Journal of the Korean Institute of Intelligent Systems (한국지능시스템학회논문지)

Korean Institute of Intelligent Systems (한국지능시스템학회)
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Generalized Sidelobe Canceler for TPMS Interference Cancellation

TPMS 간섭제거를 위한 Generalized Sidelobe Canceler

  • 박철 (조선대학교 대학원 첨단부품소재공학과) ;
  • 황석승 (조선대학교 공과대학 메카트로닉스공학과)
  • Received : 2012.07.12
  • Accepted : 2012.10.08
  • Published : 2012.10.25
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Abstract

A TPMS(Tire Pressure Monitoring System) is a wireless communication system designed to monitor the pressure and temperature of pneumatic tires of a vehicle. In order to provide the aid in protecting a driver, this system reports tire pressure information to the driver of the vehicle. Since the wireless communication technique should be employed to transmit the TPMS data from each tire to signal processing unit in the vehicle, it suffers from interference signals from external electrical or electronics equipments. In this paper, we propose the TPMS interference cancellation technique based on GSC(Generalized Sidelobe Canceler), which does not have only the excellent performance like MVDR(Minimum-Variance-Distortionless-Response) but also has the low computational complexity comparing with MVDR. The performance of interference suppression is conformed by computer simulation examples.

차량의 각 타이어에 부착된 센서에서 압력과 온도 등을 측정하여 측정된 데이터를 차량의 무선 수신기에 전송하여 디스플레이에 타이어의 상태를 표시하는 TPMS(Tire Pressure Monitoring System)는 차량의 운행 또는 정지 중에 타이어의 상태를 수시로 점검하여 운전자에게 타이어 상태정보를 제공하는 안전보조 장치이다. TPMS는 각 타이어에서 측정되는 데이터를 전송하기위해 무선통신을 이용하는데, 정확한 데이터 전송을 방해하는 외부 전기 및 전자장치에 의한 간섭이 존재할 수 있다. 본 논문에서는 정확한 데이터 전송에 영향을 주는 간섭을 제거하고 MVDR(Minimum-Variance Distortionless-Response) 보다 낮은 복잡도를 가지는 GSC(Generalized Sidelobe Canceler) 기반의 TPMS 간섭제거 방식을 제안한다. 컴퓨터 시뮬레이션을 통하여 본 논문에서 제안된 간섭제거 기술의 성능을 확인한다.

Keywords

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