2020 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)最新文献_第7页

System Level Performance Evaluation of Location Aware Beamforming in 5G Ultra-Dense Networks 5G超密集网络中位置感知波束形成的系统级性能评估

2020 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2020-10-15 DOI: 10.1109/EExPolytech50912.2020.9243970

G. Fokin, S. Bachevsky, V. Sevidov

{"title":"System Level Performance Evaluation of Location Aware Beamforming in 5G Ultra-Dense Networks","authors":"G. Fokin, S. Bachevsky, V. Sevidov","doi":"10.1109/EExPolytech50912.2020.9243970","DOIUrl":"https://doi.org/10.1109/EExPolytech50912.2020.9243970","url":null,"abstract":"Current research is devoted to relation of link and system level parameters for location aware beamforming in fifth generation wireless ultra-dense networks. In spite of majority of works, devoted to this actual topic, there are no estimates for how close to each other we can allow communication for wireless neighbor transceiver devices, utilizing beamforming, when their density grows. As a prerequisite for beamforming on the system level spatial separation is evaluated on the link level. Developed link level model allows to relate antenna array elements number and spatial separation distance at first glance. Implemented system level model relates inter-site distance as a spatial separation with SINR and, thus, prove space-division multiple access capabilities potential in spite of increasing device density. The contribution and scientific novelty of research is an establishment of relation between half-power beam width and spatial separation on the link level, SINR evaluation on the system level and suggestion of an ellipse as a measure of positioning for location aware beamforming.","PeriodicalId":374410,"journal":{"name":"2020 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131917918","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: 10

ECG Signal Processing Algorithms to Determine Heart Rate 心电信号处理算法确定心率

2020 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2020-10-15 DOI: 10.1109/EExPolytech50912.2020.9243961

T. Magrupov, M. Magrupova, S. Abdihalikov, D. Ripka

引用次数: 2

A Technique for Classifying the ECG Signal into Various Possible States of the Cardiovascular System 一种将心电信号分类为心血管系统各种可能状态的技术

2020 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2020-10-15 DOI: 10.1109/EExPolytech50912.2020.9243864

T. Magrupov, Youkubjon Talatov, M. Magrupova, D. Ripka

引用次数: 0

Refined Calculation of the Influence Coefficient from the Changes difference in Dielectric Constant from the Operating Conditions of the Electromagnetic Field Sensors 电磁场传感器工作条件下介电常数变化差对影响系数的精细计算

2020 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2020-10-15 DOI: 10.1109/EExPolytech50912.2020.9243951

S. Kolmogorova, S. Biryukov, D. Baranov, A. Kolmogorov

{"title":"Refined Calculation of the Influence Coefficient from the Changes difference in Dielectric Constant from the Operating Conditions of the Electromagnetic Field Sensors","authors":"S. Kolmogorova, S. Biryukov, D. Baranov, A. Kolmogorov","doi":"10.1109/EExPolytech50912.2020.9243951","DOIUrl":"https://doi.org/10.1109/EExPolytech50912.2020.9243951","url":null,"abstract":"This is never exactly known where a developed instrument will be used. The developer must take into account the operating conditions during the design and determine the influencing factors on the measurement result to obtain the most reliable result. The article describes the mathematical calculation of the correction coefficient of the electromagnetic field sensors by the difference in dielectric constant in the external conditions. The calculation is evaluated, as well as its influence on the metrological characteristics of the sensor making it possible to estimate the error of use. A new mathematical model consisting of a system of integral equations is constructed. The basis of these equations is the functional dependence of the error on the angular dimensions of the sensitive elements and the dielectric constant of the sensor housing and the environment. The basis of the mathematical model is a coefficient $alpha$ that takes into account the difference dielectric permittivity of the sensor housing and the environment. Using constructed mathematical model, data and plots are obtained depending both on normalized energy value in unit volume of sensor from angular sizes $theta_{0mathrm{I}}$ and $theta_{02}$ of its sensitive electrodes, and from different ratios of dielectric constants of sensor base and environment. In the plots of these dependencies, maxima are observed. These maxima correspond to the maximum energy per unit volume of the sensor for specific angular sizes of its spherical segments ($theta_{0mathrm{I}}$ and $theta_{02}$) and for constant values of the parameter $alpha$.","PeriodicalId":374410,"journal":{"name":"2020 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132922501","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

Experimental Evaluation of SEFDM Trellis Based Demodulator 基于SEFDM栅格解调器的实验评价

2020 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2020-10-15 DOI: 10.1109/EExPolytech50912.2020.9243960

A. Kislitsyn, Aleksei Krylov, A. Rashich

引用次数: 6

Iodine Molecules Fluorescent Remote Sensing 碘分子荧光遥感

2020 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2020-10-15 DOI: 10.1109/EExPolytech50912.2020.9243978

V. Privalov, V. Shemanin

引用次数: 0

Automatic Lung Segmentation in Computed Tomography Images Using Active Shape Model 基于活动形状模型的计算机断层扫描图像肺自动分割

2020 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2020-10-15 DOI: 10.1109/EExPolytech50912.2020.9243982

F. Shariaty, M. Orooji, M. Mousavi, M. Baranov, E. Velichko

引用次数: 4

Studies of Spectral Changes in Females and Males in Experiments on Rats 大鼠实验中雌雄光谱变化的研究

2020 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2020-10-15 DOI: 10.1109/EExPolytech50912.2020.9243956

E. Timchenko, P. Timchenko, E. Pisareva, O. Frolov, Y. Fedorova, K. Cherny-Tkach, E. Yagofarova, L. Volova, M. Vlasov

引用次数: 0

Multivariable Control System of the Stewart Platform Stewart平台多变量控制系统

2020 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2020-10-15 DOI: 10.1109/EExPolytech50912.2020.9243949

O. Gasparyan, A. Ulikyan

引用次数: 1

Orientational Light Shift Experimental Estimate of 0-0 Resonance Frequency in Rubidium Vapor 铷蒸气中0-0共振频率的取向光移实验估计

2020 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2020-10-15 DOI: 10.1109/EExPolytech50912.2020.9243991

S. Ermak, R. Lozov, V. Semenov

{"title":"Orientational Light Shift Experimental Estimate of 0-0 Resonance Frequency in Rubidium Vapor","authors":"S. Ermak, R. Lozov, V. Semenov","doi":"10.1109/EExPolytech50912.2020.9243991","DOIUrl":"https://doi.org/10.1109/EExPolytech50912.2020.9243991","url":null,"abstract":"The paper presents the measurements results of the orientational light shift of the radio-optical 0-0 resonance frequency in the rubidium vapor with isotopic pumping. The experiments were done on a laboratory quantum discriminator, the functional diagram of which contained a known element set for rubidium frequency standard on a gas cell. The discriminator was placed in the three identical pairs of Helmholtz coils, 50 cm in diameter, which created a working magnetic field (10 μT, 3 μT, and 1 μT) in the area of the gas cell. Helmholtz coils were connected to alternating voltage sources to create a rotating magnetic field relative to the normal to the direction of the pumping light. To weaken external magnetic noise and inhomogeneities of the laboratory magnetic field, the entire system was placed in a magnetic shield with a screening factor of ~ 103, which practically made it possible to exclude the effect of the residual field on the measurements accuracy. The main experimental results are formulated as follows: the orientational frequency shift of the 0-0 radio-optical resonance does not depend on the magnitude of the working magnetic field and is linearly related to the pumping light intensity; when the working magnetic field is oriented normal to the quantum discriminator optical axis, the tensor and scalar components of the light shift have equal (positive) signs, which at any temperature of the filter-cell leads to their impossible compensation; when the working magnetic field is oriented along the quantum discriminator optical axis, the tensor and scalar components of the light shift have opposite signs, which at the corresponding temperature of the filter-cell leads to their possible (partial) compensation.","PeriodicalId":374410,"journal":{"name":"2020 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124298152","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