KMS of Xinjiang Astronomical Observatory, CAS
| 一种变形大型单反射面天线的馈源位置补偿方法 | |
| Alternative Title | Feed source position compensation method of large-scale deformed single reflection surface antenna |
| 王从思; 李辉; 李兆; 刘鑫; 王伟; 朱敏波; 陈光达; 段宝岩; 黄进; 保宏; 宋立伟; 李鹏; 李娜; 李江江 | |
| 2013-09-02 | |
| Patent Number | ZL 201310393511.X |
| Copyright Date | 2016-03-09 |
| Rights Holder | 西安电子科技大学 |
| Country | 中国 |
| Subtype | 发明 |
| Status | 授权 |
| Application Number | CN201310393511.X |
| Open (Notice) Number | CN103488817A |
| Date Available | 2014 |
| Abstract | 本发明公开了一种变形大型单反射面天线的馈源位置补偿方法，主要解决单反射面天线因热变形引起的电性能下降问题。其方案是：（1）根据天线结构参数，建立未变形单反射面天线有限元模型；（2）计算在其上加载温度载荷后发生变形的节点坐标；（3）提取变形后主反射面的节点坐标和单元信息，建立天线热变形主反射面的电磁模型；（4）在天线热变形主反射面的电磁模型中，计算未补偿时的电性能；（5）利用遗传算法，对变形后主反射面的变形参量进行优化，由变形参量得馈源位置及指向，计算天线补偿后的电性能；（6）比较补偿前后天线的电性能，判断电性能提高量是否满足要求，是，为最佳馈源位置；否，重新设置优化参数再计算，直至满足要求。 |
| Other Abstract | The invention discloses a feed source position compensation method of a large-scale deformed single reflection surface antenna, which mainly solves the problem that the electric performance of a single reflection surface antenna is lowered due to thermal deformation. The method adopts the scheme of 1, establishing a finite element model of an undeformed single reflection surface antenna according to the structure parameter of the antenna; 2, calculating node coordinates when deformation occurs after a temperature load is loaded on the undeformed single reflection surface antenna; 3, extracting the node coordinates and unit information of a deformed main reflection surface, and establishing an electromagnetic model of the thermal deformed main reflection surface of the antenna; 4, calculating the electric performance before the antenna is compensated in the electromagnetic model of the thermal deformed main reflection surface of the antenna; 5, optimizing deformation parameters of the deformed main reflection surface by means of a genetic algorithm, obtaining the position and the direction of a feed source from the deformation parameters, and calculating the electric performance after the antenna is compensated; 6, comparing the electric performance of the antenna before and after compensation to judge whether the improvement of the electric performance meets the requirement, if so, judging the position to be the optimum position of the feed source, and if not, setting and optimizing the parameters again and calculating until the requirement is met. |
| Classification | G06F17/50 ; H01Q19/10 |
| Language | 中文 |
| Patent Agent | 西安通大专利代理有限责任公司 61200 |
| Document Type | 专利 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/1512 |
| 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 |
| Affiliation | 西安电子科技大学 |
| Recommended Citation GB/T 7714 | 王从思,李辉,李兆,等. 一种变形大型单反射面天线的馈源位置补偿方法. ZL 201310393511.X[P]. 2013-09-02. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 201310393511X.pdf（4383KB） | 专利 | 开放获取 | CC BY-NC-SA | Application Full Text | ||
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