After the bandwidth and temperature, the remaining factor in determining the system noise is the effective source resistance.

讨论了带宽和温度以后，决定系统噪声的另一个因素就是等效源电阻。

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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.

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。

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In modern radar and communication system, phase noise of local oscillator (lo) becomes a vital factor of system performance.

在现代雷达和通讯系统中，本振相位噪声越来越成为决定系统性能的关键因素。

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