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Measuring peak/average power ratio of the Zenith/AT&T DSC-HDTV signal with a vector signal analyzer

机译:使用矢量信号分析仪测量Zenith / AT&T DSC-HDTV信号的峰值/平均功率比

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摘要

The different power measurement techniques used for NTSC (peak envelope power) and HDTV (average power and peak-to-average power ratio) are described. A brief description of a digital data transmission system is included to show why the HDTV signal is noiselike in nature and how it can be measured. A new type of RF analyzer with the ability to statistically measure peak-to-average power ratio is presented. The Zenith/AT&T digital spectrum compatible high definition television (DSC-HDTV) data transmission system is currently one of the systems being evaluated for the consideration as a US broadcast standard. Examples of signal measurement for this system are provided.
机译:描述了用于NTSC(峰值包络功率)和HDTV(平均功率和峰均功率比)的不同功率测量技术。其中包括对数字数据传输系统的简要说明,以说明HDTV信号为何本质上像噪声一样,以及如何进行测量。提出了一种新型的射频分析仪,能够统计地测量峰均功率比。 Zenith / AT&T数字频谱兼容高清电视(DSC-HDTV)数据传输系统是目前正在评估中的考虑之一,以考虑作为美国广播标准。提供了此系统的信号测量示例。

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