Underwater target localization using long baseline positioning system
| Autor: | Cuie Zheng, Han Yunfeng, Dajun Sun, Jucheng Zhang |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Engineering
Acoustics and Ultrasonics Positioning system Long baseline acoustic positioning system business.industry Calibration Error 020206 networking & telecommunications 02 engineering and technology 01 natural sciences Beacon Position (vector) 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Global Positioning System Computer vision Artificial intelligence Underwater business Baseline (configuration management) 010301 acoustics Remote sensing |
| Zdroj: | Applied Acoustics. 111:129-134 |
| ISSN: | 0003-682X |
| Popis: | The absolute position of an underwater target is difficult to pinpoint because the global positioning system (GPS) cannot penetrate water bodies. The long baseline (LBL) positioning system can extend GPS using high-precision calibrated underwater beacons as references. While traditional LBL systems give the target position without considering calibration error of deployed beacons. To solve this problem, we propose a method different from previous works, that combining the errors of observations together. We use GPS outputs as true values to evaluate the localization performance. An LBL system with four beacons was installed in deep sea to test the results. The positioning accuracy in deep sea improves nearly 5 m. The results suggest that beacon positioning errors have a great impact on localization precision, that is significant in high-precision positioning tasks. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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