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Design of Interrogator for Airspace Surveillance in Multilateration Systems

항공용 다변측정 감시시스템 적용을 위한 질문기 설계

  • Received : 2015.04.09
  • Accepted : 2015.04.27
  • Published : 2015.04.30

Abstract

Multilateration systems are used to provide the position of aircraft in flight or on airport runways. In the multilateration systems, the interrogator is an important transmitter that used to interrogate the airplanes with appropriately scenario in surveillance airspace. Whisper-Shout interrogation sequence, which is one of the key functions of the interrogator, can control airport traffic density when intruder airplanes are coming into the surveillance airspace. Therefore collision chance between airplanes could be reduced and also get highly accurate location of incoming airplane in multilateration systems. In this paper, we developed the interrogator that allows it to transmit Mode A/C and Mode S interrogations which is similar to existing secondary surveillance radar. With appropriately controlled Whisper-Shout sequence in the interrogator, the multilateration systems can avoid synchronous garbling and FRUIT phenomenons caused by receiving multiple responses from a number of airplanes.

항공용 다변측정 감시시스템은 비행 중 또는 활주로에서 항공기 위치를 제공하는데 사용된다. 항공용 다변측정 감시시스템에서, 질문기는 감시공역에서 항공기에게 적절한 시나리오로 질문을 수행하는데 사용되는 중요한 송신기이다. 질문기의 핵심기능 중 하나인 위스퍼-샤웃 시퀀스는 침입 항공기가 감시공역으로 진입하는 경우 트래픽 밀도를 제어할 수 있다. 따라서 항공용 다변측정 감시스템에서 항공기 간 충돌 가능성을 감소시키고 진입 항공기에 대해 매우 정확한 위치를 구할 수 있게 한다. 본 논문에서는 기존의 2차 감시레이더와 동일한 Mode A/C 질문과 Mode S 질문을 송신하는 질문기를 설계하였다. 질문기에서 적절하게 제어되는 위스퍼-샤웃 질문 시퀀스로, 다변측정 감시시스템은 다수의 항공기로부터 다중 응답 수신에 의해 야기된 동기가블 및 FRUIT현상을 방지할 수 있다.

Keywords

References

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Cited by

  1. 다중 센서 인터페이스 시스템 설계 및 구현 vol.19, pp.6, 2015, https://doi.org/10.12673/jant.2015.19.6.515
  2. 능동적 공역확보를 위한 다변측정 감시시스템용 질문기 vol.21, pp.2, 2015, https://doi.org/10.12673/jant.2017.21.2.179