2020 Moscow Workshop on Electronic and Networking Technologies (MWENT)最新文献_第3页

Measurement of the Dynamic Characteristics of Separate Spectral Bands of the LEDs Electroluminescence Spectra led电致发光光谱各光谱波段动态特性的测量

2020 Moscow Workshop on Electronic and Networking Technologies (MWENT) Pub Date : 2020-03-01 DOI: 10.1109/MWENT47943.2020.9067385

V. Sergeev, I. Frolov, O. Radaev

{"title":"Measurement of the Dynamic Characteristics of Separate Spectral Bands of the LEDs Electroluminescence Spectra","authors":"V. Sergeev, I. Frolov, O. Radaev","doi":"10.1109/MWENT47943.2020.9067385","DOIUrl":"https://doi.org/10.1109/MWENT47943.2020.9067385","url":null,"abstract":"A method for measuring the 3 dB frequency of the modulation of separate spectral components of the full electroluminescence spectrum of light-emitting diodes (LEDs) is described. The method consists in passing through the LED a series of current pulses having the shape of a meander, and the emission spectrum of the LED is measured by a spectrometer OceanOptics USB2000+ in the mode of signal accumulation. As the pulse frequency increases, the intensity of all spectral components of the LED emission spectrum decreases. The frequency at which the optical signal decreases 1.19 times relative to the level measured at a low frequency is taken as the 3 dB frequency of the separate spectral component of the LED electroluminescence spectrum. By using the pulse signal it is possible to increase the sensitivity of the measuring means compared to the measuring means using the harmonic test signal. A description of the hardware-software complex implementing said measurement method is presented. The results of testing the measuring complex by the example of measuring the electroluminescence spectra of commercial green InGaN-based LEDs at the current range of 10-5...10-2 A and the current frequency range of 0.001...10 MHz are presented. The developed hardware-software complex and the method for estimating the spectral recombination parameters of heterojunction LEDs can be used both for the purpose of diagnosing the quality of LEDs and in developing structural and technological solutions for creating new light-emitting structures.","PeriodicalId":122716,"journal":{"name":"2020 Moscow Workshop on Electronic and Networking Technologies (MWENT)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129347088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Geospatial Data Mining Concept Using Scrapping Technology 基于报废技术的地理空间数据挖掘概念

2020 Moscow Workshop on Electronic and Networking Technologies (MWENT) Pub Date : 2020-03-01 DOI: 10.1109/MWENT47943.2020.9067406

H. Nekrasov, D. E. Polivoda, E. Prokofeva

引用次数: 0

Improving of the Control Quality by Root of the Growth Signal Error 利用生长信号误差的根源提高控制质量

2020 Moscow Workshop on Electronic and Networking Technologies (MWENT) Pub Date : 2020-03-01 DOI: 10.1109/MWENT47943.2020.9067506

V. Zhmud, O. Stukach, L. Dimitrov, H. Roth

引用次数: 0

Development of Decomposition Methods for Empirical Modes Based on Extremal Filtration 基于极值滤波的经验模态分解方法的发展

2020 Moscow Workshop on Electronic and Networking Technologies (MWENT) Pub Date : 2020-03-01 DOI: 10.1109/MWENT47943.2020.9067378

N. Myasnikova, M. P. Beresten, M. Myasnikova

{"title":"Development of Decomposition Methods for Empirical Modes Based on Extremal Filtration","authors":"N. Myasnikova, M. P. Beresten, M. Myasnikova","doi":"10.1109/MWENT47943.2020.9067378","DOIUrl":"https://doi.org/10.1109/MWENT47943.2020.9067378","url":null,"abstract":"The method of extremal filtration implementing the decomposition of signals into alternating components is considered. The history of the method development is described, its mathematical substantiation is given. The method suggests signal decomposition based on the removal of known components locally determined by their extrema. The similarity of the method with empirical modes decomposition in terms of the result is shown, and their comparison is also carried out. The algorithm of extremal filtration has a simple mathematical basis that does not require the calculation of transcendental functions, which provides it with higher performance with comparable results. The advantages and disadvantages of the extremal filtration method are analyzed, and the possibility of its application for solving various technical problems is shown, i.e. the formation of diagnostic features, rapid analysis of signals, spectral and time-frequency analysis, etc. The methods for calculating spectral characteristics are described: by the parameters of the distinguished components, based on the approximation on the extrema by bell-shaped pulses. The method distribution in case of wavelet transform of signals is described. The method allows obtaining rapid evaluation of the frequencies and amplitudes (powers) of the components, which can be used as diagnostic features in solving problems of recognition, diagnosis and monitoring. The possibility of using extremal filtration in real-time systems is shown.","PeriodicalId":122716,"journal":{"name":"2020 Moscow Workshop on Electronic and Networking Technologies (MWENT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130865430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Distributed Processing of Electrical Meters Surveying 电表测量的分布式处理

2020 Moscow Workshop on Electronic and Networking Technologies (MWENT) Pub Date : 2020-03-01 DOI: 10.1109/MWENT47943.2020.9067459

A. Ivaschenko, A. Krivosheev

引用次数: 3

Formalization of Organization of Signaling Protocol While Making Online Calls Using Automata Theory 基于自动机理论的在线呼叫信令协议组织形式化研究

2020 Moscow Workshop on Electronic and Networking Technologies (MWENT) Pub Date : 2020-03-01 DOI: 10.1109/MWENT47943.2020.9067350

Pashchenko Dmitry Vladimirovich, Mitrokhin Maxim Aleksandrovich, Trokoz Dmitry Anatolyevich, Sinev Mikhail Petrovich, Savateev Maxim Valerievich, Iskhakov Nikita Valerievich, Rodionov Vladislav Sergeevich

引用次数: 1

Electrodynamic and Probabilistic Calculation of Performances of THz devices Based on Periodic Mtilayer Graphene-Dielectric Structures 基于周期性多层石墨烯-介电结构的太赫兹器件性能的电动力学和概率计算

2020 Moscow Workshop on Electronic and Networking Technologies (MWENT) Pub Date : 2020-03-01 DOI: 10.1109/MWENT47943.2020.9067449

A. Lerer, G. Kouzaev, G. Makeeva

引用次数: 2

Floating Complementary JFET Differential Stage with Increased Rejection of input Common Mode Signal and Power-Supply Noises 增加抑制输入共模信号和电源噪声的浮动互补JFET差分级

2020 Moscow Workshop on Electronic and Networking Technologies (MWENT) Pub Date : 2020-03-01 DOI: 10.1109/MWENT47943.2020.9067377

N. Prokopenko, A. Zhuk, I. Pakhomov

引用次数: 1

A Multi-code Multi-tone DHA FH OFDMA System with Nonparametric Reception 非参数接收的多码多音DHA跳频OFDMA系统

2020 Moscow Workshop on Electronic and Networking Technologies (MWENT) Pub Date : 2020-03-01 DOI: 10.1109/MWENT47943.2020.9067339

D. Osipov

引用次数: 2

Simulation of a Multi-Frequency Satellite Communication Channel 多频卫星通信信道的仿真

2020 Moscow Workshop on Electronic and Networking Technologies (MWENT) Pub Date : 2020-03-01 DOI: 10.1109/MWENT47943.2020.9067372

A. Mishurov, S. Panko, A. A. Gorchakovskiy, T. A. Zubov, D. Dmitriev, V. N. Tyapkin

{"title":"Simulation of a Multi-Frequency Satellite Communication Channel","authors":"A. Mishurov, S. Panko, A. A. Gorchakovskiy, T. A. Zubov, D. Dmitriev, V. N. Tyapkin","doi":"10.1109/MWENT47943.2020.9067372","DOIUrl":"https://doi.org/10.1109/MWENT47943.2020.9067372","url":null,"abstract":"The growing number of subscribers and the volume of transmitted information requires an increase in the capacity of satellite communication systems. This is possible through the use of high orders of signal constellations, spatial separation of channels, effective noise-resistant codes. In addition, the new standards require the effective use of nonlinear power amplifiers that must operate close to saturation. Of interest is the increase in the capacity of satellite communication systems due to the multi-frequency mode in the transponder channel. The article reveals the channel structure, gives a detailed description of the input and output multiplexers, a nonlinear amplifier, a mixer, and a local oscillator. The structure of the computer model of the transponder channel and the multi-frequency signal of the ground station is shown. The simulation results show that the multi-frequency mode introduces additional intermodulation distortion of the carriers of one channel. This requires the development of nonlinear predistortion systems at transmitting ground stations, as well as equalizers at receiving stations.","PeriodicalId":122716,"journal":{"name":"2020 Moscow Workshop on Electronic and Networking Technologies (MWENT)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121766860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3