| 张庆国,匡彪,要庆生,连莉.船载水声定位系统自动校准技术研究[J].声学技术,2018,37(6):535~539 |
| 船载水声定位系统自动校准技术研究 |
| Research on automatic calibration technique of shipborne underwater acoustic positioning system |
| 投稿时间：2017-09-06 修订日期：2018-02-10 |
| DOI：10.16300/j.cnki.1000-3630.2018.06.004 |
| 中文关键词: 船载系统|水声定位系统|自动校准方法 |
| 英文关键词: shipborne system|underwater acoustic positioning system|automatic calibration method |
| 基金项目: |
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| 中文摘要: |
| 在分析常规水声定位系统校准方法的基础上，结合某型船载水声定位系统的工程研制，提出了一种自动校准方法。该方法无需常规的动态或静态校准，可在每次系统安装完成后自动检测及校准。利用基阵中心位置的发射换能器以及船只固定连接杆入水端的发射换能器依次发射校准声信号，将获得的水声定位坐标与上述两个发射换能器固定对应的全球定位系统(Global Positioning System,GPS)天线坐标进行平移和偏转，获得偏移参数矩阵，实现系统校准。某水域的跑船试验验证结果表明，利用该自动校准方法可在两分钟内完成全部自检及校准工作，并且水声定位轨迹与跑船GPS轨迹重合较好，具有校准效率高、测量精度高等优点。 |
| 英文摘要: |
| On the basis of analyzing the calibration methods of conventional underwater acoustic positioning system, an automatic calibration method combining the development of the shipborne underwater acoustic positioning system is proposed. This method does not require routine dynamic or static calibration, and the system can be automatically detected and calibrated after each installation. The method uses both the transmitting transducer at the center of the array and the transmitting transducer at the water inlet end of a fixed connecting rod with the vessel to transmit acoustic calibration signals in turn, so that the acoustic positioning coordinates are obtained, and the GPS coordinates are obtained by two GPS antennas which are fixed correspondingly with the two transmitting transducers; then translates and deflects the acoustic positioning trajectory to make it well coincide with the GPS trajectory of running ship, and to obtain the offset parameter matrix. Thus, the system calibration is implemented. The experimental results show that this calibration method can complete all self-checking and calibration within two minutes. The most important operation in this method is to make the underwater acoustic positioning trajectory coincide well with the GPS trajectory of the running ship. The method has high calibration efficiency and high measuring accuracy. |
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