Pub Date : 2020-07-01DOI: 10.1109/SYNCHROINFO49631.2020.9166044
I. O. Yuskov, E. P. Stroganova
One of the most important elements of using neural networks in the near future will be the preservation of interaction between different configurations in the field of wireless communication networks, which will meet the existing diversity and meet the requirements that arise when creating and operating networks. One of the most important tasks will be the communication network, which will create a domain for the selected fragment of the existing physical network. It is also worth noting that they are presented for end-to-end communication with the core of one network with another. At the same time, this connection is considered as the development and integration of different networks into a single neural network model for building a system for corporate needs and tasks.
{"title":"Applying a Neural Network Approach to Monitoring Corporate Networks with Various Configurations","authors":"I. O. Yuskov, E. P. Stroganova","doi":"10.1109/SYNCHROINFO49631.2020.9166044","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO49631.2020.9166044","url":null,"abstract":"One of the most important elements of using neural networks in the near future will be the preservation of interaction between different configurations in the field of wireless communication networks, which will meet the existing diversity and meet the requirements that arise when creating and operating networks. One of the most important tasks will be the communication network, which will create a domain for the selected fragment of the existing physical network. It is also worth noting that they are presented for end-to-end communication with the core of one network with another. At the same time, this connection is considered as the development and integration of different networks into a single neural network model for building a system for corporate needs and tasks.","PeriodicalId":255578,"journal":{"name":"2020 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126082753","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}
Pub Date : 2020-07-01DOI: 10.1109/SYNCHROINFO49631.2020.9166041
I. Peshkov, N. Fortunova, I. Zaitseva, Y. Nechaev
The article considers the problem of applying digital beamforming to circular, cube, conical, planar and spherical antenna arrays (AA). It is known that the geometry of antenna arrays significantly influences the characteristics of beamforming, the most important of which is the possibility of locating the maximum only in the azimuth plane. To overcome this problem, planar and conformal arrays were considered for tasks which required the location of the maximum of the radiation pattern in both the azimuth and elevation planes for more accurate amplification of the desired signal. A statistically optimal noise reduction algorithm for a digital antenna array was simulated as a part of a simple communication system using circular, cube, conical, planar and spherical antenna arrays models. The influence of the directive gain of an individual antenna element on such characteristics of digital beamforming as peak power, side lobe level, null depth, gain factor, and also bit error probability for various types of signal modulation were studied. The limits of the directive gain change of an individual element are determined, at which the minimum error of information transmission is achieved.
{"title":"The Comparison of Digital Beamforming Technology for Optimal Noise Reduction in Conformal Antenna Arrays with Directive Radiators","authors":"I. Peshkov, N. Fortunova, I. Zaitseva, Y. Nechaev","doi":"10.1109/SYNCHROINFO49631.2020.9166041","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO49631.2020.9166041","url":null,"abstract":"The article considers the problem of applying digital beamforming to circular, cube, conical, planar and spherical antenna arrays (AA). It is known that the geometry of antenna arrays significantly influences the characteristics of beamforming, the most important of which is the possibility of locating the maximum only in the azimuth plane. To overcome this problem, planar and conformal arrays were considered for tasks which required the location of the maximum of the radiation pattern in both the azimuth and elevation planes for more accurate amplification of the desired signal. A statistically optimal noise reduction algorithm for a digital antenna array was simulated as a part of a simple communication system using circular, cube, conical, planar and spherical antenna arrays models. The influence of the directive gain of an individual antenna element on such characteristics of digital beamforming as peak power, side lobe level, null depth, gain factor, and also bit error probability for various types of signal modulation were studied. The limits of the directive gain change of an individual element are determined, at which the minimum error of information transmission is achieved.","PeriodicalId":255578,"journal":{"name":"2020 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115073824","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}
Pub Date : 2020-07-01DOI: 10.1109/SYNCHROINFO49631.2020.9166029
S. Dymkova, A. Dymkov
We see our world in three dimensions. Geographic Information System (GIS) adds another dimension to a two-dimensional image and allows you to reproduce geographic data with photographic accuracy or use three-dimensional symbols to visualize quantitative data. Three-dimensional maps are compiled and developed using completely different technologies, but most often it is an interactive work that combines the capabilities of modern graphics and GIS software with a person's understanding of what product should be obtained as a result of the work. The aim of this work is to study the possibilities of three-dimensional maps using GIS technologies and find the best method to create individual detailed routes. This method can be useful for quickly solving problems to create individual tracks using a minimum set of tools and software. The article also suggests options for using this method.
{"title":"Synchronizing of moving object with novel 3D maps imaging","authors":"S. Dymkova, A. Dymkov","doi":"10.1109/SYNCHROINFO49631.2020.9166029","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO49631.2020.9166029","url":null,"abstract":"We see our world in three dimensions. Geographic Information System (GIS) adds another dimension to a two-dimensional image and allows you to reproduce geographic data with photographic accuracy or use three-dimensional symbols to visualize quantitative data. Three-dimensional maps are compiled and developed using completely different technologies, but most often it is an interactive work that combines the capabilities of modern graphics and GIS software with a person's understanding of what product should be obtained as a result of the work. The aim of this work is to study the possibilities of three-dimensional maps using GIS technologies and find the best method to create individual detailed routes. This method can be useful for quickly solving problems to create individual tracks using a minimum set of tools and software. The article also suggests options for using this method.","PeriodicalId":255578,"journal":{"name":"2020 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116233043","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}
Pub Date : 2020-07-01DOI: 10.1109/SYNCHROINFO49631.2020.9166040
I. V. Strelnikov, I. Ryabov, E. S. Klyuzhev
Principles of designing direct digital synthesizers, based on the direct digital synthesis method are described. Their advantages and disadvantages in comparison with synthesizers of the indirect synthesis, based on the phase-locked loop are given. A new structure of the direct digital synthesizer of phase-manipulated signals is presented.
{"title":"Direct Digital Synthesizer of Phase-Manipulated Signals, Based on the Direct Digital Synthesis Method","authors":"I. V. Strelnikov, I. Ryabov, E. S. Klyuzhev","doi":"10.1109/SYNCHROINFO49631.2020.9166040","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO49631.2020.9166040","url":null,"abstract":"Principles of designing direct digital synthesizers, based on the direct digital synthesis method are described. Their advantages and disadvantages in comparison with synthesizers of the indirect synthesis, based on the phase-locked loop are given. A new structure of the direct digital synthesizer of phase-manipulated signals is presented.","PeriodicalId":255578,"journal":{"name":"2020 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121885695","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}
Pub Date : 2020-07-01DOI: 10.1109/SYNCHROINFO49631.2020.9166083
M. Zhodzishsky, R. Kurynin, A. Veitsel
The paper is devoted to a radical way to increase vibration resistance of global navigation satellite systems (GNSS) signal receivers (GLONASS, GPS, etc.). The method is based on the use of a common (quartz) loop in addition to individual loops– traditional for GNSS receivers phase locked loops (PLL), each of which monitors a separate radio signal of one of the GNSSs. Such a system with one common loop and many individual loops will be called quartz locked loop (QLL) system. In the absence of common loop, to increase the vibration resistance, the PLL band is expanded, but this leads to a decrease in the noise immunity of the receiver. The method discussed in the paper makes it possible to increase the vibration resistance much more than it can be done by expanding the band of independent PLLs, and at the same time practically avoids reducing noise immunity of GNSS receivers. Different analytical methods (based on z-transformations) are used in the paper, as well as a simulation method (only some results are given without detail description), semi-natural simulation, and full-scale tests carried out with a vibrational bench. In the paper the specified methods of semi-natural simulation and full-scale tests are used for studying the QLL system, as well as systems of independent PLLs.
{"title":"A Radical Approach to Reducing Effects of Quartz Crystal Oscillator Instability on GNSS Receiver Performance","authors":"M. Zhodzishsky, R. Kurynin, A. Veitsel","doi":"10.1109/SYNCHROINFO49631.2020.9166083","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO49631.2020.9166083","url":null,"abstract":"The paper is devoted to a radical way to increase vibration resistance of global navigation satellite systems (GNSS) signal receivers (GLONASS, GPS, etc.). The method is based on the use of a common (quartz) loop in addition to individual loops– traditional for GNSS receivers phase locked loops (PLL), each of which monitors a separate radio signal of one of the GNSSs. Such a system with one common loop and many individual loops will be called quartz locked loop (QLL) system. In the absence of common loop, to increase the vibration resistance, the PLL band is expanded, but this leads to a decrease in the noise immunity of the receiver. The method discussed in the paper makes it possible to increase the vibration resistance much more than it can be done by expanding the band of independent PLLs, and at the same time practically avoids reducing noise immunity of GNSS receivers. Different analytical methods (based on z-transformations) are used in the paper, as well as a simulation method (only some results are given without detail description), semi-natural simulation, and full-scale tests carried out with a vibrational bench. In the paper the specified methods of semi-natural simulation and full-scale tests are used for studying the QLL system, as well as systems of independent PLLs.","PeriodicalId":255578,"journal":{"name":"2020 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"150 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122225057","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}
Pub Date : 2020-07-01DOI: 10.1109/SYNCHROINFO49631.2020.9166076
A. Smirnov
The scope of this work is regularization approaches aimed to improve accuracy of identification of predistorter for power amplifier (PA) linearization. Use of regularization is motivated by intrinsic losses of indirect learning (IL) architecture and least-squares (LS) criterion of identification against a backdrop of an always present fidelity error of the polynomial expansion model of predistorter. Presented unified view covers regularization effects produced by numerical solver of identification problem, truncation of Volterra series model of predistorter and reduction of sampling frequency ($F_{mathrm{s}}$) of test signals for identification. The impacts of different approaches on linearization performance are studied separately and then optimized in joint using test bench model of memory nonlinearity. It is shown that with optimal regularization setup and use of appropriate preconditioning of test signal performance of IL/LS approach is very close to reference predistorter derived analytically.
{"title":"Use of Regularization in Indirect Learning Identification of Predistorter","authors":"A. Smirnov","doi":"10.1109/SYNCHROINFO49631.2020.9166076","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO49631.2020.9166076","url":null,"abstract":"The scope of this work is regularization approaches aimed to improve accuracy of identification of predistorter for power amplifier (PA) linearization. Use of regularization is motivated by intrinsic losses of indirect learning (IL) architecture and least-squares (LS) criterion of identification against a backdrop of an always present fidelity error of the polynomial expansion model of predistorter. Presented unified view covers regularization effects produced by numerical solver of identification problem, truncation of Volterra series model of predistorter and reduction of sampling frequency ($F_{mathrm{s}}$) of test signals for identification. The impacts of different approaches on linearization performance are studied separately and then optimized in joint using test bench model of memory nonlinearity. It is shown that with optimal regularization setup and use of appropriate preconditioning of test signal performance of IL/LS approach is very close to reference predistorter derived analytically.","PeriodicalId":255578,"journal":{"name":"2020 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128318879","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}
Pub Date : 2020-07-01DOI: 10.1109/SYNCHROINFO49631.2020.9166052
V. Priputin, S. Sokolov, N. A. Kandaurov
This article presents the results of implementing a discrete frequency (DF) demodulator with Reed-Solomon decoding on a processor with ARM architecture. There Is description of the digital DF demodulator, it's software realization on the RK3288 processor, and the effectiveness of the proposed solutions is analyzed.
{"title":"Implementation of the Discrete Frequency Demodulator on Processor with ARM Architecture","authors":"V. Priputin, S. Sokolov, N. A. Kandaurov","doi":"10.1109/SYNCHROINFO49631.2020.9166052","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO49631.2020.9166052","url":null,"abstract":"This article presents the results of implementing a discrete frequency (DF) demodulator with Reed-Solomon decoding on a processor with ARM architecture. There Is description of the digital DF demodulator, it's software realization on the RK3288 processor, and the effectiveness of the proposed solutions is analyzed.","PeriodicalId":255578,"journal":{"name":"2020 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120948546","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}
Pub Date : 2020-07-01DOI: 10.1109/SYNCHROINFO49631.2020.9166127
K. Bykov, L. Kazakov, E. Selyanskaya
The article discusses the features of the development of signal-code structures of a spread spectrum signals for channels with packet errors. Among these channels is the UAV control channel located at a great distance from the ground control station (channel A2G). The channel model is complex due to a whole set of factors, which include multipath, the unsteady nature of external conditions, and low declination angles. The last condition leads to a significant spreading of the power delay profile, which in the presence of Doppler scattering causes the phenomenon of error packing. Additional restrictions in solving the problem are due to the requirement to ensure the secrecy of the transmission channel. The paper investigates the multiplicity of packet errors at the channel output. An original result was obtained on reducing the multiplicity due to the use of a matched filter with embedded PSP, which formed the basis of the signal-code structures with Reed-Solomon channel coding.
{"title":"Signal-Code Design for Spread Spectrum Channels with Packet Errors Occuring","authors":"K. Bykov, L. Kazakov, E. Selyanskaya","doi":"10.1109/SYNCHROINFO49631.2020.9166127","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO49631.2020.9166127","url":null,"abstract":"The article discusses the features of the development of signal-code structures of a spread spectrum signals for channels with packet errors. Among these channels is the UAV control channel located at a great distance from the ground control station (channel A2G). The channel model is complex due to a whole set of factors, which include multipath, the unsteady nature of external conditions, and low declination angles. The last condition leads to a significant spreading of the power delay profile, which in the presence of Doppler scattering causes the phenomenon of error packing. Additional restrictions in solving the problem are due to the requirement to ensure the secrecy of the transmission channel. The paper investigates the multiplicity of packet errors at the channel output. An original result was obtained on reducing the multiplicity due to the use of a matched filter with embedded PSP, which formed the basis of the signal-code structures with Reed-Solomon channel coding.","PeriodicalId":255578,"journal":{"name":"2020 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114196981","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}
Pub Date : 2020-07-01DOI: 10.1109/SYNCHROINFO49631.2020.9165999
A. Chernov, M. Ryabova, V. Ovchinnikov, A. Kislitsin
Paper presents a technique for calculating the integrated power delay profile of a wideband HF radio channel. Studies focused on the ionospheric radio links. The specific objective of the research were the dependences of the areas of a priori uncertainty of the average delay and the delay window on the path length and geophysical factors. An algorithm for maintaining synchronization of terminals of the SDR chirp ionosonde.
{"title":"Simulation Study of Volumetric Models of Delay Parameters of Wideband HF Radio Signals on Radio Links of Various Lengths","authors":"A. Chernov, M. Ryabova, V. Ovchinnikov, A. Kislitsin","doi":"10.1109/SYNCHROINFO49631.2020.9165999","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO49631.2020.9165999","url":null,"abstract":"Paper presents a technique for calculating the integrated power delay profile of a wideband HF radio channel. Studies focused on the ionospheric radio links. The specific objective of the research were the dependences of the areas of a priori uncertainty of the average delay and the delay window on the path length and geophysical factors. An algorithm for maintaining synchronization of terminals of the SDR chirp ionosonde.","PeriodicalId":255578,"journal":{"name":"2020 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114221531","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}
Pub Date : 2020-07-01DOI: 10.1109/SYNCHROINFO49631.2020.9166032
A. S. Pshenichkin, K. Klimov
The main features of summing the power of the amplifiers of the output stage of the radar transmitter are considered, the implementation of the phase correction in the amplification channels and the algorithm of its functioning are described, the results of experimental studies confirming the operability and effectiveness of such a concept are presented.
{"title":"The System of Summed Signals' Phase Correction of Solid State Amplifiers in Output Stages of Transmitters in Perspective Radars","authors":"A. S. Pshenichkin, K. Klimov","doi":"10.1109/SYNCHROINFO49631.2020.9166032","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO49631.2020.9166032","url":null,"abstract":"The main features of summing the power of the amplifiers of the output stage of the radar transmitter are considered, the implementation of the phase correction in the amplification channels and the algorithm of its functioning are described, the results of experimental studies confirming the operability and effectiveness of such a concept are presented.","PeriodicalId":255578,"journal":{"name":"2020 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125714288","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}
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