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2018 IEEE Conference of Russian Young Researchers in Electrical and Electronic Engineering (EIConRus)最新文献

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Studying of thin film growth and annealing processes on early stage by computer simulation 用计算机模拟研究了薄膜的早期生长和退火过程
V. A. Tupik, V. Margolin, Chu Trong Su
Computer simulation of thin film growth and annealing processes on early stage at atomic and molecular level is one of the most important stages to study and increase high quality of obtained thin films or coatings. And in this paper, the computer simulation will be presented at different conditions to show which influence facts and their contribution on the quality of obtained films based on built models and algorithms. Basic numerical methods used in this work is a combination of two methods based on the specifics of thin film growth, in the random and self organization processes, we use Monte-Carlo method with a choice of number of particles and quasi-Newton method with the definition of the direction of particle's motion. Based on the kind of on-going process and deposition (or sputtering) materials, various sub models are built.
在原子和分子水平上对薄膜生长和退火过程进行早期计算机模拟是研究和提高薄膜或涂层质量的重要步骤之一。在本文中,计算机模拟将在不同的条件下呈现,以显示哪些影响因素及其对所获得的薄膜质量的贡献基于所建立的模型和算法。本文采用的基本数值方法是结合薄膜生长的具体情况,在随机和自组织过程中,我们采用蒙特卡罗方法选择粒子数量和准牛顿方法定义粒子的运动方向。基于正在进行的工艺和沉积(或溅射)材料的类型,建立了各种子模型。
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引用次数: 3
Dependence of HV MOS transistor I-V characteristics from total ionizing dose effects 高压MOS晶体管I-V特性与总电离剂量效应的关系
A. Nagornov, V. Timoshenkov
Theoretical and experimental research of total ionizing dose (TID) effects on high voltage (HV) MOS transistor I-V characteristics are presented. MOS transistors, manufactured in 2 different Bipolar-CMOS-DMOS (BCD) technological processes, were used in the research. HV MOS are used for power management ICs undergoing harsh radiation. Thus, devices underwent radiation to various TID levels up to 105 krad. The obtained results allowed to modify the SPICE models of transistors taking into account the changes of their characteristics. As the result, it will be possible to evaluate the effects of TID on power management IC's functional characteristics and increase their reliability in future. The results of the study show that BCD 0,5 um has better radiation resistance than BCD 1 um, but breakdown voltage of BCD 1 um is higher than that of BCD 0,5 um.
本文对总电离剂量(TID)对高压MOS晶体管I-V特性的影响进行了理论和实验研究。采用两种不同的双极- cmos - dmos (BCD)工艺制造MOS晶体管。高压MOS用于承受强辐射的电源管理ic。因此,设备接受了各种TID水平的辐射,最高可达105克拉。所得结果允许修改晶体管的SPICE模型,以考虑其特性的变化。因此,可以评估TID对电源管理IC功能特性的影响,并在未来提高其可靠性。研究结果表明,BCD 0.5 um的耐辐射性能优于BCD 1 um,但BCD 1 um的击穿电压高于BCD 0.5 um。
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引用次数: 0
Development of ground penetrating radar system 探地雷达系统的发展
Nikolay I. Tulenkov, V. Veremyev
In the report there is the review conducted with the subsequent selection of the method from the current processing algorithms with further analysis of revealing their advantages over the other signal processing methods. As well as there is an example of the implementation of a ground penetrating radar, that is a promising direction in this field. The research into the differences between using narrow-band signal and UWB allows us to understand during the implementation of the UWB radar, when we can use the traditional theory of radar detection, and when it is necessary to look for new methods.
在报告中进行了审查,随后从当前的处理算法中选择了该方法,并进一步分析了其相对于其他信号处理方法的优势。此外,还有一个实施探地雷达的例子,这是该领域的一个有前途的方向。通过对窄带信号与超宽频的差异研究,可以让我们了解在超宽频雷达的实现过程中,什么时候可以使用传统的雷达探测理论,什么时候需要寻找新的方法。
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引用次数: 1
Development of intelligent street lighting services model based on LoRa technology 基于LoRa技术的智能路灯服务模型开发
Mohammed Saleh Ali Muthanna, Mohammed Manea Ahmed Muthanna, A. Khakimov, A. Muthanna
The Internet of things brings to life a new set of services that can be deployed on the mobile network operator and offered to the end user, for example, services such as: tactile Internet, augmented reality, virtual reality, medical networks, weather forecasting, smart homes and smart cities, completely automated cities with smart self-learning algorithms for managing everything. This paper considers the possibility of implementing services of the “Smart City” concept. Based on the experience of other cities, we can conclude that the most interesting and popular will be the implementation of intelligent street lighting, that allows the municipality to save budget funds, spent on street lighting in the city. For implementing this service, using a standardized wireless technology for building a physical network and a unified service model, in future it will be possible with minimal investment to increase the number of services, adding, for example, air pollution analysis, or “smart” waste containers. In this paper we analyze wireless technologies with low power consumption and long range. Based on the analysis was chosen the best technology, which can be used in smart city to provide a “smart street lighting” service. In results model for providing “smart street lighting” service was developed, which includes equipment, the scheme of the overall network organization, as well as its logical implementation in a unified service model, and also in this work we tested the network segment built using the selected wireless technology LoRa.
物联网带来了一系列新的服务,这些服务可以部署在移动网络运营商上,并提供给最终用户,例如:触觉互联网、增强现实、虚拟现实、医疗网络、天气预报、智能家居和智能城市等服务,以及具有智能自我学习算法的完全自动化城市,用于管理一切。本文考虑了实现“智慧城市”概念服务的可能性。根据其他城市的经验,我们可以得出结论,最有趣和最受欢迎的将是智能街道照明的实施,这将使市政当局节省预算资金,用于城市的街道照明。为了实现这项服务,使用标准化的无线技术来构建物理网络和统一的服务模型,将来可以以最小的投资增加服务数量,例如增加空气污染分析或“智能”废物容器。本文分析了低功耗、远距离的无线通信技术。在分析的基础上选择了最好的技术,可以在智慧城市中使用,提供“智慧街道照明”服务。结果建立了“智慧路灯”服务的模型,包括设备、整体网络组织方案及其在统一服务模型中的逻辑实现,并对采用所选无线技术LoRa构建的网段进行了测试。
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引用次数: 19
Adaptive control of a multi-robot system for transportation of large-sized objects based on reinforcement learning 基于强化学习的大型物体运输多机器人系统自适应控制
S. Manko, S. Diane, Aleksey E. Krivoshatskiy, I. D. Margolin, Evgeniya A. Slepynina
This paper describes models and algorithms for intelligent control of a group of autonomous mobile robots, which perform large-sized object transportation in a complex environment. The proposed models allow the multi-robot system to reach its target position while avoiding obstacles and maintaining object orientation with coordinated motion of several robots. We use neural based Q-learning to provide robots adaptability to unknown environments. The inputs of the learning subsystem are 2d-map data collected during system operation and target misalignments of multi-robot system. The primary output is a control decision with a maximum value of estimated efficiency. Experimental results presented in the paper fully confirm the reliability of the proposed approach.
本文介绍了一组在复杂环境下进行大型物体运输的自主移动机器人的智能控制模型和算法。所提出的模型允许多机器人系统在避开障碍物的同时到达目标位置,并通过多个机器人的协调运动保持物体的方向。我们使用基于神经的q学习来提供机器人对未知环境的适应性。学习子系统的输入是在系统运行过程中收集的二维地图数据和多机器人系统的目标错位。主要输出是一个具有最大估计效率值的控制决策。实验结果充分证明了该方法的可靠性。
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引用次数: 12
Recurrent mechanism developments in the data-flow computer architecture 数据流计算机体系结构中循环机制的发展
Yury Shikunov, Yury Stepchenkov, D. Khilko
This paper covers non-conventional recurrent data-flow architecture, its features, and implementation aspects. Recurrence — the main feature of the new architecture efficiently solves data redundancy problem, typical for data-flow architectures while increasing performance. Conventional recurrence implementation has an overhead of configuration operand insertion that provides required functional fields (tags). Functional capabilities expansion of the architecture mechanism implementing this feature resulted in further efficiency by eliminating said overhead in some instances. We cover enhancements implemented in multicore recurrent data-flow architecture, designed to increase the versatility of recurrent computational process utilization. We compare Viterbi algorithm implementations with and without enhancements.
本文涵盖了非常规的循环数据流体系结构,它的特点和实现方面。递归——新架构的主要特点是有效地解决了数据流架构的数据冗余问题,同时提高了性能。传统的递归实现需要配置操作数插入,以提供所需的功能字段(标签)。通过在某些情况下消除上述开销,实现此特性的体系结构机制的功能能力扩展带来了进一步的效率。我们介绍了在多核循环数据流架构中实现的增强功能,旨在增加循环计算过程利用率的多功能性。我们比较了有增强和没有增强的Viterbi算法实现。
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引用次数: 2
Encoders for flash analog-to-digital converters 用于flash模数转换器的编码器
D. Budanov, M. Pilipko, D. Morozov
Analog-to-digital converters (ADC) are used in modern high-performance telecommunication systems. The fastest ADC is based on the flash architecture. The flash ADC speed is limited by two factors. The first one is the comparator response time in the input analog part of ADC. The second factor is the delay time of the encoder. The encoder converts the thermometer code into the straight binary code. In this paper, design of encoder circuits based on CMOS technology is considered. New encoder circuits with reduced delay are proposed. Comparative analysis of encoder main characteristics based on the circuit simulation is presented.
模数转换器(ADC)在现代高性能通信系统中得到广泛应用。最快的ADC是基于flash架构的。闪存ADC的速度受到两个因素的限制。第一个是ADC输入模拟部分的比较器响应时间。第二个因素是编码器的延迟时间。编码器将温度计代码转换为直接二进制代码。本文研究了基于CMOS技术的编码器电路设计。提出了一种具有较低时延的编码器电路。在电路仿真的基础上,对编码器的主要特性进行了对比分析。
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引用次数: 10
Determining location of gateways in two-level data transfer networks in distributed information control systems 分布式信息控制系统中二级数据传输网络中网关位置的确定
Mihail N. Yokhin, M. M. Stepanov
The paper presents an algorithm to determine the location of two-channel gateways in two-level network to reduce response time of second-level network. To evaluate response time in second-level network with bus topology an integer functions are proposed. The algorithm is based on construction of approximation function by three special points or using the least squares method. It's shown for tree topology that construction of approximation function using three special points must be preceded by finding the numeration order of tree edges such that all edges corresponding to optimal values of the integer functions have adjacent numbers. The paper shows that in order to numerate edges in such a way a special condition based on the Hamiltonian cycle must be satisfied. If the condition is not hold the paper propose sequential procedure consisting of several steps of edges renumbering and local optimal values of approximation functions subset determination.
提出了一种在二级网络中确定双通道网关位置的算法,以减少二级网络的响应时间。为了评估具有总线拓扑的二级网络的响应时间,提出了一个整数函数。该算法基于三个特殊点构造近似函数或使用最小二乘法。在树形拓扑中,用三个特殊点构造逼近函数之前,必须先求出树边的编号顺序,使得所有与整数函数最优值对应的边都有相邻的数。文中指出,为了用这种方法计算边,必须满足一个基于哈密顿循环的特殊条件。在不满足条件的情况下,提出了由边重新编号和逼近函数子集局部最优值确定等步骤组成的顺序处理方法。
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引用次数: 1
In vitro and in vivo trials of wearable artificial kidney 可穿戴人工肾脏的体内外试验
N. A. Bazaev, V. M. Grinvald, N. Zhilo, B. M. Putrya, E. V. Streltsov
This paper presents results of in vitro and in vivo trials of a wearable artificial kidney (WAK) based on peritoneal dialysis. Materials and methods: in vitro trials were carried out in a developed test bench, which imitates patient's peritoneal cavity and capable to measure main procedure parameters. In vivo trial was carried out on a 15 kg dog in a healthy state to evaluate the effect of WAK on blood biochemical indicators and in an acute kidney injury state to test WAK's blood purification capabilities. Results: in vitro trials demonstrated that WAK could eliminate urea, uric acid and creatinine from spent dialysate with mean mass rates of 0.85±0.1 g/h, 0.10±0.04 g/h and 0.05±0.01 g/h respectively. Concentrations of Na+, Cl− and Ca2+ ions are kept in 10 % range from initial values. It is demonstrated that WAK can operate without replacement of expendable materials for 38 hours. During in vivo trial (39,5 hours), WAK performed continuous peritoneal dialysis with dialysis fluid regeneration. In acute kidney injury conditions (34 hours) creatinine and uric acid were eliminated from dialysing solution with the rate of 0,3 mg/h, urea was eliminated at the rate of 0,15 g/h, total removed ultrafiltrate volume was 350 ml. At the end of the second stage blood biochemical indicators stabilised in the range of normal values. Conclusion: developed WAK can perform elimination of metabolites from spent dialysis fluid with mass rates that are sufficient to maintain stable, physiologically normal metabolite concentrations in patient's blood.
本文介绍了一种基于腹膜透析的可穿戴人工肾脏(WAK)的体外和体内试验结果。材料与方法:体外实验在自行研制的模拟患者腹膜腔并能测量主要手术参数的实验台上进行。在健康状态下进行15公斤犬的体内试验,评估WAK对血液生化指标的影响;在急性肾损伤状态下进行体内试验,测试WAK的血液净化能力。结果:体外实验表明,WAK能清除废透析液中的尿素、尿酸和肌酐,平均质量率分别为0.85±0.1 g/h、0.10±0.04 g/h和0.05±0.01 g/h。Na+, Cl -和Ca2+离子的浓度保持在初始值的10%范围内。实验证明,WAK可以在不更换消耗性材料的情况下运行38小时。在体内试验期间(39.5小时),WAK进行了持续的腹膜透析和透析液再生。急性肾损伤34小时时,透析液中肌酐、尿酸以0.3 mg/h的速率去除,尿素以0.15 g/h的速率去除,超滤液总去除量为350 ml。第二阶段结束时,血液生化指标稳定在正常值范围内。结论:成熟的WAK能够清除透析液中的代谢物,其质量率足以维持患者血液中稳定的生理正常代谢物浓度。
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引用次数: 1
The study of RF PLL phase noise influence to SAR image quality 射频锁相环相位噪声对SAR图像质量影响的研究
K. S. Lyalin, Vadim K. Tsvetkov, Alexey Y. Sheremet, V. Kurganov
SAR image quality depends on the RF frontend parts characteristics including PLL stability parameters. Estimation of PLL stability most convenient with the phase noise characteristic. In this research simulation of the RF frontend PLL system was performed. Phase noise influence was presented as random frequency addition to signal samples. According to results of this research the expressions for the depending of the SAR image quality of the RF frontend PLL Phase noise level was obtained. Simulation results and obtained expressions are in good agreement with the SAR prototype experimental results. The research results can decrease laboriousness of SAR RF frontend designing, adjustment and diagnostics.
SAR图像质量取决于射频前端部件的特性,包括锁相环稳定性参数。用相位噪声特性估计锁相环的稳定性最方便。本研究对射频前端锁相环系统进行了仿真。相位噪声的影响表现为信号样本的随机频率加。根据研究结果,得到了射频前端锁相环相位噪声水平对SAR图像质量的依赖表达式。仿真结果及所得表达式与SAR样机实验结果吻合较好。研究结果可以减少SAR射频前端设计、调整和诊断的工作量。
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引用次数: 3
期刊
2018 IEEE Conference of Russian Young Researchers in Electrical and Electronic Engineering (EIConRus)
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