天气雷达天线座水平度4方位检测法

4-azimuth measuring method to horizontality of antenna pedestals for weather radar

经过严格的数学推演,推导出仅需4个方位的天线座水平度检测数据即可通过数学处理获取准确的天线座水平度的数学理论模型。运用建立的数学模型处理4个方位的检测数据,可以计算天线座水平度倾斜角、天线方位旋转轴倾斜方位及可供仰角读数校准的仰角读数"真值"。与目前普遍采用的天线座水平度检测过程及数据处理方法相比,4方位检测法显著减少检测人员在天线罩内天线平台上的工作量及室内人工手动处理的工作量,而需要计算机软件自动完成的工作量明显增加。

Approaching from rigorously intensive and precise mathematical derivation,a theoretical mathematical model was established,namely,the precise value of horizontality of antenna pedestals ought to be obtained by means of the adoption of mathematical method with only 4-azimuth measuring readings of horizontality of antenna pedestals.Accurately,the model will provide the values of horizontality of antenna pedestals,the slant angle of the antenna azimuth-scanning axis,and the revised value of elevation angle,which could be used to adjust the reading of elevation angle.Compared with the prevailing measuring process and method of readings for horizontality of an-tenna pedestals,the 4-azimuth measuring readings of horizontality of antenna pedestals cost much less manual time,while most workload which the inspector used to have done in the indoor lab or on the antenna platform of the antenna dome was accomplished automatically by computer,and such workload increases markedly.