Pub Date : 2020-11-18DOI: 10.21778/2413-9599-2020-30-4-79-86
S. Kulikov, S. Y. Ashchunin, V. O. Korolev, V. Aldokhina
Formulation of the problem. When scanning in space by a phased array antenna (PAA), which consists of a large number of emitters, there is an interaction between them in the form of impedance. It affects the matching quality of the receiving-transmitting module of the PAA with the emitter and leads to significant losses of power and detection range of the radar station.Objective. Improving the quality of the PAA emitters matching when changing the position of the antenna directional pattern beam in space due to the use of adjustable super high frequency (SHF) matching circuits on the switching elements.Results. The article substantiates an increase in the functional capabilities of the development of adjustable matching circuits of super-high frequencies due to the use of switching elements in the device, which allow reducing the influence of factors caused by a change in the input impedance of the radiating element in phased antenna arrays. Based on the presented mathematical model, the change in the input resistance of the radiating elements is taken into account, which arises due to their mutual influence, and makes it possible to research the potential characteristics of controlled circuits when their structure and parameters change. The method of choosing the structure and parameters allows the device to be adjusted to the change in the input complex load resistance and ensure the minimum voltage standing-wave ratio.Practical significance. The proposed device allows for the calculation of implemented adjustable matching circuits, which, with existing materials and manufacturing technologies, provide a decrease in losses and an increase in range. An experimental model of microstrip design was developed based on the proposed device and a field experiment was carried out, which confirmed the correctness of the approach to the developed device.
{"title":"Adjustable circuits on semiconductor switching elements as a matching device in radar stations for outer space monitoring","authors":"S. Kulikov, S. Y. Ashchunin, V. O. Korolev, V. Aldokhina","doi":"10.21778/2413-9599-2020-30-4-79-86","DOIUrl":"https://doi.org/10.21778/2413-9599-2020-30-4-79-86","url":null,"abstract":"Formulation of the problem. When scanning in space by a phased array antenna (PAA), which consists of a large number of emitters, there is an interaction between them in the form of impedance. It affects the matching quality of the receiving-transmitting module of the PAA with the emitter and leads to significant losses of power and detection range of the radar station.Objective. Improving the quality of the PAA emitters matching when changing the position of the antenna directional pattern beam in space due to the use of adjustable super high frequency (SHF) matching circuits on the switching elements.Results. The article substantiates an increase in the functional capabilities of the development of adjustable matching circuits of super-high frequencies due to the use of switching elements in the device, which allow reducing the influence of factors caused by a change in the input impedance of the radiating element in phased antenna arrays. Based on the presented mathematical model, the change in the input resistance of the radiating elements is taken into account, which arises due to their mutual influence, and makes it possible to research the potential characteristics of controlled circuits when their structure and parameters change. The method of choosing the structure and parameters allows the device to be adjusted to the change in the input complex load resistance and ensure the minimum voltage standing-wave ratio.Practical significance. The proposed device allows for the calculation of implemented adjustable matching circuits, which, with existing materials and manufacturing technologies, provide a decrease in losses and an increase in range. An experimental model of microstrip design was developed based on the proposed device and a field experiment was carried out, which confirmed the correctness of the approach to the developed device.","PeriodicalId":159068,"journal":{"name":"Radio industry (Russia)","volume":"257 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115842083","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 : 2020-11-18DOI: 10.21778/2413-9599-2020-30-4-47-61
K. Dobrova, E. Dobrova
Problem statement. The main problem is that the existing methods and mechanisms of strategic management of the MIC are not in line with to the new harsh external conditions due to sanctions, with the acceleration of scientific and technological progress, with the need of MIC transition to innovative development, with the development of military-civil integration processes.Objective. Determining the principal ways to develop the system of strategic management of the MIC of the Russian Federation.Results. Typical approaches to the formulation and solution of the development problems of the strategic management system of the defense industry are described – conservative and pivotal, and the need to implement a pivotal approach is shown. The main ways of creating a promising defense industry management system that meets modern requirements are shown.Practical implications. The need to develop and implement at the state level a comprehensive large innovative and institutional project for reforming the management system for the MIC is determined.
{"title":"Development direction of the strategic management system of the Russian military-industrial complex","authors":"K. Dobrova, E. Dobrova","doi":"10.21778/2413-9599-2020-30-4-47-61","DOIUrl":"https://doi.org/10.21778/2413-9599-2020-30-4-47-61","url":null,"abstract":"Problem statement. The main problem is that the existing methods and mechanisms of strategic management of the MIC are not in line with to the new harsh external conditions due to sanctions, with the acceleration of scientific and technological progress, with the need of MIC transition to innovative development, with the development of military-civil integration processes.Objective. Determining the principal ways to develop the system of strategic management of the MIC of the Russian Federation.Results. Typical approaches to the formulation and solution of the development problems of the strategic management system of the defense industry are described – conservative and pivotal, and the need to implement a pivotal approach is shown. The main ways of creating a promising defense industry management system that meets modern requirements are shown.Practical implications. The need to develop and implement at the state level a comprehensive large innovative and institutional project for reforming the management system for the MIC is determined.","PeriodicalId":159068,"journal":{"name":"Radio industry (Russia)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116186532","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 : 2020-11-17DOI: 10.21778/2413-9599-2020-30-4-14-22
A. Bulkhin, V. Klyuchnikov, V. Bannov, V. Popov
Formulation of the problem. At present, symmetric LAN cables are widely used in structured cabling systems (SCS) and fixed broadband access (BBA) networks in the world and in Russia. Practical experience of using LAN cables on real broadband access networks shows that high-quality transmission can only be achieved using high-quality highly uniform cables.Objective. Study of the dependence of the quality of LAN-cables on technological equipment and the quality of materials, which provide increased cable uniformity.Results. Based on the experimental studies carried out with the use of a modern measuring system, the main electrical characteristics of the transmission and the mutual influence of the most popular four-pair LAN-cable of the 5e category of the U/UTP4×2×0.52 type in the frequency range up to 100 MHz are determined. It is shown that to ensure high and stable transmission characteristics and mutual influence, modern technological equipment must be equipped with cable quality parameters automatic control systems and it is necessary to choose reliable suppliers when using domestic production materials.Practical significance. For the effective practical use of LAN cables on fixed broadband access networks and in SCS, it is very important to have high stability of electrical characteristics and their compliance with rather high established standards. This is possible only by ensuring high geometric and structural homogeneity of the structural elements of LAN cables.
{"title":"Research of electrical characteristics of increased uniformity LAN-cables","authors":"A. Bulkhin, V. Klyuchnikov, V. Bannov, V. Popov","doi":"10.21778/2413-9599-2020-30-4-14-22","DOIUrl":"https://doi.org/10.21778/2413-9599-2020-30-4-14-22","url":null,"abstract":"Formulation of the problem. At present, symmetric LAN cables are widely used in structured cabling systems (SCS) and fixed broadband access (BBA) networks in the world and in Russia. Practical experience of using LAN cables on real broadband access networks shows that high-quality transmission can only be achieved using high-quality highly uniform cables.Objective. Study of the dependence of the quality of LAN-cables on technological equipment and the quality of materials, which provide increased cable uniformity.Results. Based on the experimental studies carried out with the use of a modern measuring system, the main electrical characteristics of the transmission and the mutual influence of the most popular four-pair LAN-cable of the 5e category of the U/UTP4×2×0.52 type in the frequency range up to 100 MHz are determined. It is shown that to ensure high and stable transmission characteristics and mutual influence, modern technological equipment must be equipped with cable quality parameters automatic control systems and it is necessary to choose reliable suppliers when using domestic production materials.Practical significance. For the effective practical use of LAN cables on fixed broadband access networks and in SCS, it is very important to have high stability of electrical characteristics and their compliance with rather high established standards. This is possible only by ensuring high geometric and structural homogeneity of the structural elements of LAN cables.","PeriodicalId":159068,"journal":{"name":"Radio industry (Russia)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132281991","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 : 2020-09-07DOI: 10.21778/2413-9599-2020-30-3-75-85
Александр Александрович Макаренко, Л. А. Винокуров
The algorithms of digital image processing in the unmanned aerial vehicle (UAV) visual navigation system are stated and the program realization of the method is presented in the article. Assessment of a range of spatial frequencies of the image is carried out using the stated algorithms. The look and structure of a two-dimensional amplitude spatial spectrum of the image allow allocating existence of vertical and horizontal borders and lines on the image and giving a general idea about their spatial orientation. The spectral submission of the compared images is also used for the acceleration of correlation function calculations. Using the results of digital processing of an amplitude two-dimensional spatial range of the image observed by the onboard TV camera the data allowing to specify the spatial UAV coordinates and to estimate a condition and position of the airfield are formed. The method is based on the numerical analysis of a two-dimensional amplitude spectrum of the image. Results of operation that confirm efficiency of the stated algorithms are presented.
{"title":"Digital image processing algorithms for visual navigation of an unmanned aircraft","authors":"Александр Александрович Макаренко, Л. А. Винокуров","doi":"10.21778/2413-9599-2020-30-3-75-85","DOIUrl":"https://doi.org/10.21778/2413-9599-2020-30-3-75-85","url":null,"abstract":"The algorithms of digital image processing in the unmanned aerial vehicle (UAV) visual navigation system are stated and the program realization of the method is presented in the article. Assessment of a range of spatial frequencies of the image is carried out using the stated algorithms. The look and structure of a two-dimensional amplitude spatial spectrum of the image allow allocating existence of vertical and horizontal borders and lines on the image and giving a general idea about their spatial orientation. The spectral submission of the compared images is also used for the acceleration of correlation function calculations. Using the results of digital processing of an amplitude two-dimensional spatial range of the image observed by the onboard TV camera the data allowing to specify the spatial UAV coordinates and to estimate a condition and position of the airfield are formed. The method is based on the numerical analysis of a two-dimensional amplitude spectrum of the image. Results of operation that confirm efficiency of the stated algorithms are presented.","PeriodicalId":159068,"journal":{"name":"Radio industry (Russia)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121064638","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 : 2020-06-06DOI: 10.21778/2413-9599-2020-30-2-7
Artiсle Editorial
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{"title":"Technology that ensures survival","authors":"Artiсle Editorial","doi":"10.21778/2413-9599-2020-30-2-7","DOIUrl":"https://doi.org/10.21778/2413-9599-2020-30-2-7","url":null,"abstract":"<jats:p>.</jats:p>","PeriodicalId":159068,"journal":{"name":"Radio industry (Russia)","volume":"27 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131383550","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 : 2020-04-14DOI: 10.21778/2413-9599-2020-30-1-16-23
Sh. M. Sazho, V. Vorobushkov, A. S. Gladkih, S. V. Senchenkov
The article discusses the design features of cooling systems for compact Eurocard format modules based on the Elbrus microprocessor. The issue of ensuring the necessary thermal regime of the processor module in the space shortage conditions in order to accommodate the cooling system has been solved. The estimated calculation showed the underperformance of the passive cooling of the Elbrus-4S microprocessor with a heat output of 60 W. In this regard, a 3D model of an active cooling system with 5.5×10.3×4.6 cm dimensions was developed. Thermal calculations were performed using the SolidWorks Flow Simulation program in order to optimize the radiator geometry and fan speed. It was assumed that an optimized cooling system will ensure that the chip temperature of the Elbrus-4S processor is no more than +87 °C (at an ambient temperature of +55 °C). Based on the results of the study, three prototypes were produced for testing. Further tests conducted on prototypes showed the efficiency of the cooling system and the high accuracy of the simulation results. During tests in a climatic chamber at a temperature of +55 °C, the temperature on the microprocessor chip did not exceed +84 °C (a difference of 3 °C compared to the estimated one).
{"title":"Development of a cooling system for 6U module based on Elbrus microprocessor","authors":"Sh. M. Sazho, V. Vorobushkov, A. S. Gladkih, S. V. Senchenkov","doi":"10.21778/2413-9599-2020-30-1-16-23","DOIUrl":"https://doi.org/10.21778/2413-9599-2020-30-1-16-23","url":null,"abstract":"The article discusses the design features of cooling systems for compact Eurocard format modules based on the Elbrus microprocessor. The issue of ensuring the necessary thermal regime of the processor module in the space shortage conditions in order to accommodate the cooling system has been solved. The estimated calculation showed the underperformance of the passive cooling of the Elbrus-4S microprocessor with a heat output of 60 W. In this regard, a 3D model of an active cooling system with 5.5×10.3×4.6 cm dimensions was developed. Thermal calculations were performed using the SolidWorks Flow Simulation program in order to optimize the radiator geometry and fan speed. It was assumed that an optimized cooling system will ensure that the chip temperature of the Elbrus-4S processor is no more than +87 °C (at an ambient temperature of +55 °C). Based on the results of the study, three prototypes were produced for testing. Further tests conducted on prototypes showed the efficiency of the cooling system and the high accuracy of the simulation results. During tests in a climatic chamber at a temperature of +55 °C, the temperature on the microprocessor chip did not exceed +84 °C (a difference of 3 °C compared to the estimated one).","PeriodicalId":159068,"journal":{"name":"Radio industry (Russia)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122627189","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 : 2020-04-01DOI: 10.21778/2413-9599-2020-30-1-30-36
I. E. Bilyaletdinov, L. S. Timin
Solving the issue of compatibility for the new domestic developments with continuously implemented and used in global microelectronics industry cutting-edge standards requires substantial work on analysis and optimization of the implementation environment. The results of the new Elbrus 8SV microprocessor DDR4 random access memory channel study are provided in this article. The much lower than estimated channel data transfer speed has become the main issue. In order to overcome it the channel functioning study method has been developed and implemented. It is based on forming the analogs of eye diagrams, which allow estimating the area of operability and using the optimal settings. Studies held using this method allowed establishing the cause for unsatisfactory performance of the channel and objectively assessing design decisions made during development. After taking these results into account and applying changes to the chip and the circuit board of the microprocessor case, an improved version of the microprocessor was released. It became possible to achieve the calculated data transfer speed via the memory channel.
{"title":"Implementation problems of high-speed DDR4 channels in a new generation Russian multi-core microprocessor","authors":"I. E. Bilyaletdinov, L. S. Timin","doi":"10.21778/2413-9599-2020-30-1-30-36","DOIUrl":"https://doi.org/10.21778/2413-9599-2020-30-1-30-36","url":null,"abstract":"Solving the issue of compatibility for the new domestic developments with continuously implemented and used in global microelectronics industry cutting-edge standards requires substantial work on analysis and optimization of the implementation environment. The results of the new Elbrus 8SV microprocessor DDR4 random access memory channel study are provided in this article. The much lower than estimated channel data transfer speed has become the main issue. In order to overcome it the channel functioning study method has been developed and implemented. It is based on forming the analogs of eye diagrams, which allow estimating the area of operability and using the optimal settings. Studies held using this method allowed establishing the cause for unsatisfactory performance of the channel and objectively assessing design decisions made during development. After taking these results into account and applying changes to the chip and the circuit board of the microprocessor case, an improved version of the microprocessor was released. It became possible to achieve the calculated data transfer speed via the memory channel.","PeriodicalId":159068,"journal":{"name":"Radio industry (Russia)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129199090","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 : 2020-03-01DOI: 10.21778/2413-9599-2020-30-1-8-15
V. V. Podoltsev
Simulation modeling of the processing method for pseudo-random sequence (PRS) short segments based on the majority tests gives the probability characteristics that are different from the results of a calculation using the Gaussian approximation. The simulation modeling shows that the probability of bit error decoding is changed discretely with the explicit minima and maxima for the length of the processed segment of the PRS. This is due to the fact that the decoder always uses a fixed test sequence, which is determined by the initial phase of the analyzer. Thus, the distribution of these checks determines the dependence of the bit error probability. On this basis, the paper conducts a theoretical study of the probability characteristics synchronization method based on the majority tests, taking into account the specifics of the PRS analyzer. The article formulates and solves the task of analyzing probabilistic characteristics of the majority method of processing short segments of the PRS, which required finding the probability of bit error of decoding. The analytical relations for the probability of bit error of decoding are obtained. The calculations and systematic analysis of the results are performed. It is shown that: with the increase in the length of the processed segment or the length of the valid section N the probability of error can be greater than the probability of destructive errors; the method based on the majority tests with a high probability of destructive errors has a significant advantage in the average code search time over the Ward’s method. Based on the obtained results a modification of the method that will provide the optimal choice of the length of the processed segment of PRS N will be offered in further studies.
{"title":"Estimation of the probabilistic characteristics of the majority method for processing short segments of a pseudo-random sequence","authors":"V. V. Podoltsev","doi":"10.21778/2413-9599-2020-30-1-8-15","DOIUrl":"https://doi.org/10.21778/2413-9599-2020-30-1-8-15","url":null,"abstract":"Simulation modeling of the processing method for pseudo-random sequence (PRS) short segments based on the majority tests gives the probability characteristics that are different from the results of a calculation using the Gaussian approximation. The simulation modeling shows that the probability of bit error decoding is changed discretely with the explicit minima and maxima for the length of the processed segment of the PRS. This is due to the fact that the decoder always uses a fixed test sequence, which is determined by the initial phase of the analyzer. Thus, the distribution of these checks determines the dependence of the bit error probability. On this basis, the paper conducts a theoretical study of the probability characteristics synchronization method based on the majority tests, taking into account the specifics of the PRS analyzer. The article formulates and solves the task of analyzing probabilistic characteristics of the majority method of processing short segments of the PRS, which required finding the probability of bit error of decoding. The analytical relations for the probability of bit error of decoding are obtained. The calculations and systematic analysis of the results are performed. It is shown that: with the increase in the length of the processed segment or the length of the valid section N the probability of error can be greater than the probability of destructive errors; the method based on the majority tests with a high probability of destructive errors has a significant advantage in the average code search time over the Ward’s method. Based on the obtained results a modification of the method that will provide the optimal choice of the length of the processed segment of PRS N will be offered in further studies.","PeriodicalId":159068,"journal":{"name":"Radio industry (Russia)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134428382","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 : 2019-11-22DOI: 10.21778/2413-9599-2019-29-4-63-72
Т. А. Блатова, В. В. Макаров, Н. С. Шувал-Сергеева
The main research subject is an assessment of a current state of the economy and the population well-being using conventional economic indicators. The article presents main trends that are available when people apply information and communication technology to business models and products that transform the economy and social and economic interaction. The analysis completed has showen that as an indicator in terms of digital economy the gross domestic product has no longer adequately presented an increase in a number and variety of services and complexity of the solutions developed. Authors propose new approaches to valuating a digital product based on measurements of the consumer surplus. Authors have shown that to solve problems of measuring the digital economy, we need reliable statistics for activity in the digital economy, so that the ongoing national economic policy does not have negative consequences for the country. There is the conclusion that in the near future, due to the lack of alternatives, the gross domestic product as an indicator will still be in use for measurements of the population well-being. Therefore, statistics quality, techniques for such data analysis, and efficient managerial decision-making based on them have been getting the most relevant.
{"title":"Quantitative and qualitative aspects of measuring the digital economy","authors":"Т. А. Блатова, В. В. Макаров, Н. С. Шувал-Сергеева","doi":"10.21778/2413-9599-2019-29-4-63-72","DOIUrl":"https://doi.org/10.21778/2413-9599-2019-29-4-63-72","url":null,"abstract":"The main research subject is an assessment of a current state of the economy and the population well-being using conventional economic indicators. The article presents main trends that are available when people apply information and communication technology to business models and products that transform the economy and social and economic interaction. The analysis completed has showen that as an indicator in terms of digital economy the gross domestic product has no longer adequately presented an increase in a number and variety of services and complexity of the solutions developed. Authors propose new approaches to valuating a digital product based on measurements of the consumer surplus. Authors have shown that to solve problems of measuring the digital economy, we need reliable statistics for activity in the digital economy, so that the ongoing national economic policy does not have negative consequences for the country. There is the conclusion that in the near future, due to the lack of alternatives, the gross domestic product as an indicator will still be in use for measurements of the population well-being. Therefore, statistics quality, techniques for such data analysis, and efficient managerial decision-making based on them have been getting the most relevant.","PeriodicalId":159068,"journal":{"name":"Radio industry (Russia)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122847396","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 : 2019-11-22DOI: 10.21778/2413-9599-2019-29-4-44-53
I. Korobkov
The article presents a new method for scheduling channel resources in SpaceWire onboard networks with support for TDMA technology. The network features based on the SpaceWire network standard and the STP-ISS transport protocol, which provides TDMA technology in the form of the «Scheduling» mechanism, were considered. This mechanism is used in networks with the goal of providing determinism, resolving conflicts and blocks when two or more devices are simultaneously trying to transmit data, occupying a limited channel resource. A comparative analysis of existing methods and algorithms for scheduling channel resources to design a schedule table was conducted. A new method of scheduling channel resources in SpaceWire onboard networks was presented and substantiated. A performance evaluation was carried out using the parameters significant for the space industry. It demonstrates the effectiveness of the developed method.
{"title":"Method of scheduling channel resources for onboard SpaceWire networks with TDMA","authors":"I. Korobkov","doi":"10.21778/2413-9599-2019-29-4-44-53","DOIUrl":"https://doi.org/10.21778/2413-9599-2019-29-4-44-53","url":null,"abstract":"The article presents a new method for scheduling channel resources in SpaceWire onboard networks with support for TDMA technology. The network features based on the SpaceWire network standard and the STP-ISS transport protocol, which provides TDMA technology in the form of the «Scheduling» mechanism, were considered. This mechanism is used in networks with the goal of providing determinism, resolving conflicts and blocks when two or more devices are simultaneously trying to transmit data, occupying a limited channel resource. A comparative analysis of existing methods and algorithms for scheduling channel resources to design a schedule table was conducted. A new method of scheduling channel resources in SpaceWire onboard networks was presented and substantiated. A performance evaluation was carried out using the parameters significant for the space industry. It demonstrates the effectiveness of the developed method.","PeriodicalId":159068,"journal":{"name":"Radio industry (Russia)","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127689481","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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