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一种射电望远镜指向实时修正方法A
Authors
刘庆会
吴亚军
+3 more
左秀婷
董健
蒋甬斌
Publication date
1 January 2016
Publisher
Abstract
本发明公开了一种射电望远镜指向实时修正方法,包括以下步骤:控制射电望远镜对一射电源在赤经方向和赤纬方向各进行至少一次扫描以获取赤经扫描数据和赤纬扫描数据;基于线性函数和高斯函数构建用于描述所述赤经扫描数据和赤纬扫描数据的参数化模型,该参数模型中包含描述指向误差的参数;将赤经扫描数据和赤纬扫描数据代入所述参数化模型,采用拟合算法获得赤经和赤纬方向的指向误差,再通过坐标转换获得方位和俯仰方向的指向误差;基于所述指向误差控制射电望远镜修正指向,以消除所述指向误差。本发明公开的射电望远镜指向实时修正方法可用于射电望远镜指向的实时修正,以实时消除指向误差,同时可以解决在方位和俯仰坐标系下的高仰角扫描时方位运行速度过快问题
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Shanghai Astronomical Observatory,Chinese Academy of Sciences
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Last time updated on 20/01/2020