The responsive signal’s identification of airborne mode A/C transponder
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摘要: 本文针对民航机场地面接收系统和航路/航线的对空监视系统接收机载应答机发出的A、C模式应答代码的区分问题,提出了一种结合民航应用实际的识别方法。该方法在分析机载应答机发出的A、C模式应答信息基本格式的基础上，结合A、C模式的物理意义和应用特点，给出了初步识别结果，在此基础上，根据机场附近和航路上A、C模式的编号特点，以及中国民航规定的飞行高度层等实际情况，对收到的应答信号做进一步的识别。通过现场试验，本文方法解决了A、C模式应答代码的识别问题，提高了A、C模式应答代码识别的准确性和可靠性，在民航多点定位监视等领域具有重要应用价值。Abstract: Aiming at the problem of the responsive signal’s identification of airborne mode A/C transponder for civil airport ground receiving station and aviation surveillance system, a method that has a great practical value in the field of civil-aviation application is presented. This method gives the initial results based on the responsive signal’s basic structure that generated by the airborne transponder and the responsive signal’s physical meaning of mode A/C. On the basis of the initial results, some actual situations, such as the responsive signal’s encoding rules of mode A/C for civil airport and aviation route and the flight level that generated by civil aviation of china, are used to identify the responsive signal. Field test results indicate that this paper propose a targeted solution to the responsive signal’s identification of mode A/C. This technique improves accuracy and reliability of the responsive signal’s identification for mode A/C. And it has a great value in civil-aviation surveillance application, such as multilateration.
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Keywords:
- Airborne transponder /
- Mode A/C /
- Responsive signal /
- Multilateration /
- Cyclic coding
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