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    实时信噪比的实现与校准
    Realization and Calibration of Real Time S/N
    Received:May 21, 2007  Revised:September 20, 2007
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    中文摘要:
          用软件工具包的噪声函数,结合AD/DA技术,对信号进行加噪.并用动态信号分析仪和功率计校准输出信噪比.
    英文摘要:
          Using the noise function of the software package and combining with the AD/DA technology, the signal is added a noise in. Then the output S/N is calibrated DA with the dynamic signal analizer and power meter.
    王继红  江传华
    中船重工集团第七二二所,湖北武汉430079
    中文关键词:  噪声函数  AD/DA  信噪比  谱密度
    英文关键词:noise function  AD/DA  S/N  spectrum intensity
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