放送波中継SFNの検討 : PSK-OFDM用回り込みキャンセラ

書誌事項

タイトル別名
  • A Study for Relay SFN : Coupling Canceler for PSK-OFDM
  • ホウソウハ チュウケイ SFN ノ ケントウ PSK-OFDMヨウ マワリ コミ キャンセラ

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In a relay station of SFN (Single Frequency Networks) for DTB (Digital Terrestrial Broadcasting), a coupling effect between transmitting antenna and receiving antenna should be reduced to an allowable level in order to avoid distortion and oscillation problem. Therefore, we have already made a basic report of the coupling canceler using reference signals such as SP (Scattered Pilot) contained in QAM-OFDM signals. In this paper, we propose a method of calculating transfer function of the coupling paths for the PSK-OFDM modulation schemes without SP, and applied the proposal method to the coupling canceler on some computer simulations. The simulations have shown the usefulness of the proposed method.

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