Dot-Projection Photogrammetry and Videogrammetry of Gossamer Space Structures
| Autor: | Thomas W. Jones, Paul M. Danehy, Adrian A. Dorrington, Richard S. Pappa, Jonathan Black, Joseph R. Blandino |
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| Rok vydání: | 2003 |
| Předmět: | |
| Zdroj: | Journal of Spacecraft and Rockets. 40:858-867 |
| ISSN: | 1533-6794 0022-4650 |
| DOI: | 10.2514/2.7047 |
| Popis: | The technique of using hundreds or thousands of projected dots of light as targets for photogrammetry and videogrammetry of gossamer space structures is documented. Photogrammetry calculates the three-dimensional coordinates of each target on the structure, and videogrammetry tracks the coordinates vs time. Gossamer structures characteristically contain large areas of delicate, thin-film membranes. Examples include solar sails, large antennas, inflatable solar arrays, solar-power concentrators and transmitters, sun shields, and planetary balloons and habitats. Using projected-dot targets avoids the unwanted mass, stiffness, and installation costs of traditional retroreflective adhesive targets. Four laboratory applications are covered that demonstrate the practical effectiveness of white-light dot projection for both static-shape and dynamic measurement of reflective and diffuse surfaces, respectively. Comparisons are made between dot-projection videogrammetry and traditional laser vibrometry for membrane vibration measurements. A promising extension of existing techniques using a novel laser-induced fluorescence approach is introduced. |
| Databáze: | OpenAIRE |
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