2018Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)最新文献

{"title":"Simulator of the radio channel for testing and experimental testing of radio communication systems of VHF band","authors":"N. M. Tikhomirov, A. A. Chilikin, A. Grechishkin, M. P. Savchenko, N. Fortunova","doi":"10.1109/synchroinfo.2018.8456946","DOIUrl":"https://doi.org/10.1109/synchroinfo.2018.8456946","url":null,"abstract":"In the case of complex systems, the creation of their mathematical model and experimentation with it can cause great difficulties the model itself is extremely complex or experimentation with the model requires a lot of time. In addition, when creating a model, only the most essential properties of the elements of the system and the functional relationships between them are taken into account (Fig. 1).","PeriodicalId":280881,"journal":{"name":"2018Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132421039","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}

{"title":"Simulation and Analysis of Transmission Range Effect on AODV and OLSR Routing Protocols in Flying Ad Hoc Networks (FANETs) formed by Mini-UAVs with Different Node Density","authors":"A. V. Leonov, G. Litvinov, D. A. Korneev","doi":"10.1109/SYNCHROINFO.2018.8457014","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2018.8457014","url":null,"abstract":"Wireless technologies can be used in self-organizing networks of unmanned aerial vehicles (Flying Ad Hoc Networks, FANETs). It is concerned with the deployment of multiple small UAVs. AODV and OLSR routing protocols performance in ad hoc networks formed by mini UAVs is studied using NS-2 simulation tool. The protocols are investigated with varying metrics such as UAV density, node mobility, and transmission range. These parameters are proven to affect the evaluation and performance metrics considerably. The performance metrics under study are dropped packets and packet delivery ratio. These metrics have an obvious impact on the variation of transmission range and density.","PeriodicalId":280881,"journal":{"name":"2018Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134166997","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}

{"title":"Non-harmonic spectrums of Lorenz system in the conditions of complex noise effects","authors":"V. V. Afanasiev, S. Loginov","doi":"10.1109/SYNCHROINFO.2018.8456994","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2018.8456994","url":null,"abstract":"The article considers non-harmonic spectrums of a non-linear Lorenz system in the conditions of a complex of additive and multiplicative noise effects on the systems’ parameters. Non-harmonic spectrums have been obtained based on the representation of signal realizations in the form of impulse random processes. The influence of spectral characteristics of noise effects on non-harmonic signal spectrums has been shown. The obtained results may be used for diagnostics of chaos generators under the conditions of noise effects.","PeriodicalId":280881,"journal":{"name":"2018Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133410358","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}

{"title":"CD Monitoring Based On Bragg Notch Filter Reflection Spectrum Analysis","authors":"V. Andreev, V. Y. Kazarov, O. Morozov, A. Sakhabutdinov, I. Nureev","doi":"10.1109/SYNCHROINFO.2018.8456927","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2018.8456927","url":null,"abstract":"New approaches are presented to the process of measuring the chromatic dispersion of a high-speed communication channel based on the classical method for determining the ratio of the radio frequency signal power. The power ratio is recorded at the output of two identical photodetectors, one of which is equipped with a Bragg notch filter at the carrier frequency. New approaches are based on preliminary amplitude modulation of an optical carrier with a a radio clock signal frequency with the formation of an additional amplitude-unbalanced probe radiation to determine the shift between the central wavelengths of the communication channel and the Bragg notch filter, and also the use of methods to increase the signal-to-noise ratio of the measurements. For each position of the filter, an analysis of the parameters of the low-frequency signals at the output of the photodetector is made and the amplitude of the oscillations at DC, single and double probing frequencies are determined. As a result, a single-valued relationship was found between the resulting amplitudes at the output of the photodetector and the position of the central wavelength of the Bragg notch filter. Elimination of the influence of the spectral shift makes it possible to obtain a gain of up to 3 dB for the accuracy of measurements. The registration of information at the probing frequency or doubled probing frequency allows obtaining a gain in the signal-to-noise ratio of measurements up to 10–13 dB and performing chromatic dispersion measurements at a signal-to-noise ratio at a clock frequency of 3–5 dB. The penalty for using additional probing frequencies is up to 1 dB.","PeriodicalId":280881,"journal":{"name":"2018Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133422226","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}

{"title":"Development of the mobile information system with the use of meteoral communication channels","authors":"A. Rybakov","doi":"10.1109/SYNCHROINFO.2018.8456974","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2018.8456974","url":null,"abstract":"Previously, there was no way to detect and use the meteor path before it dissipated, so the meteoric connection was a rarity, had very little practical application. The emergence of modern low-cost technologies and high-speed digital equipment has led to dramatic changes in meteorological communication technology that has become commercially available and can provide an ”out of line of sight” link (ELOS - beyond line of sight) when other means of transmission are not available.Typically, a meteorological communication transceiver network consists of one or more base stations and a number of remote terminals. The base stations communicate with remote terminals and other base stations. The terminals communicate only with the base stations. Communication of one terminal with another can be carried out through the base station. When the corresponding trace is detected and its ”quality” is determined, some of the digitized data is transmitted by a short pulse. The existence of a trace is determined by the reception of a test signal transmitted by the base station or another network terminal. When another terminal receives a test signal, it sends a confirmation to the base station, indicating that the used trace exists and that the terminal is ready for data exchange. This link establishment acknowledgment uses a significant portion of the useful lifetime of the track and takes place every time the data is transmitted over a meteoric link, often several times during the lifetime of the meteor path. The time for this exchange is sacrificed in favor of the reliability of the system. The solution to the task of creating a mobile information support system using meteoric communication channels. The system is used as part of a comprehensive information system for navigational safety of the Northern Sea Route. The material of this article is devoted to the search for the optimal structure of the transmit-receive path of a radio communication complex for the transmission of data through a meteoric link. The developed equipment is designed to operate as part of a comprehensive information system for navigational safety of the Northern Sea Route. Prospective technologies of creating radio-transmitting devices are considered. The second section provides a brief description of the domestic and foreign transmitting and receiving devices built using SDR technology. The choice of the transceiver for its use in the meteoric communication channel is justified. An embodiment of the mobile (portable) system is considered. The results of approbation of technical solutions are given.","PeriodicalId":280881,"journal":{"name":"2018Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127428927","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}

{"title":"Testing of generators of pseudo-random signals based on a Lorenz system, realized over a Galois finite field","authors":"S. Loginov, M. Zuev","doi":"10.1109/SYNCHROINFO.2018.8457039","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2018.8457039","url":null,"abstract":"FIPS 140–2 tests of new class of generators pseudorandom signals, built based on modified Lorenz system, realized over a Galois finite field were considered. Fixed point arithmetic were utilized in new class generators. The estimates of the correspondence of binary sequences formed on the basis of the Lorentz system to the requirements of the FIPS 140–2 test with the variation of the system parameters were obtained. The results of the work can be used in the construction of communication systems with broadband signals, modeling and cryptography.","PeriodicalId":280881,"journal":{"name":"2018Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115714525","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}

{"title":"Radiofotonics in satellite navigation and communication problems","authors":"L. Belov, A. D. Shcherbinin","doi":"10.1109/SYNCHROINFO.2018.8457028","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2018.8457028","url":null,"abstract":"The article presents an analytical overview of the achievements in the development of methods, devices and assemblies of radio frequency photonics. New possibilities are revealed that are opened by the use of technologies for the generation, formation and processing of optical signals in radio frequency devices. Structures and characteristics are considered.Schemes and parameters of optical frequency standards based on femtosecond lasers with a scheme for frequency stability transfer to the radio-frequency range, made on the basis of fiber-optical technologies are presented. The article shows that such standards ensure the stability of the frequency of reference signals by one to three orders of magnitude higher than in typical frequency standards. The use of fiber optic designs of such standards allows creating on-board satellite navigation and communication systems with frequency stability of the order of 10–18 for averaging time of about 100 s.The review shows the results of the practical development and application of new optical frequency and time standards for improving the means and networks of time-frequency provision on the Earth and in outer space in solving problems of navigation, metrology and astrophysical research.","PeriodicalId":280881,"journal":{"name":"2018Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"2006 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117044278","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}

{"title":"Z-transform Application for Exponential Approximation of Time-Functions","authors":"M. V. Balashkov, V. M. Bogachev","doi":"10.1109/SYNCHROINFO.2018.8456979","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2018.8456979","url":null,"abstract":"The new method of interpolation/approximation of the time-functions by exponential polynomials (complete and abbreviated), in the general case, by complex polynomials is suggested. A solution is based on the z-transform of the single-variable complex function, which is given by the discrete set of equidistant samples. This problem is solved for the first time for dynamic systems with natural frequencies of any order. The examples of this method application are presented.","PeriodicalId":280881,"journal":{"name":"2018Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123510904","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}

{"title":"TECHNOLOGY OF MODULATION BY SYNTHESIZED DIGITAL METHOD OF CARRIER IN ANALOGUE SIGNAL TRANSMISSION SYSTEMS","authors":"A. Salauyou, M. U. Ehunou","doi":"10.1109/SYNCHROINFO.2018.8457011","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2018.8457011","url":null,"abstract":"The technology of modulation synthesized by the digital method with the help of the RF synthesizer ADF 4350 is considered in the systems of analog video signal transmission. Presented by technical solutions for non-standard use of the synthesizer as a modulator.","PeriodicalId":280881,"journal":{"name":"2018Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"333 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123512457","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}

{"title":"Features rate estimation options binary codewords with the digitalization of the signal","authors":"A. S. Adzhemov, A. Y. Kudryashova","doi":"10.1109/SYNCHROINFO.2018.8456929","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2018.8456929","url":null,"abstract":"In the modern information society, the issues of assessing the quality of information transfer are becoming more urgent. To assess the quality of transmitted binary signals, the author studies the power of selection of binary code combinations in the transmission of a digital signal. As a result of the study, a formula was derived for calculating the power of the variance of code combinations for redundant and non-redundant codes. The result obtained allows us to estimate the speed of computation when searching for optimal methods of coding.","PeriodicalId":280881,"journal":{"name":"2018Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116855451","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}