly analyses the existing occlusion culling algorithm for terrain scene and puts forward an occlusion culling algorithm of line segment intersection to get real-time rendering, in order to realize efficient visibility culling in large 3D scale scene. It analyses its principle and complexity. Finally, experimental results on OGRE platform are(More)
A per-survivor adaptive interference cancellation (PSAIC) decoder is proposed for group decoding of a space–time trellis-coded DS-CDMA system. To mitigate error propagation by tentative decisions, per-survivor processing is introduced to a group decoder with adaptive interference cancellation. It is shown that the proposed decoder outperforms conventional(More)
  • 1