Calibration method for angular accuracy of microwave landing simulator

The invention provides a calibration method for the angular accuracy of a microwave landing simulator. According to the method, the phase noise of an output carrier signal and the EVM characteristicsof a data signal of a microwave landing simulator are measured, and then the signal-to-noise ratio of scanning signals is calculated and obtained. On the basis of the precision measurement on the output reference power azimuth and the elevation angle of the microwave landing simulator, the calibration on the angular accuracy of the microwave landing simulator within a dynamic range can be realized. The precision calibration problem for the azimuth angle and elevation angle signals of the microwave landing simulator within the dynamic range can be solved. 本发明提供了种微波着陆模拟器角精度标校方法，通过测量微波着陆模拟器输出载波信号的相位噪声及数据信号的EVM特性，计算得到扫描信号的信噪比，在微波着陆模拟器输出基准功率方位角、仰角精度测量基础上，基于微波着陆角精度分析理论，实现了微波着陆模拟器动态范围角精度标校，解决了微波着陆模拟器动态范围方位角、仰角信号精度的标校问题。