A new method for high-sensitivity noise measurements

被引：19
|
作者：
Ciofi, C [1 ]
Crupi, F
Pace, C
机构：
[1] Dipartimento Fis Mat & Tecnol, Messina, Italy
[2] INFM, Messina, Italy
来源：
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 2002年 / 51卷 / 04期
关键词：
correlation; noise measurement; spectral analysis; time domain analysis;
D O I：
10.1109/TIM.2002.803080
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A new method for high-sensitivity noise measurement, based on the elaboration in the time domain of the signals coming from two identical amplifiers, is presented in this paper. The most important advantage of this method, which in most cases allows obtaining an equivalent background noise 30 dB below that of the amplifiers which are used in the measurement chain, lies in its simplicity and in the fact that it does not depend on the method used for the estimation of the noise spectra.
引用
收藏
页码：656 / 659
页数：4
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