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Automated Diagnostics of Radio Transmitters' Power Amplifiers 无线电发射机功率放大器的自动诊断
2022 International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2022-10-20 DOI: 10.1109/EExPolytech56308.2022.9950966
R. Zudov, N. Kulikov, V. Sorotsky, A. Ulanov
{"title":"Automated Diagnostics of Radio Transmitters' Power Amplifiers","authors":"R. Zudov, N. Kulikov, V. Sorotsky, A. Ulanov","doi":"10.1109/EExPolytech56308.2022.9950966","DOIUrl":"https://doi.org/10.1109/EExPolytech56308.2022.9950966","url":null,"abstract":"In this paper, an automated testing of the operability of the transistors of an elementary block is considered. According to the block-modular principle, a switched mode power amplifier of a radio transmitter for hundreds of kilowatts or more is being built.","PeriodicalId":204076,"journal":{"name":"2022 International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"20 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":"127020078","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
Chaotic Oscillator for a Chaotic Oscillatory Neural Network Hardware Implementation 混沌振荡器用于混沌振荡神经网络的硬件实现
2022 International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2022-10-20 DOI: 10.1109/EExPolytech56308.2022.9950739
Kirill P. Kuznecov, D. Budanov
{"title":"Chaotic Oscillator for a Chaotic Oscillatory Neural Network Hardware Implementation","authors":"Kirill P. Kuznecov, D. Budanov","doi":"10.1109/EExPolytech56308.2022.9950739","DOIUrl":"https://doi.org/10.1109/EExPolytech56308.2022.9950739","url":null,"abstract":"Neural networks have opened up a wide range of new abilities. However, increasing complexity narrows the range of application due to calculation time and power consumption growth. That is the reason why the world famous companies are starting to develop a hardware implementation for different types of neural networks. This article presents the results of creating models for hardware implementation of the chaotic oscillatory neural network. The hardware implementation needs small, fast, energy efficient, and tunable circuit for one-dimensional chaotic oscillator. This article proposes one-dimensional chaotic oscillator circuit with improved characteristics that is completely suitable for usage in chaotic oscillatory neural network hardware implementation. Using the proposed oscillator, the model of chaotic oscillatory neural network has been developed and tested.","PeriodicalId":204076,"journal":{"name":"2022 International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"10 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":"131152440","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
Doppler Effect Compensation with Chirp-z Transform for Underwater Acoustic Communications with OFDM Signaling 基于Chirp-z变换的OFDM水声通信多普勒效应补偿
2022 International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2022-10-20 DOI: 10.1109/EExPolytech56308.2022.9950810
A. Chilingarov, A. Gelgor
{"title":"Doppler Effect Compensation with Chirp-z Transform for Underwater Acoustic Communications with OFDM Signaling","authors":"A. Chilingarov, A. Gelgor","doi":"10.1109/EExPolytech56308.2022.9950810","DOIUrl":"https://doi.org/10.1109/EExPolytech56308.2022.9950810","url":null,"abstract":"The paper is aimed at ensuring efficiency of the underwater acoustic OFDM modem for mobile units by means of the Doppler effect correction module. The Doppler effect correction methods are analyzed. The chirp-z transform is applied for the Doppler effect compensation. The algorithm provides frequency shift compensation for blocks of the wideband signal with OFDM. The main result of the work is the Doppler effect correction software module. The chirp-z transform algorithm provides less computation complexity for the OFDM system. In addition, this paper also presents the requirements for the Doppler effect estimation system to provide the given error rate of the communication system.","PeriodicalId":204076,"journal":{"name":"2022 International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"920 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":"123052623","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
Estimation of AM/PM Characteristics Impact on Performance of DVB-S2/S2X System with Digital Predistortion 调幅/调幅特性对数字预失真DVB-S2/S2X系统性能影响的估计
2022 International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2022-10-20 DOI: 10.1109/EExPolytech56308.2022.9950945
D. Puzko, Yuriy Batov, Dmitry A. Tkachenko, A. Gelgor, P. Angueira, J. Montalbán
{"title":"Estimation of AM/PM Characteristics Impact on Performance of DVB-S2/S2X System with Digital Predistortion","authors":"D. Puzko, Yuriy Batov, Dmitry A. Tkachenko, A. Gelgor, P. Angueira, J. Montalbán","doi":"10.1109/EExPolytech56308.2022.9950945","DOIUrl":"https://doi.org/10.1109/EExPolytech56308.2022.9950945","url":null,"abstract":"Digital Satellite Broadcasting Systems DVB-S2 and DVB-S2X are good candidates for delivery of HDTV and UHDTV services to consumers. New types of APSK signal constellations with amplitude modulation are introduced in these standards to increase possible data rates. Use of digital predistortion techniques may considerably improve the performance of these systems and decrease required SNR thresholds. The paper investigates the impact of AM/PM phase distortions in high power amplifiers (HPA) of satellite systems and shows that for typical HPA amplifiers described by Saleh model the impact of AM/PM distortions is less considerable than impact of amplitude distortions AM/AM.","PeriodicalId":204076,"journal":{"name":"2022 International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"24 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":"121429343","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
Preservation of Optical Vortex OAM after Distortion by a Diaphragm 膜片畸变后光涡旋OAM的保存
2022 International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2022-10-20 DOI: 10.1109/EExPolytech56308.2022.9950990
V. Kotlyar, A. Kovalev, A. Nalimov, E. Kozlova
{"title":"Preservation of Optical Vortex OAM after Distortion by a Diaphragm","authors":"V. Kotlyar, A. Kovalev, A. Nalimov, E. Kozlova","doi":"10.1109/EExPolytech56308.2022.9950990","DOIUrl":"https://doi.org/10.1109/EExPolytech56308.2022.9950990","url":null,"abstract":"In this study, we theoretically and numerically show that the normalized orbital angular momentum (OAM) and the topological charge (TC) of superposition of optical Gaussian vortices with symmetric OAM-spectrum are equal to TC of the middle constituent vortex. It is also shown that after passing a sector-shaped aperture, the symmetric superposition preserves the OAM, with the TC becoming fractional and proportional to the angle of the sector aperture. As it further propagates in free space after the sector aperture, the TC of the superposition becomes integer albeit indefinite due to the aperture edges generating a multitude of extra optical vortices with positive and negative unit TC, irregularly arranged across the beam.","PeriodicalId":204076,"journal":{"name":"2022 International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"107 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":"114215485","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
Measurement of Refraction Coefficients in thin Biomolecular Films Studies 生物分子薄膜折射系数的测量研究
2022 International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2022-10-20 DOI: 10.1109/EExPolytech56308.2022.9950914
E. Nepomnyashchaya, M. Baranov, O. Tsybin
{"title":"Measurement of Refraction Coefficients in thin Biomolecular Films Studies","authors":"E. Nepomnyashchaya, M. Baranov, O. Tsybin","doi":"10.1109/EExPolytech56308.2022.9950914","DOIUrl":"https://doi.org/10.1109/EExPolytech56308.2022.9950914","url":null,"abstract":"The paper presents the results of a study of experimental biomolecular model films and film components intended for embedding in hybrid micro- and nanoelectronic devices. The refractive indices of thin biomolecular films located on transparent substrates were measured. The study was carried out using refractometry methods on a NAR-3T Abbe refractometer (ATAGO, Japan).","PeriodicalId":204076,"journal":{"name":"2022 International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"28 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":"124928560","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
Fabrication of Cesium Vapor Cells for Chip-Scale Atomic Clock Based on Coherent Population Trapping 基于相干居群俘获的芯片级原子钟铯蒸气电池的制备
2022 International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2022-10-20 DOI: 10.1109/EExPolytech56308.2022.9950855
Aleksey Kazakin, Y. Akulshin, Y. Enns, R. Kleimanov, I. Komarevtsev, Andrei Korshunov
{"title":"Fabrication of Cesium Vapor Cells for Chip-Scale Atomic Clock Based on Coherent Population Trapping","authors":"Aleksey Kazakin, Y. Akulshin, Y. Enns, R. Kleimanov, I. Komarevtsev, Andrei Korshunov","doi":"10.1109/EExPolytech56308.2022.9950855","DOIUrl":"https://doi.org/10.1109/EExPolytech56308.2022.9950855","url":null,"abstract":"The article presents the results of the development, fabrication and investigation of miniature cesium vapor cells for quantum frequency standards with optical pumping, working on the effect of coherent population trapping. Microelectromechanical systems technologies were used in the manufacture of cells. For the first time, the dry silicon etching in inductively coupled plasma of sulfur hexafluoride and freon gas in a mixed mode was used to form internal cavities of cells with a thickness of 1.5 mm. Vacuum-tight sealing of cells containing a solid-state source of cesium vapor and buffer gas was carried out by anodic bonding of glass and silicon in a neon atmosphere. The coherent population trapping signal with a linewidth of 750 Hz and a signal-to-noise ratio of 1190 in the 1-Hz bandwidth was observed. Experimental results show that these microcells are appropriate for applications to atomic clock with a relative frequency stability of $6cdot 10^{-11}$ at 1 s.","PeriodicalId":204076,"journal":{"name":"2022 International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"66 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":"123524261","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
Swift Heavy Ion irradiated Pd_Au Nanocomposite Thin Films for SERS Applications 快速重离子辐照Pd_Au纳米复合薄膜在SERS中的应用
2022 International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2022-10-20 DOI: 10.1109/EExPolytech56308.2022.9951002
Mangababu Akkanaboina, S. Khan, S. N. Rao, Venugopal Rao Soma, Amita Chawla, Deepti, D. Avasthi
{"title":"Swift Heavy Ion irradiated Pd_Au Nanocomposite Thin Films for SERS Applications","authors":"Mangababu Akkanaboina, S. Khan, S. N. Rao, Venugopal Rao Soma, Amita Chawla, Deepti, D. Avasthi","doi":"10.1109/EExPolytech56308.2022.9951002","DOIUrl":"https://doi.org/10.1109/EExPolytech56308.2022.9951002","url":null,"abstract":"Plasmonic nanoparticle-based SERS substrates have proved their excellence in trace detection of hazardous molecules. The present work reports on ion irradiated palladium gold (Pd_Au) nano composite thin films for SERS application. The Pd_Au thin films are deposited on Si substrates by sputtering method. Further, ion irradiation at various fluences of $3times 10^{12},1times 10^{13}$, and $3times 10^{13}text{ions}/text{cm}^{2}$ is carried out on these samples by 120 MeV silver ions. The morphology, compositional analysis and phase were characterized by SEM, RBS, and XRD techniques respectively. The pristine and irradiated samples were tested for trace level detection of an analyte molecule, Methylene Blue (MB). A lowest detection limit of $sim 5 mu mathrm{M}$ was observed for the sample irradiated with highest fluence ($3times 10^{13}$) while $sim 50 mu mathrm{M}$ was detected in the case of other two samples. Enhancement factors of $0.67times 10^{2},0.75times 10^{2}$, and $2times 10^{2}$ were observed for the samples irradiated at $3times 10^{12},1times 10^{13}$, and $3times 10^{13}$, respectively. Hence, it is very clear that the irradiation fluence has a desirable effect on the SERS response of the thin films. The difference in SERS response may be attributed to the observed surface morphology changes (grain size variation) upon irradiation. We believe that further experiments with different irradiation conditions and thickness of the composite thin film may increase the enhancement factors.","PeriodicalId":204076,"journal":{"name":"2022 International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"50 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":"123209002","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
Modeling the Mechanical Parameters of Porous Silicon on the Ansys Virtual Design Environment 基于Ansys虚拟设计环境的多孔硅力学参数建模
2022 International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2022-10-20 DOI: 10.1109/EExPolytech56308.2022.9950903
A. Dautov, A. Gagarina, Maxim Kulagin, Georgy Kolev, Aliya M. Khafizova
{"title":"Modeling the Mechanical Parameters of Porous Silicon on the Ansys Virtual Design Environment","authors":"A. Dautov, A. Gagarina, Maxim Kulagin, Georgy Kolev, Aliya M. Khafizova","doi":"10.1109/EExPolytech56308.2022.9950903","DOIUrl":"https://doi.org/10.1109/EExPolytech56308.2022.9950903","url":null,"abstract":"The paper is devoted to the modeling of porous silicon matrix, the study of its mechanical properties in the Ansys virtual design environment at different indices of porosity and comparison with the experimental data taken in the laboratory [3]. Testing in software systems using the finite element method is universally used in various applied industries: construction, medicine, materials science. In this paper, we tried to use Ansys Material Designer to simulate the microstructure of porous silicon with different percentages of pore filling. After constructing the microstructure, we used this model in the Static Structural module to investigate the mechanical parameters of a sample made of a previously calculated material. The mechanical properties of the porous structure were simulated using the Static Structural module.","PeriodicalId":204076,"journal":{"name":"2022 International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"142 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":"134101725","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
Influence of Optical Fiber Type Selection on Information Security of Fiber-optic Systems 光纤类型选择对光纤系统信息安全的影响
2022 International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2022-10-20 DOI: 10.1109/EExPolytech56308.2022.9950919
E. Andreeva, Dmitry P. Andreev
{"title":"Influence of Optical Fiber Type Selection on Information Security of Fiber-optic Systems","authors":"E. Andreeva, Dmitry P. Andreev","doi":"10.1109/EExPolytech56308.2022.9950919","DOIUrl":"https://doi.org/10.1109/EExPolytech56308.2022.9950919","url":null,"abstract":"Solving the problem of ensuring the information security of the fiber-optics systems requires an analysis of possible methods of unauthorized access. Improving the technology of installation and operation of the fiber-optics systems not only enhances the quality and distance of information transmission over an optical cable, but also potentially expands the range of channels for possible leakage of information transmitted through it. Improving the construct of the optical fibers, the use of such technologies as wavelength division multiplexing (WDM), necessitates a complex analysis of increasing the information capacity and security of fiber-optics systems from unauthorized access. The paper compares the security of the fiber-optics systems built on the standard single mode fiber (SSMF) and dispersion shifted fiber (DSF). It is shown that, despite of the possibility of a higher information capacity, fiber-optics systems built on DSF require more careful control to avoid unauthorized access than in the case of using standard SSMF.","PeriodicalId":204076,"journal":{"name":"2022 International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"9 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":"133706116","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
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