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This paper constructed a sea wave height measurement system based on 3-D image measurement technique. As existing calibration [1] and matching algorithms cannot be applied to this system with distance extension (more than 20 km). Setting cameras maximally horizontal and fixing the focal length of the cameras can simplify the process of calibration, with information of a target object from a sequence...
In this paper, a successful research result from CAD-Grid (China-Austria-Cooperation-Grid-Frame), called as CA-RS-EP-PTBG (China-Austria-cooperation remote-sensing-embedded-parallel pre-treatment-service-base-of-Grid), is depicted. It helps scientists on various fields of information analysis and data mining for treating data conveniently with a high speed, sharing resource on-line, calling different...
Underwater geomagnetism-aided navigation now is advanced as a leading subject in navigation research field, for its merits of sensing-passivity, distribution-extensity and etc. But yet geomagnetic fieldpsilas unsteadiness may cause positioning resultspsila divergence after correlation matching, so the dynamic measurementspsila gross errors make this project an issue. After analyzing the specialties...
The lack of reference maps has been the constraint factor in underwater geophysical field of earth (GFE) aided navigation research, because the developed positioning algorithms can not be verified by accurate GFE-distribution patterns enough. After analysis of positioning modes in underwater navigation, two-dimensional scalar field can be concluded as the common mathematical fundamental. Combined...
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