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2019 IEEE International Scientific-Practical Conference Problems of Infocommunications, Science and Technology (PIC S&T)最新文献

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Model and Algorithms for Microwave Mutiport Receiver 微波多端口接收机的模型与算法
O. Zaichenko, Pavlo Galkin, M. Miroshnyk
The six-port receiver is very perspective in wireless application as it much cheaper than receivers with heterodyne transformation because vector information about not only modulus but phase too is derived from scalar sensor signals by processing with algorithms. There was considered principle of action of six-port receiver, mathematical model of six-port receiver, using redundancy in the algorithms for six and more port receiver in the report. There was proposed how to provide phase and clock synchronization. There was proposed constellation diagram obtained by simulation. Due to described filters the error vector magnitude (EVM) decreases almoust 10 times
六端口接收器在无线应用中非常有前景,因为它比外差变换接收器便宜得多,因为不仅关于模量,而且关于相位的矢量信息也是通过算法处理从标量传感器信号中得到的。考虑了六口接收机的作用原理,六口接收机的数学模型,在六口及六口以上接收机的算法中使用冗余。提出了如何实现相位和时钟同步。通过仿真得到了相应的星座图。由于所描述的滤波器,误差矢量幅度(EVM)降低了近10倍
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引用次数: 4
Evaluation of Quality of Backup Copy Systems Data in Telecommunication Systems 电信系统中备份复制系统数据质量的评价
V. Bandura, Andriy Malitchuk, M. Pasieka, R. Khrabatyn
This article deals with a number of issues associated with software quality evaluation. The method for the quality evaluation of data backup systems based on an example of open source software, taking into account the needs of the end consumer, which provide the determination of indicators based on the typical functionalities.
本文讨论了与软件质量评估相关的一些问题。以开源软件为例,考虑到终端用户的需求,提出了基于典型功能的数据备份系统质量评价方法。
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引用次数: 2
Models, Methods and Algorithms of Web System Architecture Optimization Web系统架构优化的模型、方法和算法
N. Pasieka, V. Sheketa, Y. Romanyshyn, M. Pasieka, Ulyana Domska, A. Struk
The algorithm of transfer of computational load without application of additional reserve resources and having offered innovative model of the organization of communication of modules within the limits of one knot and system as a whole is considered. The essence of the model is that the software is divided into logical modules, that is, by its purpose. The architecture of the Web-system is designed so that the modules contain as little logic as possible, because the main task of load redistribution is to support the system in balance. The second requirement for the software architecture is to avoid strong connectivity. Therefore, it is necessary to divide the system into small modules that work with one or a small number of «parent» modules. In the developed model, the modules are isolated from each other and do not have a general condition, but between them you can establish communication and receive notifications about their condition. Asynchronous message exchange is used for interaction of modules. An important aspect of the research is that additional free resources can be found within the existing capabilities of the Web-system.
提出了不使用额外储备资源的计算负荷转移算法,提出了单节点范围内和系统整体范围内模块通信组织的创新模型。该模型的本质是将软件划分为逻辑模块,即按其目的划分。web系统的体系结构设计使模块包含尽可能少的逻辑,因为负载重新分配的主要任务是支持系统的平衡。软件架构的第二个要求是避免强连接性。因此,有必要将系统划分为与一个或少量«父»模块一起工作的小模块。在开发的模型中,模块彼此隔离,没有通用条件,但在它们之间可以建立通信并接收有关其条件的通知。异步消息交换用于模块之间的交互。这项研究的一个重要方面是,可以在web系统的现有功能中找到额外的免费资源。
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引用次数: 11
Economic Security as a Result of Modern Biotechnology Implementation 现代生物技术实施带来的经济安全
A. Levkin, A. Petrenko, R. Levkina, Igor Chaliy
To solve the issue of economic security of the country due to providing the population with high-quality livestock products article proposed a model and a method for solving the automation and optimization tasks of embryo laser division, allowing effective computational implementation in the sense of insignificant storage and labor input. This ensures the solution of relevant practical problems in real-time, that is, directly upon receiving the embryo image, which is essential for the laser cutting process, since during the time of optimal trajectory constructing the embryo does not have time to significantly change its position. That solves the food sequrity problem in the context of the country’s economic security and will allow to bring biotechnological processes to a fundamentally new level, corresponding to the pace of modern technologies development. The research also solves the problem of animal livestock economic efficiency and the use of the latest technologies progres of fundamental areas of production.
为解决向人口提供优质畜产品带来的国家经济安全问题,本文提出了一种解决胚胎激光分割自动化和优化任务的模型和方法,在不需要储存和劳动投入的情况下实现有效的计算实现。这保证了相关实际问题的实时解决,即直接接收胚胎图像,这对于激光切割过程至关重要,因为在最优轨迹构建期间,胚胎没有时间显著改变其位置。这在国家经济安全的背景下解决了粮食安全问题,并将使生物技术进程达到一个与现代技术发展速度相适应的全新水平。研究还解决了畜禽经济效益问题和利用畜禽生产基础领域的最新技术进步。
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引用次数: 5
The Relevance of Using Message Brokers in Robust Enterprise Applications 在健壮的企业应用程序中使用消息代理的相关性
Vladyslav Apukhtin, Mariya Shirokopetleva, Victoria Skovorodnikova
The paper covers main message broker protocols and the patterns which are used to manage technical problems. The article provides the reader with typical software engineering design issues which might lead to conceptual violations, software non-functional requirements nonconformity, which is high coupling problem, synchronous operation performance loss, and system constituent integration problem. The solutions which come as a result of applying messaging are brought covering each problem above, in particular establishing the communication between loosely coupled applications, researching the application performance speedup with the Amdahl’s law and applying Read Model architectural pattern leveraging message brokers capabilities.
本文介绍了主要的消息代理协议和用于管理技术问题的模式。本文为读者提供了典型的软件工程设计问题,这些问题可能会导致概念上的违反、软件非功能需求的不一致(即高耦合问题)、同步操作性能损失以及系统组成集成问题。应用消息传递带来的解决方案涵盖了上面的每个问题,特别是在松散耦合应用程序之间建立通信,使用Amdahl定律研究应用程序性能加速,以及利用消息代理功能应用Read Model体系结构模式。
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引用次数: 0
Semantic Radar Technology for Detecting and Recognizing Low-Visible Air Objects 语义雷达探测与识别低可见空中目标技术
I. Shubin, S. Solonska, Stanislav Snisar, V. Slavhorodskyi, Victoria Skovorodnikova
The paper presents the information technology of low-visible air objects radar detection developed by formalizing the processes of perception and transformation of signals and signal images, taking into account the possibilities of unification of procedures for inter-period and multi-survey (multi-view) radar signals processing and information based on semantic analysis. It is also proposed to accumulate the energy and semantic component of the signal information by forming space-time images using the algebra of finite predicates.
考虑到跨周期、多测(多视点)雷达信号处理过程与基于语义分析的信息处理过程统一的可能性,通过对信号和信号图像的感知和变换过程进行形式化,提出了低可见目标雷达探测信息技术。提出了利用有限谓词代数形成时空图像的方法来积累信号信息的能量和语义成分。
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引用次数: 1
Application of Spatial Signal Processing for Bandwidth Capability Improvement of Radio Relay Link 空间信号处理在提高无线电中继链路带宽能力中的应用
G. Avdeyenko
Novel method of radio relay link bandwidth capacity improvement based on spatial signal processing by the wave front of the electromagnetic wave are presented. Test results of a variant of one-hop simplex radio relay link lab prototype with spatial signal processing both in the transmitting and receiving sites are shown. This prototype provides simultaneous parallel wireless transmission of two DVB-C radio signals with 64-QAM modulations at bit rates of 41.25 Mbps over 8 MHz bandwidth with the same carrier frequency of 10.56 GHz and with the same electromagnetic waves polarization at distance of 8 meters. This prototype can be used for research the possibility of radio frequency resource reuse and bandwidth capability improvement for radio relay links by applying spatial signal processing techniques.
提出了一种基于电磁波波前空间信号处理的无线中继链路带宽容量改进方法。给出了一种单跳单工无线电中继链路实验室样机的测试结果,该样机在发射端和接收端都进行了空间信号处理。该原型机在8 MHz带宽下,以相同的10.56 GHz载波频率和相同的电磁波极化,以41.25 Mbps的比特率同时并行传输两个64-QAM调制的DVB-C无线电信号,距离为8米。该原型可用于研究应用空间信号处理技术提高无线电中继链路射频资源复用和带宽能力的可能性。
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引用次数: 0
Entropy Analysis Method for Attacks Detection 攻击检测的熵分析方法
T. Radivilova, Lyudmyla Kirichenko, A. S. Alghawli
The paper proposes and implements a network traffic analysis method for detecting attacks, which is based on protocol analysis and the maximum entropy method. To analyze the quality of functioning of the proposed method, we used data from a data set that contains traffic of various protocols and DDoS attacks, UDP floods, TCP SYN streams, Ping of Death attacks, and HTTP flood attacks. The proposed method for analyzing the maximum entropy was software implemented and the results of its work showed high-quality attack detection. The method can detect various attacks with a probability of about 94%, while false-positive values did not exceed 10%. The advantage of the method is the early detection of intrusions, due to the rapid calculation of the maximum entropy using the sliding window method.
提出并实现了一种基于协议分析和最大熵法的网络流量检测方法。为了分析所提出方法的功能质量,我们使用了来自一个数据集的数据,该数据集包含各种协议和DDoS攻击、UDP洪水、TCP SYN流、Ping of Death攻击和HTTP洪水攻击的流量。所提出的最大熵分析方法已在软件上实现,其工作结果显示出高质量的攻击检测。该方法检测各种攻击的概率约为94%,而假阳性率不超过10%。该方法利用滑动窗口法快速地计算出最大熵,其优点是可以较早地检测到入侵。
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引用次数: 5
Gradient Signal Processing Algorithm for Adaptive Antenna Arrays Obviating Reference Signal Presence 自适应天线阵列中消除参考信号存在的梯度信号处理算法
O. Pliushch
Signal processing algorithms in adaptive antenna arrays are analyzed with respect to their application in mobile telecommunication systems. It is established that both in literature and in practice insufficient attention is paid to search for and design of such simple adaptation algorithms that do not require presence of the reference signal. Gradient method of adaptation is considered and its limitations are exposed. It is shown that the gradient method requires a reference signal that can be presented as the signal in a selected antenna element or a reference signal generated in the antenna array. A simple algorithm of antenna array adaptation is deduced that operates in the absence of the reference signal. Computer simulation of adaptive antenna arrays with the designed algorithm in different situations is carried out, which singles out inherent deficiency in the algorithm. Improvements to eliminate this deficiency are offered. High performance of the improved gradient algorithm is confirmed in difficult interference environments.
分析了自适应天线阵列中的信号处理算法及其在移动通信系统中的应用。由此可见,对于这种不需要参考信号存在的简单自适应算法的寻找和设计,无论是在文献还是在实践中都没有得到足够的重视。研究了梯度自适应方法,并指出了其局限性。结果表明,梯度法需要一个参考信号,该参考信号可以表示为所选天线单元中的信号,也可以表示为天线阵列中产生的参考信号。推导了一种简单的天线阵列自适应算法,该算法可以在没有参考信号的情况下工作。利用所设计的算法对不同情况下的自适应天线阵进行了计算机仿真,找出了算法的固有不足。提出了消除这一缺陷的改进方法。改进的梯度算法在复杂干扰环境下的性能得到了验证。
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引用次数: 9
Local Feature Detectors Performance Analysis on Digital Image 数字图像局部特征检测器性能分析
Kirill Smelyakov, Dariia Tovchyrechko, Igor Ruban, A. Chupryna, O. Ponomarenko
The article puts an experiment on application of widely used ORB, SIFT and SURF feature point detectors represented by the corresponding functions in the OpenCV library, to the images of the most common object classes such as human faces, fine details and artificial images. The considered detectors display as a result a huge number of points that are not classified or structured. Building an appropriate classifier would greatly increase the efficiency of subsequent image processing operations: localization, recognition, search, and tracking of objects. The article analyzes the effectiveness of the experimental results at a quantitative and qualitative level taking into account the conditions and limitations (primarily temporal) on solving practical problems in the era of Big Data, as well as taking into account the fact that some detectors are proprietary. According to the analysis results of the usage effectiveness of the features points detectors considered in the work the practical recommendations for specific use cases are given at the end of the work.
本文以OpenCV库中相应的函数为代表,对广泛使用的ORB、SIFT和SURF特征点检测器在人脸、精细细节和人工图像等最常见的对象类图像中的应用进行了实验。所考虑的检测器结果显示了大量未分类或未结构化的点。构建一个合适的分类器将大大提高后续图像处理操作的效率:对象的定位、识别、搜索和跟踪。考虑到大数据时代解决实际问题的条件和限制(主要是时间上的),以及一些检测器是专有的,本文从定量和定性两个层面分析了实验结果的有效性。根据工作中所考虑的特征点检测器的使用有效性分析结果,在工作的最后给出了针对具体用例的实用建议。
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引用次数: 11
期刊
2019 IEEE International Scientific-Practical Conference Problems of Infocommunications, Science and Technology (PIC S&T)
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