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2019 Systems of Signals Generating and Processing in the Field of on Board Communications最新文献

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Analysis of Digital Filter Prototype Design Methods for High-Speed Signal Processing Based on Polyphase Filter Bank 基于多相滤波器组的高速信号处理数字滤波器原型设计方法分析
V. Priputin, V. Magsumov, E. O. Lobova
This article presents a comparison of two methods for synthesizing digital filter prototypes. The first method based on the synthesis of the filter on a lattice structure, and the second iterative method based on minimizing the quadratic form. Both methods are applying with the fulfillment of the conditions of perfect reconstruction.
本文比较了两种合成数字滤波器原型的方法。第一种方法基于对晶格结构的综合滤波,第二种方法基于对二次型的最小化迭代。两种方法都在满足完全重构条件的情况下得到了应用。
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引用次数: 6
The Study of Probabilistic Characteristics of Cyclo-Stationary APSK-N-Signals Caused by Communication Channel with Memory 带存储器通信信道引起的周期平稳apsk - n信号的概率特性研究
V. L. Odintsov, I. M. Lerner, R. R. Fayzullin, V. I. Il’in
New properties of communication channel with intersymbol interference utilizing by APSK-N-signals are investigated. Based on estimates of the symbol error rate caused by intersymbol interference, the possibility of increasing the data transmission rate in the channel due to "transparency windows" is estimated. New properties have been identified that allow a significant increase in the efficiency of such communication channels.
研究了利用apsk - n信号处理具有码间干扰的通信信道的新特性。在估计码间干扰引起的码元误码率的基础上,估计了“透明窗”在信道中提高数据传输速率的可能性。已经确定了新的特性,可以显著提高这种通信渠道的效率。
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引用次数: 2
[Copyright notice] (版权)
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引用次数: 0
Voice Authentication System for Cloud Network 云网络语音认证系统
S. Melnik, N. Smirnov
Voice authentication is very perspective technology. It doesn’t need any special biometrical devices, like finger scanner or face detector. It can be use in any place and in any channels. Our algorithm can help to recognize person by special digital voice portrait. It can be use in direct stream and in real time. It can also use in On-Board telecommunication components.
语音认证是非常透视的技术。它不需要任何特殊的生物识别设备,比如手指扫描仪或面部探测器。它可以在任何地方和任何渠道使用。我们的算法可以通过特殊的数字语音画像来帮助识别人。它可以在直接流和实时使用。它也可以用于机载通信组件。
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引用次数: 4
Interval Method of Traffic Analysis in Multiservice Access Networks 多业务接入网流量分析的区间法
B. Likhttsinder
The article analyzes queuing systems’ stationary, ordinary recurrent streams of applications. The effect of correlation between the incoming flows of requests for queue sizes is determined. The article shows that the queue formation process in systems with a batched stream is cyclic. This process is divided into two sub-cycles: active and passive. Due to cycle analysis the generalization of the well-known Khinchin-Pollaczek formula is found. This formula was applicable only for Poisson queue flows before. The determined effect of correlations on the queue’s size is shown. The article proves that the maximum value of the covariation function’s integral of the applications’ number on intervals of the application’s service fully determines the middle size of queue into primary queuing systems with established load factor.
本文分析了排队系统的固定的、普通的循环应用流。确定传入请求流之间的相关性对队列大小的影响。本文证明了批处理流系统的队列形成过程是循环的。这个过程分为两个子周期:主动和被动。通过循环分析,得到了著名的Khinchin-Pollaczek公式的推广。该公式以前只适用于泊松队列流。显示了相关性对队列大小的确定影响。证明了应用程序数量在应用程序服务区间上的协变函数积分的最大值完全决定了已确定负载因子的主队列系统中队列的中等大小。
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引用次数: 1
Mathematical Model of the Dynamics of Operation of the Tethered High-Altitude Telecommunication Platform in the Turbulent Atmosphere 湍流大气中系留高空通信平台运行动力学的数学模型
V. Vishnevskiy, A. M. Shirvanyan, D. Tumchenok
The paper examines a task of researching the dynamics of operation of the tethered high-altitude unmanned platform in the turbulent atmosphere. It also describes the mathematical model of position of the cable equilibrium in space and describes the differential equation system, whose solution makes it possible to assess the horizontal and vertical constituent parts of a force acting to the high-altitude unmanned platform depending on the force of wind loads at various altitudes.
本文研究了系留式高空无人平台在湍流大气中的运行动力学问题。描述了索平衡在空间位置的数学模型,并描述了微分方程组,其解可以根据不同高度的风荷载力来评估作用在高空无人平台上的力的水平和垂直组成部分。
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引用次数: 7
Economic Security Assessment of Onboard Equipment Production with Possible Realization in Standard Machine Learning Technologies 基于标准机器学习技术的机载设备生产经济安全评估
E. Voronin, S. Kozlov, Yu. A. Kubankov
An economic security of production of the onboard equipment as autonomous objects is considered on a process basis. The interrelation of factors acting on objects and triggering processes in them, which lead to a change in their properties, is taken into account. A mathematical method and a criterion for economic security assessment of economic operations and industry systems with the possibility of their implementation in machine learning technologies are presented.
作为自主对象的机载设备生产的经济安全性是在过程的基础上考虑的。作用于对象和触发过程的因素之间的相互关系,导致其属性的变化,被考虑在内。提出了一种经济运行和工业系统经济安全评估的数学方法和标准,以及它们在机器学习技术中实现的可能性。
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引用次数: 1
Design and Simulation of a Hybrid Filter Bank for Processing Wideband Signals with Low-Speed ADCs 用低速adc处理宽带信号的混合滤波器组设计与仿真
A. Sattarova, V. Varlamov, E. M. Lobov
Currently, there is a tendency to increase the speed of information transmission by increasing used frequency band. However, when switching to broadband signals and operating under conditions of a high level of noise, a wide dynamic range is required when digitizing the received signal. To increase the dynamic range, it is proposed to use a hybrid filter bank, which allows processing the broadband signal with low-speed precision analog-to-digital converters. In this paper, was calculated and simulated a hybrid analysis-synthesis filter bank for the 26.25 MHz-86.25 MHz frequency range. Using matched filters, we estimated the distortion of a linearly frequency-modulated signal during the passage of filter banks without intermediate processing, after upsampling and downsampling intermediate signals from the outputs of analog filters. To reduce phase shifts and time delays arising during signal processing by synthesis filters, compensation delays and phase shifts were introduced, adjusted to distortions carried by the processing system. It was shown that phase correction allows reducing signal distortions. It was also shown that in the case of receiving a mixture of signal and noise, the distortion introduced by the processing system does not significantly affect the signal-to-noise ratio of the output signal.
目前,有一种通过增加所使用的频带来提高信息传输速度的趋势。然而,当切换到宽带信号并在高噪声条件下工作时,在对接收信号进行数字化时需要宽动态范围。为了增加动态范围,建议使用混合滤波器组,该滤波器组允许用低速精密模数转换器处理宽带信号。本文对26.25 MHz-86.25 MHz频率范围内的混合分析-合成滤波器组进行了计算和仿真。使用匹配滤波器,我们估计了线性调频信号在没有中间处理的滤波器组通过期间,在模拟滤波器输出的中间信号上采样和下采样后的失真。为了减少合成滤波器在信号处理过程中产生的相移和延时,引入了补偿延迟和相移,并根据处理系统所携带的畸变进行调整。结果表明,相位校正可以减小信号失真。结果还表明,在接收信号和噪声混合的情况下,处理系统引入的失真对输出信号的信噪比没有显著影响。
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引用次数: 14
Comparative Analysis of the Accuracy And Dynamic Characteristics of Navigate Radio Electronic Equipment with Phase and Frequency Auto Surveying in Intensive Inferences 密集推理中相位和频率自动测量导航无线电电子设备精度和动态特性的比较分析
A. A. Nemykin
To modern radio-electronic devices and systems for various purposes high demands are placed on the quality of operation. In particular, this applies to electronic equipment, used as a means of radio engineering support for the normal functioning of complex technical objects, the deviation from the normal mode of which is associated with increased danger. Such means include, in particular, the means of ensuring the flights of aircraft.
各种用途的现代无线电电子设备和系统对操作质量提出了很高的要求。这尤其适用于电子设备,这些设备被用作支持复杂技术对象正常运作的无线电工程手段,偏离其正常模式会增加危险。这种手段特别包括保证飞机飞行的手段。
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引用次数: 3
Synthesis of Informative Features for Recognition of the Type of Pulse Repetition Interval Modulation of Signals from Radars 雷达脉冲重复间隔调制信号类型识别的信息特征综合
D. S. Chirov, E. O. Kandaurova
The modern development of radio and radar facilities leads to the need to create special radio monitoring tools to monitor the electromagnetic spectrum. In the process of radio monitoring there is a need to detect and identify (recognition) of radio sources, in particular radars. The peculiarity of pulse radars is that the emitted radar signals can have both intra-pulse and inter-pulse modulation. There are quite a number of methods for recognizing types of pulse modulation (based on artificial neural networks, logical rules base, wavelet analysis, histogram analysis). Each of these methods uses its own set of features for recognition, which are certain parameters of the registered signal or the results of their special transformations. The effectiveness of recognition methods directly depends on the set of selected recognition features. The aim of the study is to select a dictionary of informative features for recognition of the following types of pulse repetition interval modulation (PRI) signals of radar: constant, stagger, sliding, dwell&switch, jittered, sin. To achieve this goal, two approaches were used: the choice of informative features using decision trees and the synthesis of informative features using an auto-associative neural network with a narrow throat. These approaches work well at the decision of tasks of recognition of radio signals. As a basic set of recognition features, statistical features of the distribution of the values of the pulse intervals of the radar signal proposed in [13], [14] were used: J1, J2, J3, f1, f2, f3, f4, f5.The analysis of different approaches to the selection of informative features showed that the mathematical apparatus of decision trees provides a better result compared to auto-associative neural networks. It is advisable to use features J1, J2, J3, f2 to recognize PRI modulation. At the same time, auto-associative neural networks allow to minimize the feature space without significant deterioration of its separating properties. Due to the reduction of the characteristic space at the stage of pre-processing of radio monitoring data, it is possible to reduce the computing power at the stages of identification of radio sources.
无线电和雷达设施的现代发展导致需要创建特殊的无线电监测工具来监测电磁频谱。在无线电监测过程中,需要探测和识别(识别)射电源,特别是雷达。脉冲雷达的特点是发射的雷达信号可以进行脉冲内调制和脉冲间调制。识别脉冲调制类型的方法有很多(基于人工神经网络、逻辑规则库、小波分析、直方图分析)。每种方法都使用自己的一组特征进行识别,这些特征是注册信号的某些参数或其特殊转换的结果。识别方法的有效性直接取决于所选择的识别特征集。研究的目的是选择一个信息特征字典,用于识别雷达脉冲重复间隔调制(PRI)信号的以下类型:恒定型、交错型、滑动型、切换型、抖动型、正弦型。为了实现这一目标,使用了两种方法:使用决策树选择信息特征和使用窄喉自关联神经网络合成信息特征。这些方法在确定无线电信号识别任务方面效果良好。作为识别特征的基本集合,采用[13]、[14]中提出的雷达信号脉冲间隔值分布的统计特征:J1、J2、J3、f1、f2、f3、f4、f5。对不同信息特征选择方法的分析表明,决策树的数学装置比自关联神经网络提供了更好的结果。建议使用特征J1、J2、J3、f2来识别PRI调制。同时,自关联神经网络允许最小化特征空间,而不会显著降低其分离特性。由于无线电监测数据预处理阶段特征空间的减小,可以降低射电源识别阶段的计算能力。
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引用次数: 2
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2019 Systems of Signals Generating and Processing in the Field of on Board Communications
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