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2022 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI)最新文献

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SASIMI: Evaluation Board for EM Information Leakage from Large Scale Cryptographic Circuits 大规模密码电路电磁信息泄漏评估委员会
Daisuke Fujimoto, Youngwoo Kim, Y. Hayashi, N. Homma, Masanori Hashimoto, Takashi Sato, J. Danger
In this paper, we propose a common evaluation board(Side-channel Attack Standard IMplementation and eval-uatIon board: SASIMI) for the threat of acquiring information leaked from electromagnetic(EM) noise generated by devices. To prevent this threat, it is necessary to implement circuits that do not leak secret information, like a secret key, via EM side-channel, and conduct actual measurement and evaluation environment, which makes it difficult for a third party to reproduce the results. However, since captured EM activity is affected by the surrounding EM noise, the evaluation results may vary depending on the evaluation environment. The proposed evaluation board can implement various cryp-tographic circuits. The IC must be capable of reconfiguring logic and implementing large-scale cryptographic blocks such as post quantum cryptography. To reduce the influence of environmental EM noise, an independent power supply network and measurement port are provided for the IC to be evaluated thus improving the measurement reproducibility. In order to evaluate the performance of the SASIMI board, this paper proposes an index to evaluate the strength of the information of the secret key contained in the power supply noise. This index is to find the value of the resistance to be inserted into the power supply network of the prototype board. Measurement results show that the simple amplitude value of EM noise and the intensity of information leakage do not necessarily coincide.
在本文中,我们提出了一种通用的评估板(Side-channel Attack Standard IMplementation and evaluation board: SASIMI),用于设备产生的电磁噪声泄漏获取信息的威胁。为了防止这种威胁,有必要通过EM侧信道实现不泄露秘密信息(如秘密密钥)的电路,并进行实际的测量和评估环境,使第三方难以复制结果。然而,由于捕获的电磁活动受到周围电磁噪声的影响,评估结果可能会因评估环境而异。所提出的评估板可以实现各种密码电路。集成电路必须能够重新配置逻辑并实现大规模加密块,如后量子加密。为了减少环境电磁噪声的影响,为被评估集成电路提供了独立的供电网络和测量端口,从而提高了测量的再现性。为了评价SASIMI板的性能,本文提出了一种评价电源噪声中包含的密钥信息强度的指标。这个指标是找到原型板的供电网络中要插入的电阻值。测量结果表明,电磁噪声的简单幅度值与信息泄漏强度并不一定吻合。
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引用次数: 1
Improving Spectrum Sharing Interference Criteria: A Survey of a Critical Need for Measurements 改进频谱共享干扰标准:对测量的关键需求的调查
A. Clegg, Sarah A. Seguin, C. Baylis, Austin Egbert, R. Marks
As radio spectrum becomes more congested and more valuable, an increasing number of potential conflicts is occurring between or among disparate systems and services. Such potential conflicts can be related to systems sharing the same band or even the same channel. Because of unwanted emissions (which include out-of-band emissions and spurious emissions), potential conflicts can arise in immediately adjacent bands, and even bands that are far removed from the operating frequencies of the potentially interfering system. We refer to these issues as potential conflicts, because whether a conflict does or does not exist in reality is often far from clear. Such claims are typically based on paper studies that combine interference criteria for a particular service, propagation models, deployment models, usage assumptions, and other factors. The inputs, assumptions, and even the applicability of any or all of these specific factors are debatable, with the potential interferer relying on liberal interpretations, and the potential victim assuming conservative parameters. In the end, often the potential interfering operator concludes with certainty that no harmful interference will occur, and the potential victim operator concludes with certainty that harmful interference will occur. The regulator, which is often understaffed with appropriate resources to perform its own detailed technical analyses, must make a judgment call, which is usually based on a combination of policy goals, politics, and the “loudest voice.” Sometimes that judgment call results in overly restrictive requirements that causes inefficient spectrum use, or policies that may in fact lead to harmful interference in actual deployments. In this paper, we make an argument that the current situation could be significantly improved if one or more independent third-party “co-existence labs” were established that can help provide neutral input to regulators on the compatibility between various systems and services in the radio spectrum.
随着无线电频谱变得越来越拥挤和越来越有价值,越来越多的潜在冲突正在不同系统和服务之间或之间发生。这种潜在的冲突可能与共享相同频带甚至相同信道的系统有关。由于不需要的发射(包括带外发射和杂散发射),潜在的冲突可能出现在紧邻的频段,甚至是远离潜在干扰系统的工作频率的频段。我们将这些问题称为潜在冲突,因为现实中是否存在冲突往往远不清楚。此类声明通常基于结合了特定服务的干扰标准、传播模型、部署模型、使用假设和其他因素的论文研究。输入,假设,甚至任何或所有这些特定因素的适用性都是有争议的,潜在的干扰依赖于自由的解释,而潜在的受害者假设保守的参数。最后,往往潜在的干扰者肯定不会发生有害干扰,而潜在的受害者肯定会发生有害干扰。监管机构往往人手不足,没有适当的资源来进行自己的详细技术分析,它必须做出判断,这通常是基于政策目标、政治和“最响亮的声音”的综合考虑。有时,这种判断调用会导致过于严格的需求,从而导致频谱使用效率低下,或者在实际部署中实际上可能导致有害干扰的策略。在本文中,我们提出了一个论点,即如果建立一个或多个独立的第三方“共存实验室”,可以帮助向监管机构提供关于无线电频谱中各种系统和服务之间兼容性的中立输入,那么目前的情况可以得到显著改善。
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引用次数: 2
Use of IEC E1 HEMP Standards to Determine the Coupled Levels and Impacts of Induced Currents to Power Substation Control House Yard Cables 使用IEC E1 HEMP标准确定感应电流对变电站控制室场电缆的耦合水平和影响
W. Radasky
This paper reviews the coupling of El HEMP fields to buried control cables that are connected to protection relays in power substation control houses. This review is performed by examining the publications of the International Electrotechnical Commission (IEC) and the work of IEC Subcommittee 77C, which deals with high power EM phenomena.
本文综述了在变电所控制室内连接保护继电器的地埋控制电缆与电励磁场的耦合。这项审查是通过审查国际电工委员会(IEC)的出版物和IEC第77C小组委员会的工作来进行的,该小组委员会负责处理高功率电磁现象。
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引用次数: 0
Passive cross talk cancellation (XTC) techniques to enable system miniaturization 无源串扰消除(XTC)技术,使系统小型化
Steve Christianson, J. Drew, Ranjul Balakrishnan, Rebecca Castro Artavia, Esteban Torres Pineda
The accelerating demands of end-users and competing requirements of higher-bandwidth, smaller formfactor memory bus solutions require nonlinear design implementation to continue meeting the requirements of silicon architecture. Passive crosstalk and ISI compensation techniques provide a compelling means for enabling nextgeneration memory solutions as they are free or low-cost, no- or low-power, and consume minimal real estate. This document details several of the most effective techniques that can be applied on high speed memory buses, each of which yields performance improvements of one or more speed bins and can be placed modularly alongside modern equalization and active crosstalk cancellation schemes.
终端用户不断增长的需求,以及对更高带宽、更小尺寸内存总线解决方案的竞争需求,需要非线性设计实现来继续满足硅架构的要求。无源串扰和ISI补偿技术为实现下一代存储器解决方案提供了一种引人注目的手段,因为它们是免费的或低成本的,无功耗或低功耗的,并且消耗最小的空间。本文档详细介绍了几种可以应用于高速存储器总线的最有效技术,每种技术都可以提高一个或多个速度箱的性能,并且可以模块化地与现代均衡和主动串扰消除方案一起放置。
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引用次数: 0
EMI Spectral Aggregation of Modulation Schemes in a lab-based DC Microgrid 基于实验室的直流微电网调制方案的电磁干扰频谱聚合
A. Pena-Quintal, A. Khilnani, L. Sandrolini, M. Sumner, David W. P. Thomas, S. Greedy
DC Microgrid research has developed in the recent years following the increasing integration of power electronic based switching devices at the point of common coupling in DC grids. This has led to electromagnetic interference problems caused by the spectral aggregation of conducted emissions in the low-frequency range (2–150 kHz). To investigate this, a framework for understanding spectral aggregation resulting from the multiple switching harmonics from the interconnected DC grid devices is analysed. In this work, three modulation techniques are applied to identical & parallel connected DC/DC converters forming a lab-based DC grid. The harmonics are then analysed for spectral aggregation using an EMI receiver. This provides insights into the spectral aggregation of conducted emissions in the low-frequency range to promote electromagnetic compatibility and further facilitate a possible framework for standardisation of DC power quality.
近年来,随着电力电子开关设备在直流电网共耦合点的集成化程度的提高,直流微电网的研究得到了发展。这导致了在低频范围内(2 - 150khz)传导发射的频谱聚集引起的电磁干扰问题。为了研究这一点,分析了一个理解由互联直流电网设备的多重开关谐波引起的频谱聚集的框架。在这项工作中,三种调制技术应用于相同和并联的DC/DC转换器,形成基于实验室的直流网格。然后使用EMI接收器分析谐波以进行频谱聚合。这提供了对低频范围内传导发射的频谱聚合的见解,以促进电磁兼容性,并进一步促进直流电源质量标准化的可能框架。
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引用次数: 0
Experimental Studies of E1 HEMP Coupling and Propagation Effects for Power Substation Yard Cables 变电所场内电缆E1 - HEMP耦合及传播效应实验研究
E. Savage, W. Radasky
Experimental time domain measurements of the E1 HEMP response of power substation yard cables are presented. These look at how velocity differences and attenuation affect the E1 HEMP driven pulses on such cables. One test looks at the effect on the external cable signal due to being near the ground, and the other looks at the effects inside a shielded yard cable.
介绍了变电所场站电缆E1 HEMP响应的实验时域测量结果。这些研究着眼于速度差和衰减如何影响E1 HEMP驱动的脉冲在这些电缆上。一项测试着眼于由于靠近地面而对外部电缆信号的影响,另一项测试着眼于屏蔽码电缆内部的影响。
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引用次数: 1
EMI Control for a Multi-cell Battery 多节电池的电磁干扰控制
Yongjun Zhang, Chenming Zhou, J. Srednicki
Electromagnetic emissions from multi-cell batteries were previously observed to cause electromagnetic interference (EMI) that can cause nearby electronic safety and health devices to malfunction. While shielding and filtering are the two most common EMI mitigation methods, both have pros and cons and are not applicable in all situations. In this paper, we propose an innovative approach for mitigating EMI emissions from a multicell battery. The new approach takes advantage of the coherent nature of the currents in battery cells, and their structural symmetry found in certain battery packs, and then rearranges them into magnetic mutual cancellation loops so that the magnetic fields produced from the battery cells are cancelling each other. Using an electronic device typically used in underground coal mines as an example, the proposed approach can effectively reduce the EMI from the device by 25dB by simply rearranging the position of the battery cells.
以前观察到,多芯电池的电磁发射会造成电磁干扰(EMI),从而导致附近的电子安全和健康设备发生故障。虽然屏蔽和滤波是两种最常见的EMI缓解方法,但两者都有优缺点,并不是适用于所有情况。在本文中,我们提出了一种创新的方法来减轻多电池的电磁干扰排放。这种新方法利用了电池中电流的相干性,以及某些电池组中发现的结构对称性,然后将它们重新排列成磁性相互抵消回路,从而使电池产生的磁场相互抵消。以煤矿井下使用的电子设备为例,通过简单地重新排列电池单元的位置,该方法可以有效地将设备的电磁干扰降低25dB。
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引用次数: 0
Superposition of Transient Switching Currents for Non-Linear Devices 非线性器件瞬态开关电流的叠加
A. Matthee, N. Moonen, F. Leferink
Increased power electronics converters on micro-grid supplies result in large inrush currents which are not appropriately limited by present-day standards, especially devices commonly switched in large clusters. The currents drawn by switching large clusters, such as LED lights, or systems domi-nated by power electronics converters are shown by measurement as well as simulations to have worrying trends for electromagnetic compatibility. Superposition of currents from many low power devices, especially in low inertia micro-grids, can significantly impact the stability of the supply and may cause interference or high probability of complete grid failure.
微电网电源上增加的电力电子转换器会产生大的涌流,这在目前的标准中没有适当的限制,特别是通常在大集群中切换的设备。通过测量和模拟显示,开关大型集群(如LED灯)或由电力电子转换器主导的系统所产生的电流在电磁兼容性方面具有令人担忧的趋势。来自许多低功率器件的电流叠加,特别是在低惯性微电网中,会严重影响供电的稳定性,并可能造成干扰或电网完全故障的高概率。
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引用次数: 1
Application of Continued Fractions to Decoupling Capacitor Modeling in Multilayered Printed Circuits 连分数法在多层印刷电路中去耦电容建模中的应用
I. Erdin
A continued fraction-based algorithm is developed for the analytical characterization of decoupling capacitors in multilayered printed circuit stackups. The proposed technique depends on modeling a stack of resonant cavities in the form of finite continued fractions. Mathematical models for a variety of configurations are developed including a capacitor and integrated circuit (IC) being (1) on the same side, (2) on the opposite sides and (3) on both sides of a printed circuit board (PCB). The frequency domain responses of the proposed models are observed in good agreement with data from numerical electromagnetic (EM) simulations, which validate the accuracy of the proposed algorithm. The developed models are intended for a quick and practical power integrity (PI) analysis of printed circuits with no limitation on the number of layers.
提出了一种基于连续分数的多层印刷电路中去耦电容分析表征算法。所提出的技术依赖于以有限连分数的形式对一堆谐振腔进行建模。开发了各种配置的数学模型,包括电容器和集成电路(IC)(1)在印刷电路板(PCB)的同一侧,(2)在相反的一侧和(3)在两侧。模型的频域响应与数值电磁仿真数据吻合较好,验证了算法的准确性。所开发的模型旨在对印刷电路进行快速实用的功率完整性(PI)分析,不受层数的限制。
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引用次数: 0
Research and Application of 45G Antenna Weight Optimization Based on Heuristic and Reinforcement Learning 基于启发式和强化学习的45G天线重量优化研究与应用
Chenxi Zhang, Feng Gao, Wentao Zhu, Yuan Wu
Currently, the main optimization strategies for 45G network antenna weight are to use manual or simple automated method to adjust weight parameters, however, the above two traditional ways have problems such as high maintenance cost, low optimization efficiency and large errors. Therefore, for the purpose of network production efficiency improvement, optimized maintenance cost reduction and achieving the goals of accurate, rapid, efficient and intelligent optimization of antenna weight, the paper focused on 45G massive multiple-input multiple-output antenna weight self-optimization methods based on artificial intelligence technology and massive multiple-input multiple-output array antenna technology. Meanwhile, network data were analyzed in depth and put forward the theoretical research idea by applying reinforcement learning and heuristic learning as the core strategy to drive the weight self-optimization, which is helpful to provide references for the promotion of self-optimization adjustment technology and the evolution of digital intelligence in the antenna field.
目前45G网络天线重量的优化策略主要是采用手动或简单的自动化方法调整重量参数,但上述两种传统方法存在维护成本高、优化效率低、误差大等问题。因此,为了提高网络生产效率,降低优化维护成本,实现天线重量精确、快速、高效、智能优化的目标,本文重点研究了基于人工智能技术和大规模多输入多输出阵列天线技术的45G海量多输入多输出天线重量自优化方法。同时,对网络数据进行深入分析,提出了以强化学习和启发式学习为核心策略驱动权值自优化的理论研究思路,有助于为天线领域自优化调整技术的推广和数字智能的演进提供参考。
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引用次数: 1
期刊
2022 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI)
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