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热带海洋学报 ›› 2012, Vol. 31 ›› Issue (3): 97-102.doi: 10.11978/j.issn.1009-5470.2012.03.013cstr: 32234.14.j.issn.1009-5470.2012.03.013

所属专题： 海洋大数据及应用

• 海洋地球物理学 • 上一篇    下一篇

精密枪控计时器设计及在海底数据采集中的应用*

胡家赋1, 徐华宁1, 丘学林2, 彭朝旭1, 伍忠良1   

  1. 1.广州海洋地质调查局, 广东 广州 510075;2. 中国科学院边缘海地质重点实验室, 中国科学院南海海洋研究所, 广东 广州510301
  • 收稿日期:2011-09-13 修回日期:2012-03-21 出版日期:2012-09-11 发布日期:2012-09-11
  • 作者简介:胡家赋(1968—), 男, 湖北省仙桃市人, 高级测绘工程师, 从事海洋测绘、导航定位生产和研究多年, 参加了多项国家高技术研究发展计划课题生产、软硬件开发与实现。E-mail: 1968hjf@sohu.com
    * 感谢中国科学院南海所第21环球航次第6航段赵明辉博士等对精密枪控计时器性能测试及应用试验。
  • 基金资助:

    国家高技术研究发展计划项目(2006AA09A202)

Design of gun controlling chronometer and its application in gathering and processing OBS data

HU Jia-fu1, XU Hua-ning1, QIU Xue-1in2, PENG Zhao-xu1, WU Zhong-liang1   

  1. 1. Guangzhou Marine Geological Survey, Guangzhou 510760, China;2. Key Laboratory of Marginal Sea Geology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
  • Received:2011-09-13 Revised:2012-03-21 Online:2012-09-11 Published:2012-09-11

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被引次数

6 | 2

摘要： 为了获得海底地震仪(ocean bottom seismograph, OBS)在海洋地球物理勘探中更真实准确的数据处理剖面, 必须消除导航、定位时间、定位精度对OBS数据采集和处理的影响。通过分析时间定位精度对OBS数据处理的影响及计时误差来源, 开发了精密枪控计时器以提高时间定位精度和消除常规计时误差, 计时精度达到0.01ms, 实现了高精度导航定位、炮点定位、时间定位和计时, 保证OBS地震数据采集的准确性和精度。经稳定性测试, 生产试验后的数据分析表明, 该设备时间精确、定位性能完全满足OBS多分量地震勘探要求并可应用于其他需要高精度计时的海洋地球物理勘探领域。

关键词: 枪控, 时间定位, 精密计时器, 导航定位, 海底地震仪, 地球物理勘探

Abstract: In order to obtain raw and accurate data processing section of ocean bottom seismograph (OBS) in marine geophysical exploration, negative effects of positional time and positional accuracy in acquisition and processing must be eliminated. Through analyzing the effects of the accuracy of positional time in OBS data processing and analyzing the timing error sources, we developed a gun controlling chronograph to improve positional precision and to eliminate conventional timing error; the accuracy can reach 0.01 ms, to realize high accuracy of navigation shotpoint time positioning and timing and to ensure the accuracy in OBS data acquisition. The results of stability testing and production testing show the time fixing capacity of chronograph can meet the demands of OBS multi-component acquisition perfectly, as well as in other marine geophysical prospecting areas that need high accuracy timing.

Key words: gun controlling, time fixing, time chronometer, navigation and position, ocean bottom seismograph, geophysical exploration

中图分类号: 

  • P738