| 摘要: |
| 高精度水下定位技术对于维护国家海疆安全、海洋权益和国民经济建设具有十分重要意义和实际应用价值。根据射线在水中的传播特性, 利用双曲面定位方法建立长基线深海定位模型, 通过计算机仿真获得4 000 m水下信源在10 km2正方形范围内的定位误差精度及分布规律。结果表明: 浮标网络中心位置定位精度最高, 可得到亚米级; 离中心位置越远, 定位精度越差。 |
| 关键词: 长基线 深海定位 双曲面模型 定位精度 |
| DOI：10.11759/hykx20160816001 |
| 分类号: |
| 基金项目:国际海底区域资源研究与开发项目(1511410312035); 国家海洋局南海分局海洋科学技术局长基金(1525) |
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| Observation data simulation and positioning accuracy analysis of a 4-point long-baseline model in deep water |
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LIN Guan-ying,LIU Wei,ZHOU Bao-cheng,XU Ming-bin
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| Abstract: |
| High-precision underwater positioning is a widely used technology that is of great significance for the maintenance of national maritime security, maritime rights and interests, and national economic construction. According to the propagation characteristics of radiation in water, the long-baseline deep-sea positioning model is established using the hyperboloid positioning method. The accuracy and distribution of the positioning error of the 4 000 m underwater source in the range of 10 km2 are obtained via computer simulation. Results show that the positioning accuracy at the center of a buoy network is the highest, and the sub-meter level is obtained. The positioning accuracy decreases with increasing distance from the center position. |
| Key words: long baseline deep water positioning hyperboloid model positioning precision |
