Programmable composite noise generator (P-CNG) as class A noise simulator and its application to opinion test on TV picture degradation

Motoshi Tanaka, Kei Sasajima, Hiroshi Inoue, Tasuku Takagi

    研究成果: Article査読

    2 被引用数 (Scopus)

    抄録

    We have recently developed a programmable composite noise generator (P-CNG) which can easily control noise parameters such as average power, time-based amplitude probability distribution (APD), crossing rate distribution, occurrence frequency distribution and burst duration. Two applications of the P-CNG are demonstrated to show its usefulness. For the first application. Middleton's Class A noise is simulated. A method of setting parameters for Class A noise is demonstrated. The APD of P-CNG output is in good agreement with that of true Class A noise. In the second application, the P-CNG is used for subjective evaluation test (opinion test) of TV picture degradation. Five simple composite noise models with two kinds of APD are used. Other parameters such as average power are kept constant. Experimental results show that the envelope and APD of composite noises do not greatly influence the subjective evaluation. Finally the capabilities of the P-CNG are shown.

    本文言語English
    ページ(範囲)1352-1359
    ページ数8
    ジャーナルIEICE Transactions on Communications
    E85-B
    7
    出版ステータスPublished - 2002 7月

    ASJC Scopus subject areas

    • ソフトウェア
    • コンピュータ ネットワークおよび通信
    • 電子工学および電気工学

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