Loop Interference Cancellation Method for Relay Stations in Single Frequency Networks

Loop Interference Cancellation Method for Relay Stations in Single Frequency Networks
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单频网络中继站环路干扰消除方法

DOI：
10.3169/itej.54.1567
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发表时间：
2000
期刊：
The Journal of The Institute of Image Information and Television Engineers
影响因子：
--
通讯作者：
M. Sasaki
M. Sasaki
中科院分区：
--
文献类型：
--
作者：
K. Imamura;H. Hamazumi;K. Shibuya;M. Sasaki

文献摘要

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We propose a method of cancelling the coupling loop interference at a relay station in a Single Frequency Network (SFN) in Digital Terrestrial Television Broadcasting (DTTB) using an Orthogonal Frequency Division Multiplexing (OFDM) signal. This loop from a transmitting antenna to a receiving antenna can distort and oscillatethe signal. The loop is cancelled by a replica of it generated by a frequency-domain adaptive cancellation algorithm . The method covers both QAM-OFDM (Quadrature Amplitude Modulation-OFDM) and PSK-OFDM (Phase Shift Keying-OFDM). Computer simulation demonstrated that this method effectively cancels the loop. キー ワー ド:地 上デ ジタル放送,ISDB-T,OFDM,回 り込 みキャ ンセラ,SFN ,放 送波中継