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2019 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)最新文献

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New Pulse Shapes for Partial Response Signaling to Outperform Faster-than-Nyquist Signaling 部分响应信号的新脉冲形状优于奈奎斯特信号
2019 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2019-10-01 DOI: 10.1109/EExPolytech.2019.8906884
A. Gelgor, T. Gelgor
{"title":"New Pulse Shapes for Partial Response Signaling to Outperform Faster-than-Nyquist Signaling","authors":"A. Gelgor, T. Gelgor","doi":"10.1109/EExPolytech.2019.8906884","DOIUrl":"https://doi.org/10.1109/EExPolytech.2019.8906884","url":null,"abstract":"Faster-than-Nyquist (FTN) signaling is the promising idea that theoretically provides a significant increase in the spectral efficiency without energy loss. The gain is achieved through incorporating intersymbol interference (ISI) by simply increasing symbol rate. Another way to increase spectral efficiency is to use pulses assuming incorporating ISI. It is commonly called Partial Response (PR) signaling. Both approaches face certain difficulties in the signal processing as the conventional processing chain including a matched filter causes colored noise. Also, FTN signaling and PR signaling achieve declared gains only asymptotically, i.e. at very low values of the bit error rate (BER) and a high computational complexity of the detection algorithms. In this paper, we propose two methods of signal processing with ISI. Both of them cause white noise. The former is suitable for simulation and the latter is suitable for practical implementation. Additionally, we propose a new optimization criterion for synthesizing pulses for PR signaling. It is shown in the article that PR signaling with the pulses proposed by us outperform FTN signaling and PR signaling with other known optimal pulses. Moreover, it is achieve the Mazo limit at BER = 10−4 and with low computational complexity of signal detection.","PeriodicalId":305685,"journal":{"name":"2019 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115892601","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: 12
Radiomics: Extracting more Features using Endoscopic Imaging 放射组学:利用内窥镜成像提取更多特征
2019 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2019-10-01 DOI: 10.1109/EExPolytech.2019.8906843
F. Shariaty, M. Baranov, E. Velichko, M. Galeeva, V. Pavlov
{"title":"Radiomics: Extracting more Features using Endoscopic Imaging","authors":"F. Shariaty, M. Baranov, E. Velichko, M. Galeeva, V. Pavlov","doi":"10.1109/EExPolytech.2019.8906843","DOIUrl":"https://doi.org/10.1109/EExPolytech.2019.8906843","url":null,"abstract":"Cancer is the leading cause of death in the world and delayed detection being the cause of the most significant factor for its high mortality rate. Computers can help radiologists in analyzing medical images and detection of cancer. Radiomics refers to the computerized extraction of information from medical images and provides the potential for making cancer screening with high rapid and more accurate using machine learning algorithms. Endoscopic imaging and X-ray imaging (Computed tomography) are two common methods used in medical imaging. In this paper, the advantages and limitations of endoscopic and CT scan images discussed. Then the features that can be extracted from endoscopic and CT scans are discussed and finally these two imaging methods are considered and compared to use for computer-aided detection systems.","PeriodicalId":305685,"journal":{"name":"2019 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115036721","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: 12
Output Voltage PWM Conversion Inaccuracies in Envelope Tracking Power Supply for High Peak-to-Average Power Ratio Applications 高峰值平均功率比应用中包络跟踪电源的输出电压PWM转换误差
2019 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2019-10-01 DOI: 10.1109/EExPolytech.2019.8906854
Aleksey O. Pergushev, V. Sorotsky, A. Ulanov
{"title":"Output Voltage PWM Conversion Inaccuracies in Envelope Tracking Power Supply for High Peak-to-Average Power Ratio Applications","authors":"Aleksey O. Pergushev, V. Sorotsky, A. Ulanov","doi":"10.1109/EExPolytech.2019.8906854","DOIUrl":"https://doi.org/10.1109/EExPolytech.2019.8906854","url":null,"abstract":"When amplifying signals with a high peak-to- average power ratio, the envelope tracking method is widely used to increase the efficiency of power amplifiers. When designing a control device for an envelope tracking power supply (ETPS), it is relevant to form control signals using digital methods. The paper considers errors of envelope signal forming with multi-cell ETPS, which are caused by a number of factors. These include: digital representation of control pulses PWM-sequences parameters, inaccuracies of cell synchronization, dispersion of parameters of transistors and elements of low-pass filter (LPF). It is shown that bits number chosen to represent PWM pulses in digital form contributes to the appearance of parasitic components in the output spectrum of the ETPS, which get into the LPF bandwidth. The dispersion of the transistors time parameters, inaccuracies of the PWM forming synchronization and dispersion of LPF inductances lead to a significant increase of the side spectral components that are multiples of the PWM frequency. Satisfying the conditions formulated in the paper, which are associated with increasing the accuracy of control signals forming and decreasing the dispersion of the LPF inductances, will make full use of the multi-cell ETPS advantages.","PeriodicalId":305685,"journal":{"name":"2019 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123564348","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
Influence of Penetrating Radiation on Current- Voltage Characteristics of Complementary JFETs 穿透辐射对互补型jfet电流电压特性的影响
2019 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2019-10-01 DOI: 10.1109/EExPolytech.2019.8906794
O. Dvornikov, V. Dziatlau, V. Tchekhovski, N. Prokopenko, A. Bugakova
{"title":"Influence of Penetrating Radiation on Current- Voltage Characteristics of Complementary JFETs","authors":"O. Dvornikov, V. Dziatlau, V. Tchekhovski, N. Prokopenko, A. Bugakova","doi":"10.1109/EExPolytech.2019.8906794","DOIUrl":"https://doi.org/10.1109/EExPolytech.2019.8906794","url":null,"abstract":"The change in the current-voltage characteristics (CVC) of silicon n-JFETs and p-JFETs when exposed to gamma rays 60Co and electrons with the energy of 6 MeV is considered. The obtained approximations of the dependences of the pinch-off voltage and drain current on the fluence of fast electrons are presented.","PeriodicalId":305685,"journal":{"name":"2019 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127356007","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
Measurements and Stabilization of the Radio Signals Time Delay When Their Transmitting Over Long Wideband Analog Fiber Optics Links 无线电信号在长宽带模拟光纤链路上传输时延时的测量与稳定
2019 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2019-10-01 DOI: 10.1109/EExPolytech.2019.8906807
A. Lavrov, S. Ivanov, I. Saenko
{"title":"Measurements and Stabilization of the Radio Signals Time Delay When Their Transmitting Over Long Wideband Analog Fiber Optics Links","authors":"A. Lavrov, S. Ivanov, I. Saenko","doi":"10.1109/EExPolytech.2019.8906807","DOIUrl":"https://doi.org/10.1109/EExPolytech.2019.8906807","url":null,"abstract":"The results of measurements of the time delay in analog wideband fiber-optic links for microwave signal transmission are presented. Fiber-optic links operates in frequency range 0.1...18 GHz. The delay is determined by the results of measurements of the fiber-optic link phase-frequency response performed by using a vector network analyzer with a large number of points in the measuring trace. The length of the fiber-optic link in the experiments extends up to 1000 meters. The results of experiments on stabilizing the microwave signal delay at the fiber-optic link output using a fiber stretcher with piezoelectric control inserted in the link are also considered.","PeriodicalId":305685,"journal":{"name":"2019 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126209210","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
Investigation of Scattering Intensity Dependencies on the Optical System Parameters in Cross-Correlation Spectrometer 互相关光谱仪散射强度与光学系统参数关系的研究
2019 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2019-10-01 DOI: 10.1109/EExPolytech.2019.8906792
Z. Zabalueva, E. Nepomnyashchaya, E. Velichko
{"title":"Investigation of Scattering Intensity Dependencies on the Optical System Parameters in Cross-Correlation Spectrometer","authors":"Z. Zabalueva, E. Nepomnyashchaya, E. Velichko","doi":"10.1109/EExPolytech.2019.8906792","DOIUrl":"https://doi.org/10.1109/EExPolytech.2019.8906792","url":null,"abstract":"The cross-correlation method is an optical method used for studying particle sizes in liquid dispersed samples. In this work, we describe our estimations of the intensity of laser radiation scattering in a cross-correlation spectrometer depending on a number of parameters of the optical system, such as the focal length of the lens system, beam divergence, and the angle between incident beams. With help of presented calculations, one can increase the power of detected scattered signal and signal-to-noise ratio in cross-correlation spectrometers scheme.","PeriodicalId":305685,"journal":{"name":"2019 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125703788","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
EExPolytech 2019 Cover Page EExPolytech 2019封面页
2019 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2019-10-01 DOI: 10.1109/eexpolytech.2019.8906840
{"title":"EExPolytech 2019 Cover Page","authors":"","doi":"10.1109/eexpolytech.2019.8906840","DOIUrl":"https://doi.org/10.1109/eexpolytech.2019.8906840","url":null,"abstract":"","PeriodicalId":305685,"journal":{"name":"2019 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125320811","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
Peculiarities in the Formation of Multilayer Systems on the Basis of Porous Silicon 在多孔硅基础上形成多层体系的特性
2019 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2019-10-01 DOI: 10.1109/EExPolytech.2019.8906831
A. Lenshin, V. Kashkarov, P. Seredin, B. Agapov, N. Skopintseva, D. Minakov
{"title":"Peculiarities in the Formation of Multilayer Systems on the Basis of Porous Silicon","authors":"A. Lenshin, V. Kashkarov, P. Seredin, B. Agapov, N. Skopintseva, D. Minakov","doi":"10.1109/EExPolytech.2019.8906831","DOIUrl":"https://doi.org/10.1109/EExPolytech.2019.8906831","url":null,"abstract":"Using scanning electron microscopy and infrared spectroscopy, some peculiarities in the formation of multilayer porous silicon were investigated. The effect of the changes in the current density during electrochemical etching of silicon on the composition of chemical bonds for the obtained porous structure was found.","PeriodicalId":305685,"journal":{"name":"2019 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122613901","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
Phase Noise Simulation of Microwave Reference Oscillator Based on the MMIC Amplifier 基于MMIC放大器的微波参考振荡器相位噪声仿真
2019 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2019-10-01 DOI: 10.1109/EExPolytech.2019.8906818
E. Egorov, V. M. Malyshev
{"title":"Phase Noise Simulation of Microwave Reference Oscillator Based on the MMIC Amplifier","authors":"E. Egorov, V. M. Malyshev","doi":"10.1109/EExPolytech.2019.8906818","DOIUrl":"https://doi.org/10.1109/EExPolytech.2019.8906818","url":null,"abstract":"In this article the computer method for calculating phase noise of reference microwave oscillators based on microwave MMIC amplifiers is considered. The calculations are based on the experimental dependence of amplifier phase noise on input power. Examples of calculation of microwave reference oscillators with an oscillatory system based on a dielectric resonator with unloaded Q factor of 20,000 are given. It is shown that using MMIC HMC-C072 as a part of such an oscillator, it is possible to achieve a phase noise level -136.8 dBc/Hz at 10 kHz offset for an operating frequency of 9.74 GHz.","PeriodicalId":305685,"journal":{"name":"2019 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134392214","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
Positioning for Location-Aware Beamforming in 5G Ultra-Dense Networks 5G超密集网络中位置感知波束成形的定位
2019 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2019-10-01 DOI: 10.1109/EExPolytech.2019.8906825
V. Lazarev, G. Fokin, I. Stepanets
{"title":"Positioning for Location-Aware Beamforming in 5G Ultra-Dense Networks","authors":"V. Lazarev, G. Fokin, I. Stepanets","doi":"10.1109/EExPolytech.2019.8906825","DOIUrl":"https://doi.org/10.1109/EExPolytech.2019.8906825","url":null,"abstract":"5G ultra-dense radio networks enhance utilization of spatial dimension by wide implementation of location-aware beamforming and interference mitigation techniques. Successful realization of simultaneous transmission and reception is possible by means of preliminary positioning of neighboring user equipment. Contribution of the current research is positioning accuracy limits estimation of user equipment using direction of arrival measurement processing in three-dimensional space with metrics of Cramer-Rao lower bound ellipsoid. Resulting accuracy limits were analyzed and visualized to assist in proper access nodes layout.","PeriodicalId":305685,"journal":{"name":"2019 IEEE International Conference on Electrical Engineering and Photonics (EExPolytech)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125373329","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: 20
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