Autocorrelation Analysis and Near-Field Localization of the Radiating Sources With Cyclostationary Properties

被引：10

作者：

Kuznetsov, Yury ^{[1
]}

Baev, Andrey ^{[1
]}

Konovalyuk, Maxim ^{[1
]}

Gorbunova, Anastasia ^{[1
]}

Russer, Johannes A. ^{[2
,3
]}

机构：

[1] Natl Res Univ, Moscow Aviat Inst, Theoret Radio Engn Dept, Moscow 125993, Russia

[2] Tech Univ Munich, Arcisstr 21, D-80333 Munich, Germany

[3] eV Technol, F-14000 Caen, France

来源：

IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY | 2020年 / 62卷 / 05期

关键词：

Transmission line measurements; Stochastic processes; Time-domain analysis; Random processes; Probes; Correlation; Cyclostationarity; near-field scan; radiated emissions; spatial-time source localization;

D O I：

10.1109/TEMC.2019.2946748

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：

Stochastic electromagnetic fields caused by the data transferring signals along the printed circuit boards are potentially harmful interference sources for modern digital electronic devices. The characterization of the near-field electromagnetic emissions from the electronic device in time domain was implemented by real-time digital oscilloscope in conjunction with the sequential scanning system of the near-field probes. Excluding of the periodic sample mean function reveals the hidden cyclostationarity of the data transferring process measured by the near-field scanning system. In this article, the quantitative autocorrelation analysis of the hidden cyclostationary properties of the random nonperiodic data sequences is presented. The time-domain evolution of the autocovariance cross sections estimated at each scanning point were exploited for spatial-time localization of the transmission line.

引用

页码：2186 / 2195

页数：10

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