AERIAL PROFILING OF TERRAIN SYSTEM
In 1974 the U.S. Geological Survey entered into an engineering analysis contract with Charles Stark Draper Laboratory to study the concept of executing accurate surveys of the terrain from low-flying aircraft using a laser profiler and inertial guidance technology. This analysis and later studies concluded that the desired accuracy, within 0.5 feet (15 cm) vertically and 2 feet (61 cm) horizontally, could be achieved for extended missions if positional updates are provided at 3-minute time intervals. A laser tracking instrument for ranging and measuring directions to ground reflectors was proposed to provide the update data. The project has progressed through the early experimental phases, system design and component fabrication, and the integration of components into subsystems has begun. Laboratory calibration and testing of the system will be completed in the fall of 1982 and installation in the Twin-Otter aircraft will then begin, and flight testing will follow beginning in early 1983. (Author)
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Corporate Authors:
U.S. Army Waterways Experiment Station
3909 Halls Ferry Road
Vicksburg, MS United States 39180-6199 -
Authors:
- Chapman, W H
- Publication Date: 1982-4
Media Info
- Features: Figures; References;
- Pagination: p. 247-260
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Serial:
- Publication of: Waterways Experiment Station
- Publisher: U.S. Army Waterways Experiment Station
Subject/Index Terms
- TRT Terms: Accuracy; Aerial surveying; Calibration; Lasers; Profilometers; Terrain evaluation
- Old TRIS Terms: Aerial surveys; Laser applications
- Subject Areas: Design; Highways; Planning and Forecasting; I21: Planning of Transport Infrastructure;
Filing Info
- Accession Number: 00369326
- Record Type: Publication
- Report/Paper Numbers: Proceeding
- Files: TRIS
- Created Date: Jan 31 1983 12:00AM