Factors affecting the zenith blind spot of an altitude-azimuth optoelectronic telescope

JI Tong-bo; CHEN Juan; YANG Xiu-hua; CHEN Tao

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Factors affecting the zenith blind spot of an altitude-azimuth optoelectronic telescope

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- Factors affecting the zenith blind spot of an altitude-azimuth optoelectronic telescope
- Optics and Precision Engineering Vol. 11, Issue 3, Pages: 296-300(2003)
- 作者机构：
  
  1. 中国科学院, 长春光学精密机械与物理研究所, 吉林, 长春, 130022
  2. 吉林大学, 网络中心,吉林长春,130012
- 作者简介：
- 基金信息：
- DOI：
  CLC： TH743
- Received：16 January 2003，
  
  Revised：03 March 2003，
  
  Published Online：15 June 2003，
  
  Published：15 June 2003
- 稿件说明：
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吉桐伯, 陈娟, 杨秀华, 陈涛. 地平式光电望远镜天顶盲区影响因素[J]. 光学精密工程, 2003,(3): 296-300

JI Tong-bo, CHEN Juan, YANG Xiu-hua, CHEN Tao . Factors affecting the zenith blind spot of an altitude-azimuth optoelectronic telescope[J]. Editorial Office of Optics and Precision Engineering, 2003,(3): 296-300
吉桐伯, 陈娟, 杨秀华, 陈涛. 地平式光电望远镜天顶盲区影响因素[J]. 光学精密工程, 2003,(3): 296-300 DOI：

JI Tong-bo, CHEN Juan, YANG Xiu-hua, CHEN Tao . Factors affecting the zenith blind spot of an altitude-azimuth optoelectronic telescope[J]. Editorial Office of Optics and Precision Engineering, 2003,(3): 296-300 DOI：

摘要

以常规代数方法

分析探讨了地平式光电望远镜天顶盲区形成的机理

结果显示跟踪架最大方位角速度、目标的飞行高度和飞行速度这三个参数确定了天顶盲区范围.利用天文球坐标系进行了分析

结果表明跟踪架最大方位角速度的限制是导致望远镜存在天顶盲区的最主要原因.在北纬60°跟踪赤纬不同的目标得到了具体跟踪数据

通过对比方位、俯仰角速度在天顶附近的变化规律

验证了天顶盲区首要影响因素是跟踪架方位角速度.

Abstract

The formation of the zenith blind spot of an altitude-azimuth optoelectronic telescope is analysed using a conventional algebraic method

and the results indicate that the scope of the zenith blind spot is determined by the maximum azimuth angular velocity of the tracking gimbal and the flight altitude and flight speed of the target. The analysis made in the astronomical sperical coordinates shows that the limit on the maximum azimuth angular velocity of the tracking gimbal is the primary cause for the zenith blind spot of an alitude azimuth optoelectronic telescope. Specific data were obtained by tracking targets with different declinations at latitude 60皀orth

and it is verified by comparing the varations of azimuth and pitch angular velocities near the zenith that the maijor factor affecting the zenith blind spot is the azimuth angular velocity of the tracking gimbal.

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references

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