A Study on the Channel Modeling of Slope Equalizer and Its Digital Implementation for Digital Radio Relay System

디지털 무선 전송장치를 위한 기울기 등화기의 채널 모델링 및 디지털 구현에 관한 연구

  • 서경환 (경남대학교 지식정보공학부 전자공학과)
  • Published : 2001.08.01

Abstract

In this paper, as one of countermeasure techniques for a frequency selective fading, a digital slope equalizer(DSE) for 64-QAM digital radio relay system is analyzed in terms of principle, channel modeling, and digital implementation. Also computer simulations have been performed for DSE with a complex 13-tap adaptive time domain equalizer chip. It is shown that about 4.5 dB improvement in system signature can be obtained at the channel edge, and a variety of simulated results are reviewed in view of DSE modeling limit, operating frequency, control coefficient, signal constellation, and system signature. Finally, the functions of DSE chip confirmed up to 61 MHz clock operation are illustrated.

Keywords

References

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