| 提高海上白天测星能力的方法研究 |
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| 引用本文： | 张同双,李清军,沈湘衡. 提高海上白天测星能力的方法研究[J]. 光学精密工程, 2000, 8(3): 261-264 |
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| 作者姓名： | 张同双 李清军 沈湘衡 |
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| 作者单位： | 1. 中国卫星海上测控部,江苏江阴 214431
2. 中国科学院长春光学精密机械与物理研究所,吉林长春 130021 |
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| 摘 要： | 船载经纬仪是远洋航天测量船导航定位系统专用光学测量设备.该设备以电视跟踪和测量为基础,主要用于测量船执行海上卫星测控任务和校飞时提供精确的航向数据.通过昼夜测量恒星获取脱靶量解算航向角,修正惯性导航系统的航向差是船载经纬仪的主要功能.由于种种原因白天测星一直不很理想,本文从应用角度提出新的白天测星方法,并重点讨论了视频人工判读法.通过海上校飞及码头校飞的检验,可以提高白天测星的数量和星等,测量精度完全可以满足要求.
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| 关 键 词： | 白天测星 脱靶量 航向差 视频判读 |
| 文章编号： | 1004-924X(2000)03-0261-04 |
| 收稿时间： | 1999-12-03 |
| 修稿时间： | 1999-12-03 |
Method of measuring star at sea in daytime |
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| ZHANG Tong-shuang,LI Qing-jun,SHEN Xiang-heng. Method of measuring star at sea in daytime[J]. Optics and Precision Engineering, 2000, 8(3): 261-264 |
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| Authors: | ZHANG Tong-shuang LI Qing-jun SHEN Xiang-heng |
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| Affiliation: | 1. China Satellite Maritime Tracking &;Controlling Department, Jiangyin 214431, China;2. Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130021, China |
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| Abstract: | The theodolite designed for measure ship is a special optical equipment based on TV tracking and measuring for the use of navigation orientation system. When the measure ship carries out the measure assignment, it provides exact course data via measuring fixed star day and night. Its principal functions are to obtain undershoot error, count course angle and revise course error of inertia navigation system. For a variety of reasons, the measure in daytime can not meet the case. This article brings forward and discusses a new method of video manual interpretation. |
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| Keywords: | measuring star in daytime undershoot error course error video interpretation |
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