Hydrographic Applications of the Global Positioning System,
DEFENSE MAPPING AGENCY HYDROGRAPHIC/ TOPOGRAPHIC CENTER WASHINGTON DC
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Global Positioning satellites have been tested under a variety of conditions and demonstrated exceptional accuracy. The most portable of the Phase I development equipment is the manpackvehicle user equipment MVUE of manpack. The purpose of this study was to determine if a manpack is suitably accurate for large scale coastal hydrographic surveying. The manpack was placed aboard in the Naval Postgraduate School Research Vessel, RV ACANIA. This objective required the testing of the manpack under varying survey conditions to determine the degradation of positional accuracy. The limit of the survey scale to which the unprocessed manpack data could be employed in a real-time operation was found to be 180,000 and smaller by the positioning error criteria of 0.5mm to the scale of the survey. Applications of differential techniques during the post-processing of the manpack position data increased the limit of the survey scale to 160,000 using the same position criteria.
- Hydrology, Limnology and Potamology
- Unmanned Spacecraft