二次雷达S模式询问机代码处理方法研究

Research on Method of Interrogator Code Processing of Mode S Secondary Surveillance Radar

文章提出了一种改进型的II/SI码处理方法。询问机代码(IC码)包括询问机识别码(II码)和监视识别码(SI码)。对于ICAO推荐使用的二级应答机,偶尔存在不支持地面站SI码的情况。文章提出的方法通过改进S模式应答信号的处理流程,实现对仅支持II码的飞机应答的处理。通过在实际应用下验证,该方法可正常探测飞机,拓展了二次雷达S模式的应用。

An improved II/SI code processing method is proposed in this paper.The interrogator code(IC code)includes interrogator identifier code(II Code)and the surveillance identifier code(SI Code).There are occasional cases of aircraft transponder level two recommended by ICAO that do not support the SI code of the ground station.The method proposed in this paper improves the processing process of mode-S reply and enables the processing of aircraft responses that support only II codes.By verification in practical application,it is shown that the method can detect aircraft normally,and the application of the secondary surveillance radar mode-S is expanded.