Pub Date : 2019-07-01DOI: 10.1109/SYNCHROINFO.2019.8814195
A. B. Silantyev, J. Olim, C. Fernandu
In this paper we consider a surveillance radar with an additional multiscanning observation device. Its functioning is based on coprocessing of the results of several scannings. In each multiscanning observation channel as part of the device the well-known procedure “track-before-detect” is implemented and it is supposed to process echo signals from a different number of space scannings stored in the buffer storage. The efficiency of the proposed multi-channel procedure is analysed.
{"title":"Multi-Channel Structure of Multiscanning Observation Device Based on Hough Transform in Surveillance Radar","authors":"A. B. Silantyev, J. Olim, C. Fernandu","doi":"10.1109/SYNCHROINFO.2019.8814195","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2019.8814195","url":null,"abstract":"In this paper we consider a surveillance radar with an additional multiscanning observation device. Its functioning is based on coprocessing of the results of several scannings. In each multiscanning observation channel as part of the device the well-known procedure “track-before-detect” is implemented and it is supposed to process echo signals from a different number of space scannings stored in the buffer storage. The efficiency of the proposed multi-channel procedure is analysed.","PeriodicalId":363848,"journal":{"name":"2019 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125023132","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 : 2019-07-01DOI: 10.1109/SYNCHROINFO.2019.8814005
A. Smirnov
Nonlinear distortion with memory perturbing the wideband signal in power amplifiers (PAs) is challenging both for analytical treatment and implementation of practical PA linearizers. In the present letter we focus on a simplified cascaded model of the PA memory nonlinearity that enables to approach such problems as the effect of modeling and identification errors and undersampling on the digital predistortion performance. Based on the presented analysis, we propose a cascaded nonlinearity model for predistorter with a 2-step identification algorithm using look-up table to improve stability of the model identification. Proposed model is shown to have significant performance gain compared to conventional memory polynomial nonlinearity model for specific models of PA distortion.
{"title":"Cascaded Model of Nonlinear Operator for Digital Predistortion with Memory","authors":"A. Smirnov","doi":"10.1109/SYNCHROINFO.2019.8814005","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2019.8814005","url":null,"abstract":"Nonlinear distortion with memory perturbing the wideband signal in power amplifiers (PAs) is challenging both for analytical treatment and implementation of practical PA linearizers. In the present letter we focus on a simplified cascaded model of the PA memory nonlinearity that enables to approach such problems as the effect of modeling and identification errors and undersampling on the digital predistortion performance. Based on the presented analysis, we propose a cascaded nonlinearity model for predistorter with a 2-step identification algorithm using look-up table to improve stability of the model identification. Proposed model is shown to have significant performance gain compared to conventional memory polynomial nonlinearity model for specific models of PA distortion.","PeriodicalId":363848,"journal":{"name":"2019 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122064746","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 : 2019-07-01DOI: 10.1109/SYNCHROINFO.2019.8814212
S. Presnyakov, N. Kravchenko, A. Kasatkin, S. Mukhin
The concept of building a software system for designing traveling-wave tubes (TWTs) with resonator slow-wave structures (SWSs) and models for its implementation is described. The cm- and mm-wave TWT designs developed on the basis of the VEGA software are presented.
{"title":"Software Complex “VEGA” for Designing cm- and mm-Wave TWT with Resonator Slow-Wave Structures","authors":"S. Presnyakov, N. Kravchenko, A. Kasatkin, S. Mukhin","doi":"10.1109/SYNCHROINFO.2019.8814212","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2019.8814212","url":null,"abstract":"The concept of building a software system for designing traveling-wave tubes (TWTs) with resonator slow-wave structures (SWSs) and models for its implementation is described. The cm- and mm-wave TWT designs developed on the basis of the VEGA software are presented.","PeriodicalId":363848,"journal":{"name":"2019 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"104 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115737820","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 : 2019-07-01DOI: 10.1109/SYNCHROINFO.2019.8814077
E. P. Kubishkin, D. I. Sterin, L. Kazakov, E. Selyanskaya
The problem of spatial adjustment of a group of unmanned aerial vehicles (UAV) from the point of view of minimizing the energy consumed is considered. An algorithm for constructing the optimal control of each UAV, providing the total minimum consumption of energy costs for spatial adjustment is introduced. On the basis of the received algorithm the computer model is realized. The results of simulation of different variants of transposition of the group.
{"title":"Optimal Control Flight the Restructuring of the Group of Unmanned Aerial Vehicles","authors":"E. P. Kubishkin, D. I. Sterin, L. Kazakov, E. Selyanskaya","doi":"10.1109/SYNCHROINFO.2019.8814077","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2019.8814077","url":null,"abstract":"The problem of spatial adjustment of a group of unmanned aerial vehicles (UAV) from the point of view of minimizing the energy consumed is considered. An algorithm for constructing the optimal control of each UAV, providing the total minimum consumption of energy costs for spatial adjustment is introduced. On the basis of the received algorithm the computer model is realized. The results of simulation of different variants of transposition of the group.","PeriodicalId":363848,"journal":{"name":"2019 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"722 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122000797","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 : 2019-07-01DOI: 10.1109/SYNCHROINFO.2019.8813927
A. D. Kuznetsov, A. Yelizarov, I. Nazarov
In this paper, an overview of slow wave systems and metamaterials using in devices intended for application in the area of biomedical engineering is presented. Short characteristic of physical and engineering specifications of slow waves systems and metamaterials are listed. In addition, possible variants of upgrading an exciting engineering solution by dint of slow wave systems and metamaterials application are offered.
{"title":"Application of Slow Wave Systems and Metamaterials in Biomedical Engineering","authors":"A. D. Kuznetsov, A. Yelizarov, I. Nazarov","doi":"10.1109/SYNCHROINFO.2019.8813927","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2019.8813927","url":null,"abstract":"In this paper, an overview of slow wave systems and metamaterials using in devices intended for application in the area of biomedical engineering is presented. Short characteristic of physical and engineering specifications of slow waves systems and metamaterials are listed. In addition, possible variants of upgrading an exciting engineering solution by dint of slow wave systems and metamaterials application are offered.","PeriodicalId":363848,"journal":{"name":"2019 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125620379","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 : 2019-07-01DOI: 10.1109/SYNCHROINFO.2019.8814034
R. Kurynin
Modern global navigation satellite systems (GNSS) receivers use temperature-compensated crystal oscillators (TCXO) as generators of reference frequency. One of the parameters of quartz oscillators is its stability to output frequency when oscillators are subject to acceleration and vibrations. Such a stability is assessed by g-sensitivity value. Relatively high g-sensitivity of quartz oscillators can result in large tracking errors within circuits of GNSS receivers operating in hard vibrational-dynamic conditions, up to loss of tracking which negatively affect functional capacities of GNSS receivers. The current paper describes a method of estimating g-sensitivity of TCXO mounted on GNSS receiver printed circuit board (PCB). Experimental results have proved the advantage of this method over other known methods of g-sensitivity assessment for TCXO used in GNSS receivers.
{"title":"A Method of Evaluating the g-sensitivity of Quartz Oscillators in GNSS Receivers","authors":"R. Kurynin","doi":"10.1109/SYNCHROINFO.2019.8814034","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2019.8814034","url":null,"abstract":"Modern global navigation satellite systems (GNSS) receivers use temperature-compensated crystal oscillators (TCXO) as generators of reference frequency. One of the parameters of quartz oscillators is its stability to output frequency when oscillators are subject to acceleration and vibrations. Such a stability is assessed by g-sensitivity value. Relatively high g-sensitivity of quartz oscillators can result in large tracking errors within circuits of GNSS receivers operating in hard vibrational-dynamic conditions, up to loss of tracking which negatively affect functional capacities of GNSS receivers. The current paper describes a method of estimating g-sensitivity of TCXO mounted on GNSS receiver printed circuit board (PCB). Experimental results have proved the advantage of this method over other known methods of g-sensitivity assessment for TCXO used in GNSS receivers.","PeriodicalId":363848,"journal":{"name":"2019 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116552235","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 : 2019-07-01DOI: 10.1109/SYNCHROINFO.2019.8814290
A. Trukhina, I. Bogachkov
The influence of structure of optical fibers, varieties and concentration of ligating additives, number of layers on the behavior of the Mandelstam - Brillouin scattering in optical fibers is discussed in this paper. The results of analysis and comparison study of the results for different optical fibers are presented.
{"title":"Investigation of the Influence of the Optical Fiber Structure on the Mandelstam – Brillouin Backscatter Characteristics","authors":"A. Trukhina, I. Bogachkov","doi":"10.1109/SYNCHROINFO.2019.8814290","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2019.8814290","url":null,"abstract":"The influence of structure of optical fibers, varieties and concentration of ligating additives, number of layers on the behavior of the Mandelstam - Brillouin scattering in optical fibers is discussed in this paper. The results of analysis and comparison study of the results for different optical fibers are presented.","PeriodicalId":363848,"journal":{"name":"2019 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131251793","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 : 2019-07-01DOI: 10.1109/SYNCHROINFO.2019.8813931
D. P. Danilaev
There are computational and empirical approaches to analog-to-digital converter (ADC) selection in digital receiver. Simplified calculation methods are based on the idealized ADC model. These methods take into account only the quantization noise associated with the ADC bits number, sampling frequency, signal-to-noise ratio. The calculation results has estimate character. The structural constraints to the ADC parameters are determined with the receiver realization. They must be considered when ADC choosing. The study of theoretical relationships allows identifying the computational models application area limitations. The performed analysis shows wider correlation of the radio frequency channel parameters and different ADC parameters. It is possible to consider these parameters interrelation from with regard to their effect on the received signal conversion accuracy, and make a ADCs choice based on unified methodological positions.
{"title":"Analog-to-Digital Converter Selection for Digital Receiver","authors":"D. P. Danilaev","doi":"10.1109/SYNCHROINFO.2019.8813931","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2019.8813931","url":null,"abstract":"There are computational and empirical approaches to analog-to-digital converter (ADC) selection in digital receiver. Simplified calculation methods are based on the idealized ADC model. These methods take into account only the quantization noise associated with the ADC bits number, sampling frequency, signal-to-noise ratio. The calculation results has estimate character. The structural constraints to the ADC parameters are determined with the receiver realization. They must be considered when ADC choosing. The study of theoretical relationships allows identifying the computational models application area limitations. The performed analysis shows wider correlation of the radio frequency channel parameters and different ADC parameters. It is possible to consider these parameters interrelation from with regard to their effect on the received signal conversion accuracy, and make a ADCs choice based on unified methodological positions.","PeriodicalId":363848,"journal":{"name":"2019 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114337697","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 : 2019-07-01DOI: 10.1109/SYNCHROINFO.2019.8814139
N. Kharina, E. Petrov, L. V. Kladova
Requirements for modern radar systems make it necessary to use complex signals. Signal compression during the filtering gives rise to side lobes that can mask the wanted signal and cause false alarms. Lowering the side-lobe level of the autocorrelation function allows solving the problems of detection and resolution of objects with a low effective scattering surface, negative contrast and high interference level. There are hardware and signaling methods to reduce the level of the side lobes of the autocorrelation function. This article studies the hardware methods for reducing the side-lobes level by using an un-matched filter. It describes a method for constructing an inconsistent filter for maximizing the main lobe level with a given level of side lobes. Mathematical modeling of this filter for sequences of phaze manipulation signals, generated on maximum length sequence, was made and illustrated
{"title":"Unmatched Filters for Autocorrelation Function Side-Lobes Suppression of Complex Radar Signals","authors":"N. Kharina, E. Petrov, L. V. Kladova","doi":"10.1109/SYNCHROINFO.2019.8814139","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2019.8814139","url":null,"abstract":"Requirements for modern radar systems make it necessary to use complex signals. Signal compression during the filtering gives rise to side lobes that can mask the wanted signal and cause false alarms. Lowering the side-lobe level of the autocorrelation function allows solving the problems of detection and resolution of objects with a low effective scattering surface, negative contrast and high interference level. There are hardware and signaling methods to reduce the level of the side lobes of the autocorrelation function. This article studies the hardware methods for reducing the side-lobes level by using an un-matched filter. It describes a method for constructing an inconsistent filter for maximizing the main lobe level with a given level of side lobes. Mathematical modeling of this filter for sequences of phaze manipulation signals, generated on maximum length sequence, was made and illustrated","PeriodicalId":363848,"journal":{"name":"2019 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132197071","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 : 2019-07-01DOI: 10.1109/SYNCHROINFO.2019.8813938
V. L. Karyakin
A variant of the regional SFN network is considered, which allows, by optimizing its parameters, to provide the required data transfer rate, the necessary work stability margin, technical feasibility and ensuring a reduction in operating costs in comparison with the known technical solutions
{"title":"Regional Digital TV Broadcast Network DVB-T2 Standard with Ground Communication Channels","authors":"V. L. Karyakin","doi":"10.1109/SYNCHROINFO.2019.8813938","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2019.8813938","url":null,"abstract":"A variant of the regional SFN network is considered, which allows, by optimizing its parameters, to provide the required data transfer rate, the necessary work stability margin, technical feasibility and ensuring a reduction in operating costs in comparison with the known technical solutions","PeriodicalId":363848,"journal":{"name":"2019 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134503698","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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