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JP2005134398A Noise measurement system and method 审中-公开
标题翻译：噪声测量系统和方法
公开(公告)号：JP2005134398A
公开(公告)日：2005-05-26
申请号：JP2004313708
申请日：2004-10-28
申请人： Agilent Technol Inc , アジレント・テクノロジーズ・インクAgilent Technologies, Inc.
发明人： TORIN SHIGETSUNE , WONG KENNETH H , BLACKHAM DAVID V
IPC分类号： G01R29/26
CPC分类号： G01R29/26
摘要： PROBLEM TO BE SOLVED: To provide an accurate noise measurement system independent of a plurality of frequency conversion stages.
SOLUTION: This noise measurement system 10 measuring noise inside a designated frequency band of an applied signal has: a frequency converter 12 frequency-converting the applied signal by an even-interval separation frequency group to supply a correspondence group of an intermediate frequency signal; a sampler 14 measuring the noise in at least two measurement bands inside each the intermediate frequency signal apart from each other at a frequency interval of an even-interval separation frequency; and a signal processor 16 determining noise power inside the frequency band of the applied signal on the basis of the noise measured by the sampler.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供独立于多个变频级的精确的噪声测量系统。解决方案：测量所施加的信号的指定频带内的噪声的噪声测量系统10具有：频率转换器12，通过偶数间隔分离频率组对所施加的信号进行频率转换，以提供中频的对应组信号; 采样器14，以偶数间隔分离频率的频率间隔测量每个中频信号内部的至少两个测量带中的噪声; 以及信号处理器16，基于由采样器测量的噪声来确定所施加的信号的频带内的噪声功率。版权所有（C）2005，JPO＆NCIPI

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