星载双反射面天线热变形测量数据处理方法

文章针对星载双反射面天线，根据常温、高温、低温3种工况下的天线热变形原始测量数据，基于标准抛物面拟合理论及公共点转换理论，提出了一种用于天线主反射器形状热变形及副反射器位置变化分析的测量数据处理方法，准确指导了星载天线的在轨性能预判分析，并为后续多种星载天线热变形的测量分析提供了新的参考方法。

Processing of measurement data of thermal deformation for double reflector antenna

In this paper, from the original measurement data of the thermal deformation of a paraboloid double-reflector antenna under the normal temperature, HT, and LT conditions, and based on the standard theories of the paraboloid fitting and the common-point conversion, we propose a new method to obtain the facial deformation of the mail reflector and the positional deformation of the sub reflector. The method is shown to be reliable for the prediction and the analysis of the on-board performance of the satellite double reflector antenna. The method may also be used for measuring and analyzing other satellite antennas with regard to their thermal deformation.