noise muffler
... 噪声水平：noise level 噪声衰减器，消声器：noise muffler 噪声室：noise room ...
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本文讨论了常用的噪声系数测试方法—Y因子法中高频及中频衰减器本身失配和测试系统中其它部分的影响所造成的测试误差。
This paper discussed the error in the measurement of noise figure—The method of Y factor , The error is caused by mismatch of RF attenuater and IF attenuater and the others in the measurement system.
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