| GPS接收机动态检定场中的时间同步问题 |
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| 引用本文： | 李军正,李建文,郝金明,张峰.GPS接收机动态检定场中的时间同步问题[J].测绘科学技术学报,2006,23(6):429-431. |
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| 作者姓名： | 李军正 李建文 郝金明 张峰 |
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| 作者单位： | 信息工程大学,测绘学院,河南,郑州,450052 |
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| 摘 要： | 首先,阐述了时间同步问题在GPS接收机动态检测中的重要性.其次,就相机快门延迟检测原理、检测方法进行了详细的讨论,检测出所使用的相机快门时间延迟约为90 ms,但有时会出现突变,得出了仅仅依靠机械快门无法实现相机在动态条件下的同步拍摄的结论.然后,结合液晶快门的控制对相机时间同步等问题进行了讨论.最后,给出了数码相机配合液晶快门以实现相机高精度同步的方法.
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| 关 键 词： | GPS接收机 动态检定场 时间同步 数码相机 |
| 文章编号： | 1673-6338（2006）06-429-03 |
| 收稿时间： | 2006-06-12 |
| 修稿时间： | 2006-09-30 |
The Time Synchronization in the Kinematic Verification Network for GPS Receivers |
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| LI Jun-zheng,LI Jian-wen,HAO Jin-ming,ZHANG Feng.The Time Synchronization in the Kinematic Verification Network for GPS Receivers[J].Journal of Zhengzhou Institute of Surveying and Mapping,2006,23(6):429-431. |
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| Authors: | LI Jun-zheng LI Jian-wen HAO Jin-ming ZHANG Feng |
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| Institution: | Institute of Surveying and Mapping, Information Engineering University, Zhengzhou 450052, China |
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| Abstract: | This article introduced the problem of time synchronization in the kinernatic verification network for GPS receivers. Firstly, the study presented the important of time synchronization in the kinematic examination. Secondly, it discussed the examining elements and examining rfiethods for delay Of the camera Shutter and found that the delay of camera shutter in the study was 90 ms but with some obvious change, and then conclded that the synchronic shoot could not. realize only depending on mechanical camera. Thirdly, combined with the control of liquid crystal shutter, it discussed the problem of time synchronization of camera. Finally, it concluded that the high precision for camera could be realized combing digital camera with liquid crystal shutter. |
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| Keywords: | GPS receivers kinematic verification network time synchronization digital camera |
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