Precise Control of Antenna Position in Arc-Rail Based GB-SAR System
| Autor: | Seong-Jun Cho, Nak-Hoon Sung, Jae-Hee Lee, Moon-Kyung Kang, Kwang-Eun Kim |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Engineering
business.industry Antenna measurement Astrophysics::Instrumentation and Methods for Astrophysics Terrain Motion control Displacement (vector) Control theory Position (vector) Earth and Planetary Sciences (miscellaneous) Linear scale Computers in Earth Sciences Antenna (radio) business Engineering (miscellaneous) Encoder Computer Science::Information Theory |
| Zdroj: | Korean Journal of Remote Sensing. 27:25-31 |
| ISSN: | 1225-6161 |
| DOI: | 10.7780/kjrs.2011.27.1.025 |
| Popis: | Precise control of antenna position is very critical in ArcSAR system which uses an arc-rail as a platform for the antenna movement instead of linear rail. In order to minimize the antenna positional error, we improved the motion driving system and applied a newly developed motion control S/W which utilizes the real time antenna position information from magnetic linear scale and encoder. The experimental results showed that the rotational RMS error was reduced to from . In terms of antenna positional RMS error for the arm length of 3m, it was reduced to 0.324mm from 2.262mm. It is expected that the ArcSAR system can be used to monitor the sub-millimetric displacement of terrain and structural targets. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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