Pub Date : 2019-07-01DOI: 10.1109/SYNCHROINFO.2019.8814267
E. M. Lobov, V. Varlamov, A. Sattarova
This article describes a method to compensate distortions carried by analog analysis filters of a hybrid filter bank. Were obtained expressions describing hybrid filter bank based ADC with addition of compensator. Described processing system was modeled and quantitative measurements of signal distortions were calculated for system with and without compensator. Were shown that insertion of a compensator can significantly improve the characteristics of the system. Methods to increase the computational efficiency of the compensator were described. Dependencies were obtained between the accuracy of compensation and the computational complexity of the compensator.
{"title":"Digital compensation for uneven frequency response of analog filters from the hybrid filter bank","authors":"E. M. Lobov, V. Varlamov, A. Sattarova","doi":"10.1109/SYNCHROINFO.2019.8814267","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2019.8814267","url":null,"abstract":"This article describes a method to compensate distortions carried by analog analysis filters of a hybrid filter bank. Were obtained expressions describing hybrid filter bank based ADC with addition of compensator. Described processing system was modeled and quantitative measurements of signal distortions were calculated for system with and without compensator. Were shown that insertion of a compensator can significantly improve the characteristics of the system. Methods to increase the computational efficiency of the compensator were described. Dependencies were obtained between the accuracy of compensation and the computational complexity of the compensator.","PeriodicalId":363848,"journal":{"name":"2019 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"38 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":"134257523","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.2019.8814098
E. Petrov, N. Kharina
The paper discusses a method of increasing the resolution of radar images (RI) in range and azimuth in the presence of a background complex in its structure, when the parameters of the reflected signals from single targets become random. The RI is formed on the basis of a side-looking radar with synthetic aperture antenna (SAR), which uses an antenna array that operates only on transmission. Binary phase-manipulation (PM) signals belonging to one cluster formed on binary linear recurrent sequences of a maximum period are used as probing signals. Radiation of the probing PM signals is carried out simultaneously in all the beams. Each beam is assigned its own PM signal from the cluster of the PM signals. A receiving device with a recurrent matched filter was synthesized to receive a cluster of the PM signals reflected from single targets of the same azimuth in all SAR beams over the range, based on the representation of binary sequences of the maximum linear recurrent period by the m-complex Markov chain with two states. The absence at the outputs of a recurrent matched filter of the side lobes of the autocorrelation function of the PM signals makes it possible to increase the noise stability of receiving the reflected PM signals by implementing a joint nonlinear filtering of discrete and continuous parameters. Computer simulation of the formation of the radar on the background of natural terrain demonstrates the possibility of obtaining the radar with high resolution range in real time.
{"title":"Filtering of the Reflected Probing PM Signals With the Rayleigh Amplitude in the Formation of High-resolution Radar Images","authors":"E. Petrov, N. Kharina","doi":"10.1109/SYNCHROINFO.2019.8814098","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2019.8814098","url":null,"abstract":"The paper discusses a method of increasing the resolution of radar images (RI) in range and azimuth in the presence of a background complex in its structure, when the parameters of the reflected signals from single targets become random. The RI is formed on the basis of a side-looking radar with synthetic aperture antenna (SAR), which uses an antenna array that operates only on transmission. Binary phase-manipulation (PM) signals belonging to one cluster formed on binary linear recurrent sequences of a maximum period are used as probing signals. Radiation of the probing PM signals is carried out simultaneously in all the beams. Each beam is assigned its own PM signal from the cluster of the PM signals. A receiving device with a recurrent matched filter was synthesized to receive a cluster of the PM signals reflected from single targets of the same azimuth in all SAR beams over the range, based on the representation of binary sequences of the maximum linear recurrent period by the m-complex Markov chain with two states. The absence at the outputs of a recurrent matched filter of the side lobes of the autocorrelation function of the PM signals makes it possible to increase the noise stability of receiving the reflected PM signals by implementing a joint nonlinear filtering of discrete and continuous parameters. Computer simulation of the formation of the radar on the background of natural terrain demonstrates the possibility of obtaining the radar with high resolution range in real time.","PeriodicalId":363848,"journal":{"name":"2019 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"46 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":"134403420","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.2019.8814039
S. Loginov, M. Zuev
The statistical characteristics and results of the FIPS 140–2 tests of a new class of pseudo-random signal generators based on the modified Lorentz, Chua, Dmitriev-Kislov and Anischenko-Astakhov systems over the finite Galois field are considered. The estimates of the signal correlation intervals, as well as histograms of the probability distributions of the generated numbers, are obtained. Evaluation of the compliance of binary sequences formed on the basis of systems with the requirements of the FIPS 140–2 test with variation of systems parameters was obtained. The results of the work can be used in the construction of communication systems with broadband signals, modeling and cryptography.
{"title":"Chaotic Systems Based Pseudo-Random Signal Generators Realized Over a Galois Finite Field","authors":"S. Loginov, M. Zuev","doi":"10.1109/SYNCHROINFO.2019.8814039","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2019.8814039","url":null,"abstract":"The statistical characteristics and results of the FIPS 140–2 tests of a new class of pseudo-random signal generators based on the modified Lorentz, Chua, Dmitriev-Kislov and Anischenko-Astakhov systems over the finite Galois field are considered. The estimates of the signal correlation intervals, as well as histograms of the probability distributions of the generated numbers, are obtained. Evaluation of the compliance of binary sequences formed on the basis of systems with the requirements of the FIPS 140–2 test with variation of systems parameters was obtained. The results of the work can be used in the construction of communication systems with broadband signals, modeling and cryptography.","PeriodicalId":363848,"journal":{"name":"2019 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"217 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":"132054619","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.2019.8814131
M. Zhodzishsky, V. Veitsel, R. Kurynin, A. Veitsel
Different dynamic and noise characteristics of hardware-software systems of phase lock loops (PLL) within global navigation satellite systems (GNSS) receivers capable of operating under strong dynamic external effects have been considered in the present paper. Most operations in hardware-software systems are performed in processor at relatively low rate of time discretization, the signals of many satellite channels being successively processed by the processor. In the other, hardware part of the receiver, its own simultaneously operating channels correspond to each PLL system. A theoretical analysis of the considered PLL systems has been carried out by methods based on z-transformations. Then, these PLL systems were compared to each other with the help of simulation modeling in conditions of different dynamic impacts. In conclusion, some recommendations on selection of PLL systems of one or other type depending on GNSS receiver user's requirements have been given. These recommendations reflect the authors' previous experience in developing and designing commercial GNSS receivers.
{"title":"Dynamic and Noise Properties of PLL Circuits in GNSS Receivers","authors":"M. Zhodzishsky, V. Veitsel, R. Kurynin, A. Veitsel","doi":"10.1109/SYNCHROINFO.2019.8814131","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2019.8814131","url":null,"abstract":"Different dynamic and noise characteristics of hardware-software systems of phase lock loops (PLL) within global navigation satellite systems (GNSS) receivers capable of operating under strong dynamic external effects have been considered in the present paper. Most operations in hardware-software systems are performed in processor at relatively low rate of time discretization, the signals of many satellite channels being successively processed by the processor. In the other, hardware part of the receiver, its own simultaneously operating channels correspond to each PLL system. A theoretical analysis of the considered PLL systems has been carried out by methods based on z-transformations. Then, these PLL systems were compared to each other with the help of simulation modeling in conditions of different dynamic impacts. In conclusion, some recommendations on selection of PLL systems of one or other type depending on GNSS receiver user's requirements have been given. These recommendations reflect the authors' previous experience in developing and designing commercial GNSS receivers.","PeriodicalId":363848,"journal":{"name":"2019 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"192 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":"132584061","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.2019.8813974
V. Afanasyev, S. Loginov
The paper investigates non-harmonic spectrums of a non-linear multiscroll system. These spectrums have been obtained based on the representation of signal realizations as impulse random processes. Histograms of parameters of nonharmonic representation and two-parameter spectrums of signals are shown. Signals spectrums have been classified. Opportunities for distinguishing signal types of multiscroll systems have been defined. The directions for the further use of multiscroll systems in confidential communication have been proposed.
{"title":"Non-Harmonic Spectral Analysis of Multiscroll Systems with Dynamic Chaos","authors":"V. Afanasyev, S. Loginov","doi":"10.1109/SYNCHROINFO.2019.8813974","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2019.8813974","url":null,"abstract":"The paper investigates non-harmonic spectrums of a non-linear multiscroll system. These spectrums have been obtained based on the representation of signal realizations as impulse random processes. Histograms of parameters of nonharmonic representation and two-parameter spectrums of signals are shown. Signals spectrums have been classified. Opportunities for distinguishing signal types of multiscroll systems have been defined. The directions for the further use of multiscroll systems in confidential communication have been proposed.","PeriodicalId":363848,"journal":{"name":"2019 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"91 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":"127401136","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.2019.8814197
A. I. Rvzhov, A. Dmitriev, V. Itskov, M. Petrosyan, M. G. Popov
The problem of radio lighting of items and surfaces with a help of artificial incoherent sources of microwave radiation based on dynamic chaos generators is investigated in order to get an opportunity for further observation of these objects with a specific receiving equipment. The image acquisition scheme using artificial radiolight is proposed and tested to build the image of part of environment. Acquired images allow to register differences caused by new objects appeared in the area of interest.
{"title":"Image Acquisition with Artificial Radio Lighting","authors":"A. I. Rvzhov, A. Dmitriev, V. Itskov, M. Petrosyan, M. G. Popov","doi":"10.1109/SYNCHROINFO.2019.8814197","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2019.8814197","url":null,"abstract":"The problem of radio lighting of items and surfaces with a help of artificial incoherent sources of microwave radiation based on dynamic chaos generators is investigated in order to get an opportunity for further observation of these objects with a specific receiving equipment. The image acquisition scheme using artificial radiolight is proposed and tested to build the image of part of environment. Acquired images allow to register differences caused by new objects appeared in the area of interest.","PeriodicalId":363848,"journal":{"name":"2019 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"46 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":"127722667","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.2019.8814031
N. Biriukov, N. Triska, M. L. Schwartz
The article presents some results based on the probabilistic approach, quality assessment of synchronous and asynchronous transport technologies in the plesiochronous network mode. In particular, the results of slippage frequency evaluation in the network elements and their accumulation in the reference connections recommended by ITU-T, as well as the estimation of packet collisions and delay accumulation depending on the load (traffic) in the transmission path are presented. The results were confirmed by computer simulation and measurements.
{"title":"The Analysis of Synchronization Performance in TDM-Based and Packet-Based Transmission","authors":"N. Biriukov, N. Triska, M. L. Schwartz","doi":"10.1109/SYNCHROINFO.2019.8814031","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2019.8814031","url":null,"abstract":"The article presents some results based on the probabilistic approach, quality assessment of synchronous and asynchronous transport technologies in the plesiochronous network mode. In particular, the results of slippage frequency evaluation in the network elements and their accumulation in the reference connections recommended by ITU-T, as well as the estimation of packet collisions and delay accumulation depending on the load (traffic) in the transmission path are presented. The results were confirmed by computer simulation and measurements.","PeriodicalId":363848,"journal":{"name":"2019 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"68 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":"127755932","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.2019.8813920
S. S. Makhrov, D. L. Karkotsky, E. N. Denisova
The article presents a study in the field of creation of a brain microcomputer controlled by means of human brain biosignals. This project is a symbiosis of microcomputer technologies and brain-computer interface and differs from existing analogues in that neurofeedback is carried out not only by external devices as in the case of the classical use of braincomputer interface, but also by a microcomputer, which is part of the brain-computer interface. This approach will create a competitive analogue of smartphones.
{"title":"Headset Microcomputer Controlled by Biosignals of Human Brain","authors":"S. S. Makhrov, D. L. Karkotsky, E. N. Denisova","doi":"10.1109/SYNCHROINFO.2019.8813920","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2019.8813920","url":null,"abstract":"The article presents a study in the field of creation of a brain microcomputer controlled by means of human brain biosignals. This project is a symbiosis of microcomputer technologies and brain-computer interface and differs from existing analogues in that neurofeedback is carried out not only by external devices as in the case of the classical use of braincomputer interface, but also by a microcomputer, which is part of the brain-computer interface. This approach will create a competitive analogue of smartphones.","PeriodicalId":363848,"journal":{"name":"2019 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"32 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":"126688449","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.2019.8813985
V. Kokovkina, V. Antipov, V. Kirnos, A. Priorov
This article describes an algorithm, which builds a three-dimensional map of space according to data of the laser scanning system and the fish eye camera. The algorithm is an integral part of the SLAM algorithm using an extended Kalman filter, which is implemented on a mobile robotic platform, modeled in the ROS environment. The results of the researches of this system in the modeling environment of gazebo are also presented.
{"title":"The Algorithm of EKF-SLAM Using Laser Scanning System and Fisheye Camera","authors":"V. Kokovkina, V. Antipov, V. Kirnos, A. Priorov","doi":"10.1109/SYNCHROINFO.2019.8813985","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2019.8813985","url":null,"abstract":"This article describes an algorithm, which builds a three-dimensional map of space according to data of the laser scanning system and the fish eye camera. The algorithm is an integral part of the SLAM algorithm using an extended Kalman filter, which is implemented on a mobile robotic platform, modeled in the ROS environment. The results of the researches of this system in the modeling environment of gazebo are also presented.","PeriodicalId":363848,"journal":{"name":"2019 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"85 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":"126957516","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.2019.8814193
A. S. Adzhemov, A. Y. Kudryashova
In the modern world, image transmission, including the transmission of television and video signals, is carried out using a preliminary and restorative correction according to the law, which was caused by the use of imaging devices on cathode-ray tubes. If we take into account the presence of several video transmission channels, for example, three for color television or more for spectral systems, then even for the first case, several color models are used for signal transmission, for example, RGB or YCrCb. At the same time, on the one hand, in the R, G, and B channels, gamma correction is not optimal from the point of minimizing the number of quantization levels when visually monitoring the image, and on the other hand, it is known that these models are not equal-contrast, a change in, for example, a color tone or saturation by a certain amount will be noticeably differently depending on the choice of the initial values of the coordinates of the selected color.
{"title":"Model of Effective Color Image Coding Taking into Account the Peculiarities of Colorimetry System","authors":"A. S. Adzhemov, A. Y. Kudryashova","doi":"10.1109/SYNCHROINFO.2019.8814193","DOIUrl":"https://doi.org/10.1109/SYNCHROINFO.2019.8814193","url":null,"abstract":"In the modern world, image transmission, including the transmission of television and video signals, is carried out using a preliminary and restorative correction according to the law, which was caused by the use of imaging devices on cathode-ray tubes. If we take into account the presence of several video transmission channels, for example, three for color television or more for spectral systems, then even for the first case, several color models are used for signal transmission, for example, RGB or YCrCb. At the same time, on the one hand, in the R, G, and B channels, gamma correction is not optimal from the point of minimizing the number of quantization levels when visually monitoring the image, and on the other hand, it is known that these models are not equal-contrast, a change in, for example, a color tone or saturation by a certain amount will be noticeably differently depending on the choice of the initial values of the coordinates of the selected color.","PeriodicalId":363848,"journal":{"name":"2019 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)","volume":"18 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":"115950931","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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