Low-noise amplifier

被引：0
作者：
Gulkov, V. B. [1 ]
Makarenko, A. S. [1 ]
机构：
[1] Natl Tech Univ Ukraine, Kiev Polytech Inst, Kiev, Ukraine
来源：
VISNYK NTUU KPI SERIIA-RADIOTEKHNIKA RADIOAPARATOBUDUVANNIA | 2012年 / 50期
关键词：
Low-noise amplifier; noise compensation; samples; the composite filter; noise reduction;
D O I：
暂无
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：
The mixture of signal and noise processing device is considered in this article. It contains two channels: the main channel (MC) contains the mixture of signal and noise, and compensation channel (CC) that extracts just a noise from the mixture. The feature of the processing circuit is that the mixture samples are formed by short impulses at the moments of passing signal through zero. Further antiphase noise is set in the channels, adder by which the noise is removed from mixture is set on the cannels output. Study of the described device was carried out for simulated AM signal and white Gaussian noise in simulation environment Matlab. The results are shown, that device reduces noise by 16 dB of power.
引用
收藏
页码：47 / 52
页数：6
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