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。
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.
出处
《光学精密工程》
EI
CAS
CSCD
2000年第3期261-264,共4页
Optics and Precision Engineering
关键词
白天测量
脱靶星
航向差
视频判读
船载经纬仪
measuring star in daytime
undershoot error
course error
video interpretation
