| 引用本文: | 姬生月,杨浩,董蔺,等.结合实时数据产品与北斗短报文的厘米级海洋精密相对定位.[J].国防科技大学学报,2022,44(6):134-143.[点击复制] |
| JI Shengyue,YANG Hao,DONG Lin,et al.Centimeter-level ocean precise relative positioning by combining real-time data products and BeiDou short-message[J].Journal of National University of Defense Technology,2022,44(6):134-143[点击复制] |
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| 结合实时数据产品与北斗短报文的厘米级海洋精密相对定位 |
| 姬生月1,杨浩1,董蔺2,王振杰1,贺凯飞1 |
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(1. 中国石油大学(华东) 海洋与空间信息学院, 山东 青岛 266580;2. 青岛杰瑞自动化有限公司, 山东 青岛 266061)
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| 摘要: |
| 针对远海精密定位的广泛需求和传统精密定位服务费用昂贵的问题,提出利用北斗短报文设备传输导航观测数据,结合实时服务数据产品,以实现海洋的低成本厘米级精密相对定位。为了克服短报文传输频率低的缺点,采用融合空间相对定位和精密单点定位两种技术来加密分钟间隔以外的坐标,避免了传统时间基线法加密坐标存在的误差累积现象。分别基于静态和动态海洋观测数据进行仿真实验,结果表明,新方法无论在水平方向还是垂直方向上,都可以实现厘米级定位,且对时间间隔不敏感。 |
| 关键词: 海洋 北斗短报文 实时数据产品 精密相对定位 低成本 |
| DOI：10.11887/j.cn.202206017 |
| 投稿日期：2020-11-12 |
| 基金项目:国家自然科学基金资助项目(41604027,41701513,41704021,42074028)；地震动力学国家重点实验室基金资助项目(LED2018B03)；中央高校基本科研业务费专项资金资助项目(16CX02026A,18CX02054A,18CX02064A)；山东省自然科学基金资助项目(ZR2020MD065,ZR2020MD042)；青岛海洋科技国家实验室基金资助项目(QNLM2016ORP0401) |
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| Centimeter-level ocean precise relative positioning by combining real-time data products and BeiDou short-message |
| JI Shengyue1, YANG Hao1, DONG Lin2, WANG Zhenjie1, HE Kaifei1 |
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(1. College of Oceanography and Space Informatics, China University of Petroleum (East China), Qingdao 266580, China;2. Qingdao JARI Automation Company, Qingdao 266061, China)
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| Abstract: |
| In view of the wide demand for precision positioning in the ocean and the high cost of traditional precision positioning services, it was proposed to use BeiDou short-message equipment to transmit navigation observation data, combined with real-time data products, to achieve low-cost centimeter-level precise relative positioning in the ocean. In order to overcome the shortcomings of low transmission frequency of short messages, for the first time, the two technologies of fusion spatial relative positioning and precise point positioning were used to encrypt coordinates outside the minute interval, avoiding the accumulation of errors in the encrypted coordinates of the traditional time-relative method. Simulation experiments were carried out based on static and dynamic ocean observation data. Results show that the new method can achieve centimeter-level positioning in both horizontal and vertical directions, and the results show that the new method is not sensitive to the length of time interval. |
| Keywords: ocean BeiDou short-message real-time data products precise relative positioning low-cost |
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