KMS of Xinjiang Astronomical Observatory, CAS
| 轮轨式反射面天线指向误差的确定方法 | |
| Alternative Title | Method for determining wheel-track type reflector antenna pointing error |
李素兰; 李娜; 米建伟; 朱韵茹; 冯树飞; 保宏; 王从思; 吴江; 班友; 项斌斌
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| 2015-06-18 | |
| Patent Number | 201510340140.8 |
| Rights Holder | 西安电子科技大学 |
| Country | 中国 |
| Subtype | 发明 |
| Status | 实质审查的生效 |
| Application Number | CN201510340140.8 |
| Open (Notice) Number | CN104931008A |
| Date Available | 2015-09-23 |
| Abstract | 本发明公开了一种轮轨式反射面天线指向误差的确定方法，主要解决现有的分析方法不能完整考虑轨道不水平、方位轴不铅垂、俯仰轴与方位轴不垂直以及机械轴与俯仰轴不垂直因素，建立综合轴系误差对天线指向误差影响关系的问题，其实现步骤是：根据轮轨式反射面天线的模型参数，首先建立理想情况即轴系无误差的情况下，大地坐标系到反射体坐标系的转换矩阵，得到理想情况下的指向向量；然后根据轴系误差分布情况，建立误差存在情况下的转换矩阵，得到此时的指向向量；从而分别得到方位和俯仰指向误差。本发明系统的考虑了综合轴系误差对天线指向误差的影响，为后续高指向精度天线的设计奠定基础，缩短研制周期。 |
| Other Abstract | The invention discloses a method for determining a wheel-track type reflector antenna pointing error. The problems that an existing analysis method cannot give complete consideration to factors of out-of-level tracks, non-plumb azimuth axes, non-vertical pitch axes, non-vertical pitch azimuth axes and non-vertical mechanical axes and pitch axes, and the relationship between a comprehensive axial system error and the antenna pointing error cannot be built are solved. The method includes the implementation steps that according to wheel-track type reflector antenna model parameters, a conversion matrix of a geodetic coordinate system to a reflector coordinate system under the ideal condition, namely the axial-system-error-free condition is built, and the pointing vector quantity under the ideal condition is obtained; then according to the axial system error distribution condition, a conversion matrix under the condition that the error exists is built, and the pointing vector quantity at the time is obtained; the azimuth and pitching pointing errors are accordingly obtained. According to the method, the influences of the comprehensive axial system error on the antenna pointing error are systematically considered, a foundation is laid to designing a follow-up high-pointing-accuracy antenna, and the development period is shortened. |
| Classification | G01C1/00 |
| Language | 中文 |
| Patent Agent | 北京科亿知识产权代理事务所(普通合伙) 11350 |
| Document Type | 专利 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/1533 |
| Collection | 110米口径全可动射电望远镜（QTT）_110米大口径全可动射电望远镜关键技术研究（973项目）_课题2：复杂环境下天线结构保型与高精度指向控制 射电天文研究室 |
| Affiliation | 西安电子科技大学 |
| Recommended Citation GB/T 7714 | 李素兰,李娜,米建伟,等. 轮轨式反射面天线指向误差的确定方法. 201510340140.8[P]. 2015-06-18. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 2015103401408.pdf（2754KB） | 专利 | 开放获取 | CC BY-NC-SA | Application Full Text | ||
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