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2022 International Conference on Electrical Engineering and Photonics (EExPolytech)最新文献

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Study of the Characteristics of Few-Mode Microstructured Optical Fibers with 6 Cores Made of Highly Doped GeO2 Silica and Induced Chirality 高掺杂二氧化硅及诱导手性制备六芯低模微结构光纤的特性研究
2022 International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2022-10-20 DOI: 10.1109/EExPolytech56308.2022.9950830
G. Pchelkin, V. Demidov, E. Ter-Nersesyants, A. Khokhlov, A. Bourdine, A. Matrosova, K. Dukelskii, V. Davydov, Andrey Podoprigora, Valery Pilipova, D. Shurupov, V. Romashova, R. Kashina
{"title":"Study of the Characteristics of Few-Mode Microstructured Optical Fibers with 6 Cores Made of Highly Doped GeO2 Silica and Induced Chirality","authors":"G. Pchelkin, V. Demidov, E. Ter-Nersesyants, A. Khokhlov, A. Bourdine, A. Matrosova, K. Dukelskii, V. Davydov, Andrey Podoprigora, Valery Pilipova, D. Shurupov, V. Romashova, R. Kashina","doi":"10.1109/EExPolytech56308.2022.9950830","DOIUrl":"https://doi.org/10.1109/EExPolytech56308.2022.9950830","url":null,"abstract":"The necessity of using silica-based few-mode microstructured optical fibers with induced longitudinal twisting (chirality) is experimentally substantiated. The case with a 6-core made of highly doped GeO2 silica for building the cross-section of an optical fiber is considered. Prototypes of microstructured optical fibers are fabricated and studied to exhibit the quasi-annular optical filed distribution. The results of experimental studies of the mentioned optical elements are presented and dependence of the basic characteristics on the parameters of the technological cycle of their production is estimated.","PeriodicalId":204076,"journal":{"name":"2022 International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116774478","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
Low-Complexity MIMO Demodulator with Quasi-optimal Error Rate Performance 具有准最优误码率性能的低复杂度MIMO解调器
2022 International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2022-10-20 DOI: 10.1109/EExPolytech56308.2022.9950946
A. Rashich, Ghena Basbous
{"title":"Low-Complexity MIMO Demodulator with Quasi-optimal Error Rate Performance","authors":"A. Rashich, Ghena Basbous","doi":"10.1109/EExPolytech56308.2022.9950946","DOIUrl":"https://doi.org/10.1109/EExPolytech56308.2022.9950946","url":null,"abstract":"This paper proposes a multiple-input multiple-output (MIMO) demodulating technique based on QR-decomposition, that is able to achieve a quasi-optimal Bit-Error Rate (BER) performance while requiring a polynomial computational effort of the same order as Linear demodulators. The proposed algorithm offers a flexible trade-off between arithmetic complexity and noise immunity by fine-tuning the algorithm parameters to meet the desired characteristics. The complexity of the proposed algorithm, as well as the simulation results of BER performance, are demonstrated in multiple MIMO scenarios and compared with other conventional demodulators.","PeriodicalId":204076,"journal":{"name":"2022 International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121136105","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
Synthesis of Pd-Ag Alloy Nano-composite Thin Films at Room Temperature by DC Magnetron Co-Sputtering 室温直流磁控共溅射法制备钯银合金纳米复合薄膜
2022 International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2022-10-20 DOI: 10.1109/EExPolytech56308.2022.9950935
Avantika Chauhan, M. Gupta, M. Mehta, A. Chawla, D. Avasthi
{"title":"Synthesis of Pd-Ag Alloy Nano-composite Thin Films at Room Temperature by DC Magnetron Co-Sputtering","authors":"Avantika Chauhan, M. Gupta, M. Mehta, A. Chawla, D. Avasthi","doi":"10.1109/EExPolytech56308.2022.9950935","DOIUrl":"https://doi.org/10.1109/EExPolytech56308.2022.9950935","url":null,"abstract":"The PdAg alloy thin films are of interest for hydrogen sensing and storage applications. The present work reports on the synthesis of PdAg alloy nanocomposite thin films by DC magnetron co-sputtering. We have synthesized the PdAg alloys films at three different compositions of Pd and Ag in the ratio 9:1, 7:3 and 1:1 with nomenclature of Pd90Ag10, Pd70Ag30, and Pd50Ag50 respectively. The relative ratio of Pd and ag was confirmed by Rutherford backscattering using 2 MeV alpha particles. The deposition rates of both Pd and Ag were individually calibrated by sputtering of individual Pd and Ag targets and subsequent film thickness measurement by X-ray reflectivity. The deposition was performed in 99.99% pure Argon environment at a pressure of $2.7times 10-3$ torr, whereas the base pressure was $1times 10-7$ torr. The X-ray diffraction of the samples reveals that there is no indication of separate peaks of either Pd or Ag, and the peak position lies in between the expected individual peaks of both Ag and Pd, which implies that a PdAg alloy is formed at ambient temperature by self- assembly process. It was found that the PdAg alloys films have the face-centred cubic (fcc) structure. FESEM images reveals that the Pd90Ag10 film is densely bound whereas the Pd50Ag50 film has higher porosity.","PeriodicalId":204076,"journal":{"name":"2022 International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121246513","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
Analysis of Tracking Filter Impact on Location-Aware Beamforming in 5G mm Wave UDN 5G毫米波UDN中跟踪滤波器对位置感知波束形成的影响分析
2022 International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2022-10-20 DOI: 10.1109/EExPolytech56308.2022.9950959
I. Grishin, G. Fokin
{"title":"Analysis of Tracking Filter Impact on Location-Aware Beamforming in 5G mm Wave UDN","authors":"I. Grishin, G. Fokin","doi":"10.1109/EExPolytech56308.2022.9950959","DOIUrl":"https://doi.org/10.1109/EExPolytech56308.2022.9950959","url":null,"abstract":"This study is devoted to evaluating the accuracy characteristics of the tracking algorithm for devices operating in ultra-dense radio access networks in the millimeter frequency range FR2, with the aim of adaptive formation of a three-dimensional directional pattern by the antenna array of the base station. The content of this work can be divided into two parts. In the first part of this paper, a mathematical formalization of the estimation of the coordinates of subscriber terminals, the algorithm for the operation of the tracking filter and the formation of the beam control vector is given. On the basis of the presented mathematical model, with the help of the developed simulation program, in the second part an analytical study of the accuracy characteristics of the operation of the tracking filter at different intensity of maneuvers of the terminal in the horizontal plane is performed.","PeriodicalId":204076,"journal":{"name":"2022 International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127546935","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
Wavelet Analysis of Bioelectric Signals by Means of Acousto-Optic Processors with Time Integration 基于时间积分声光处理器的生物电信号小波分析
2022 International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2022-10-20 DOI: 10.1109/EExPolytech56308.2022.9950986
K. Zaichenko, B. Gurevich, Vita Sviatkina
{"title":"Wavelet Analysis of Bioelectric Signals by Means of Acousto-Optic Processors with Time Integration","authors":"K. Zaichenko, B. Gurevich, Vita Sviatkina","doi":"10.1109/EExPolytech56308.2022.9950986","DOIUrl":"https://doi.org/10.1109/EExPolytech56308.2022.9950986","url":null,"abstract":"The possibilities of acousto-optic processors for bioelectric signals wavelet processing have been analyzed. It has been found that the most convenient way to provide this, is the application of the acousto-optic circuits with time integration. The obligatory condition which has to be met in this case is the use of the specific carrier signal for both information signal and mother wavelet, which represents the linear frequency modulated (LFM) signal. It allows to provide the frequency resolving power of the device which is about several or decades Hertz, which is enough for the major bioelectric signals. The mentioned above LFM signal, in its turn, is modulated by the information low-frequency signal, and, in the other channel, by the mother wavelet signal. The mathematical expressions which prove that the output signal of the acousto-optic processor with time integration contains data regarding the information wavelet transform, have been listed. Also, the optical circuit of such processor has been shown and described. The fundamental advantage of the considered method is the possibility to obtain the output processed signal using wavelet processing in the real time mode, i.e., simultaneously with bioelectric signal recording.","PeriodicalId":204076,"journal":{"name":"2022 International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114591560","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: 1
Analysis of BER Performance of the Fiber-optic Communication System with IMDD when using CP-OFDM Signals 使用CP-OFDM信号时IMDD光纤通信系统的误码率性能分析
2022 International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2022-10-20 DOI: 10.1109/EExPolytech56308.2022.9950992
Aleksandra Chekireva, A. Ovsyannikova, S. Zavjalov
{"title":"Analysis of BER Performance of the Fiber-optic Communication System with IMDD when using CP-OFDM Signals","authors":"Aleksandra Chekireva, A. Ovsyannikova, S. Zavjalov","doi":"10.1109/EExPolytech56308.2022.9950992","DOIUrl":"https://doi.org/10.1109/EExPolytech56308.2022.9950992","url":null,"abstract":"This article discusses the combined use of signals with orthogonal frequency-division multiplexing (OFDM) and intensity modulation with direct detection (IMDD) for a fiber-optic communication system. The purpose of this work is to determine the effective values of the system parameters. With the help of simulation modeling in MATLAB, the reception noise immunity was determined for various scenarios under conditions of a fixed bit rate. A Bessel filter was used to simulate the effect of electrical circuits on the signal. The chromatic dispersion of the fiber was considered when modeling the optical channel. As a result of the study, a set of parameters was determined that provides the lowest signal-to-noise ratio per bit (SNR) to achieve a bit error rate (BER) of 0.01, in particular, the number of data subcarriers (SC), the length of the cyclic prefix (CP) and the value of the direct current of the laser (DC).","PeriodicalId":204076,"journal":{"name":"2022 International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117099370","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: 1
Effect of the Idealization Models and Thermal Loads on Deflection Behavior of Sandwich FGM Plate 理想模型和热载荷对夹层FGM板挠曲性能的影响
2022 International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2022-10-20 DOI: 10.1109/EExPolytech56308.2022.9950823
Rebai Billel
{"title":"Effect of the Idealization Models and Thermal Loads on Deflection Behavior of Sandwich FGM Plate","authors":"Rebai Billel","doi":"10.1109/EExPolytech56308.2022.9950823","DOIUrl":"https://doi.org/10.1109/EExPolytech56308.2022.9950823","url":null,"abstract":"The aim of the current work is to study the influence of homogenization (idealization) models and thermal loads on static deflection behavior of sandwich functionally graded plate. Several micromechanical models have been employed to obtain the effective material properties of the two-phase FGM plate. The FGM plate is subjected to linear and nonlinear thermal loads. The used integral theory includes only four variable functions against five in the case of other HSDTs. The governing equations are derived and resolved via virtual work principle and Navier's model. The accuracy of the proposed analytical model is confirmed by comparing the results with those given by other models from the literature.","PeriodicalId":204076,"journal":{"name":"2022 International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114637143","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: 1
Probability Flux for a Photoelectron Formed During the Ionization of a Hydrogen-Like Atom by an Ultrashort Laser Pulse 超短激光脉冲使类氢原子电离过程中形成的光电子的概率通量
2022 International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2022-10-20 DOI: 10.1109/EExPolytech56308.2022.9950915
N. V. Larionov
{"title":"Probability Flux for a Photoelectron Formed During the Ionization of a Hydrogen-Like Atom by an Ultrashort Laser Pulse","authors":"N. V. Larionov","doi":"10.1109/EExPolytech56308.2022.9950915","DOIUrl":"https://doi.org/10.1109/EExPolytech56308.2022.9950915","url":null,"abstract":"The velocity field of a photoelectron formed as a result of the above-barrier ionization of a hydrogen-like atom is theoretically investigated. Based on the analytical expression for the photoelectron wave function, it is shown that some zeros of this function correspond to quantum vortices.","PeriodicalId":204076,"journal":{"name":"2022 International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121497920","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
Detecting Minimum Distance of LDPC Codes with Improved Approximately Nearest Codeword Method 改进的近似最近邻码字法检测LDPC码的最小距离
2022 International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2022-10-20 DOI: 10.1109/EExPolytech56308.2022.9950957
Zhewei Tong, Kewu Peng, Zhitong He
{"title":"Detecting Minimum Distance of LDPC Codes with Improved Approximately Nearest Codeword Method","authors":"Zhewei Tong, Kewu Peng, Zhitong He","doi":"10.1109/EExPolytech56308.2022.9950957","DOIUrl":"https://doi.org/10.1109/EExPolytech56308.2022.9950957","url":null,"abstract":"Approximately nearest codeword (ANC) is a classic approach for detecting minimum distance of low-density parity-check (LDPC) codes. With the principle of local search, ANC method is capable of detecting minimum distance of LDPC codes within acceptable time. However, the message passing (MP) decoding algorithm and scheduling scheme, as well as the local search strategy, still have much space to improve. To fill the gap, this paper proposes an improved-ANC method which employs novel noise introduction method, decoding algorithm, scheduling scheme and searching strategy, to accelerate the computation of the minimum distance of LDPC codes significantly. Finally, we run simulations on LDPC codes in Wi-Fi5 and 5G-NR standards. The simulation results are presented and demonstrate the effectiveness of our proposal.","PeriodicalId":204076,"journal":{"name":"2022 International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"233 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115807647","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 Synthesys of CsPbBr3 and CsPbBr3/Cs4PbBr6 Nanoparticles
2022 International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2022-10-20 DOI: 10.1109/EExPolytech56308.2022.9950987
E. Afanaseva, V. Klinkov, E. Vaishlia, V. Andreeva, Zakhar Patrakov, Marina Gushina
{"title":"The Synthesys of CsPbBr3 and CsPbBr3/Cs4PbBr6 Nanoparticles","authors":"E. Afanaseva, V. Klinkov, E. Vaishlia, V. Andreeva, Zakhar Patrakov, Marina Gushina","doi":"10.1109/EExPolytech56308.2022.9950987","DOIUrl":"https://doi.org/10.1109/EExPolytech56308.2022.9950987","url":null,"abstract":"The CsPbBr3 nanoparticles were synthesized by two methods with different solvents used. Toluene and isopropyl alcohol were chosen to compare the influence of solvent polarity on nanoparticle composition. The analysis of the phase composition, luminescence spectra and the results of transmission microscopy are presented.","PeriodicalId":204076,"journal":{"name":"2022 International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131456840","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: 1
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