著者

伊藤 純一 田中 正人 藤田 昭一 北地 西峰

出版者

一般社団法人映像情報メディア学会

雑誌

テレビジョン学会技術報告 (ISSN:03864227)

巻号頁・発行日

vol.20, no.29, pp.25-30, 1996-05-23

被引用文献数

1

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Digital modulation methods such as QPSK and QAM have been studied for efficient transmission of digital signal such as MPEG through analog lines. Among such modulations, 64QAM has been getting attention for building CATV system because of its effective transmission capability. In order to implement 64QAM transmission system for consumer tuner, biggest obstacle could be phase noise. In this paper, we assume phase noise spectrum of tuner and studied the influence of these spectra to BER of 64QAM system both theoretically and experiment. In conclusion, we obtain a method to astimate the BER based on the phase noise spectra condition.