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Interference Cancellation System to Prevent the Oscillation of the Wireless Communication System using the Same Frequency

동일 주파수 무선통신 시스템의 발진방지를 위한 간섭잡음제거기

  • Published : 2003.03.01

Abstract

In this paper, the interference cancellation system, which is used to cancel the feedback signal in the wireless communication system with the same frequency, is studied. The time varying feedback signal generated from transmitter antenna to receiver antenna reduces the performance of the receiver system. the interference cancellation system using adaptive feedback method(AF-ICS) is suggested to prevent the oscillation of the receiver system and maintain the maximum output power of the power amplifier by the reduction of time-varying feedback signal and also this paper conforms that the oscillation disappears from the output signal by cancellation of the feedback signal and the total output power is satisfied the system specification.

Keywords

References

  1. 전기전자재료학회지 v.11 no.4 EMC/EMI기본 측정량과 측정시설 김기채;이광식;박원주;이동인
  2. Antennas and Propagation, 4-7 1995, Ninth International Conference on (Conf. Publ. No. 407) v.1 Antenna isolation measurements for on-frequency radio repeaters W. T. Slingsby;J. P. McGeehan
  3. Vehicular Technology Conference, 1992, IEEE 42nd A high gain cell enhancer W. T. Slingsby;J. P. McGeehan
  4. Vehicular Technology Conference, 1988, IEEE 38th Development and application of a cellular repeater Elliott H. Drucker
  5. Microwave Conference Proceedings, 1997, APMC '97, 1997 Asia-Pacific v.2 On application of cellular or PCS off-air on-frequency repeaters T. N. C. Wang
  6. Interference Mitigation Theory and Application Rabindra N. Ghose
  7. Adaptive Signal Processing Bernard Widrow;Samuel D. Stearns
  8. 전기전자재료학회지 v.13 no.9 안테나 기술 동향 및 개선점 이병제
  9. 전기전자재료학회지 v.13 no.7 표면 탄성파(SAW) 필터 이론 박용욱
  10. 한국특허 1019990020088(출원번호) 이중 편파 안테나를 이용한 중계기의 간섭제거장치 구관영
  11. 한국특허 100226360000 인접송수신 안테나간의 무선주파수 간섭제거시스템 고성선
  12. Microwave Symposium Digest, 1997, IEEE MTT-S International v.3 Analysis and design of feedforward power amplifier Sang-Gee Kang;Il-Kyoo Lee;Ki-Suk Yoo