Achievements of Modern Radioelectronics最新文献

{"title":"Event information delivery probability calculation in monitoring systems based on networks with LoRaWAN technology","authors":"A. V. Borisovskaya","doi":"10.18127/j20700784-202212-11","DOIUrl":"https://doi.org/10.18127/j20700784-202212-11","url":null,"abstract":"","PeriodicalId":151965,"journal":{"name":"Achievements of Modern Radioelectronics","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131993763","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":"Polymodel complex of presenting quality requirements to a complex technical system at various stages of the life cycle","authors":"V. V. Lisitsky, S. Vorona, A. M. Martynov","doi":"10.18127/j20700784-202210-02","DOIUrl":"https://doi.org/10.18127/j20700784-202210-02","url":null,"abstract":"","PeriodicalId":151965,"journal":{"name":"Achievements of Modern Radioelectronics","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114471016","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":"Microwave filters on cavity resonators","authors":"V. Komarov, S. Bushanskiy, A. Churkin","doi":"10.18127/j20700784-202106-05","DOIUrl":"https://doi.org/10.18127/j20700784-202106-05","url":null,"abstract":"Waveguide and cavity microwave filters continue to be the most important components of high-power radio electronic systems. Cavity microwave filters are of great interest as a separate group of devices of this type. The fields of application of such filters are constantly expanding, and the variety of their design is quite large. In addition, the requirements for their electromagnetic characteristics and reliability are currently increasing. In this regard, it becomes necessary to analyze the already created designs of these devices and study the main trends of their improvement. The objective of the present study is to review the known technical solutions of bandpass filters, made on cavity resonators of the microwave range. An overview of the designs of devices for filtering electromagnetic waves on cavity resonators with coaxial and waveguide coupling elements of various frequency ranges is carried out. It is proposed to use the configuration of basic resonators as the main criterion for the classification of these devices. In accordance with this criterion, five groups of filters are considered: on rectangular, cylindrical, spherical, coaxial resonators, as well as on resonators of complex shape. The review makes it possible to analyze the features of the implementation of different technical solutions for bandpass microwave filters of medium and high power levels and to identify the main trends in the development of this area of research.","PeriodicalId":151965,"journal":{"name":"Achievements of Modern Radioelectronics","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122546051","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":"Algorithm for partially decentralized processing of a posteriori information in an integrated detection system","authors":"A. A. Bliznyuk, S. B. Zhironkin, A. Slobodyanyuk","doi":"10.18127/j20700784-202102-05","DOIUrl":"https://doi.org/10.18127/j20700784-202102-05","url":null,"abstract":"The integration of detectors can lead to an improvement in their performance. In this case, heterogeneous (radar, optoelectronic, radiotechnical) detectors can be combined. The task of integrating radar detectors is relevant for multi-positional radar stations. The construction of integrated identification systems can also be viewed as the task of combining detectors of their objects. There are three main options for combining detectors: centralized, partially decentralized, and fully decentralized. Centralized detection implements aggregation at the primary processing level, which provides potential characteristics, but it is difficult to implement such a combination in practice. Partially decentralized detection is implemented more simply, when preliminary detection decisions are made in the integrated detectors, which are then jointly processed and a final decision is formed. In joint processing of preliminary decisions, the probabilities of correct detection and false alarm of complexed detectors are usually used. The article presents an algorithm for partially decentralized combining of detectors using posterior probabilities of correct detection and false alarm. According to the results of computer simulation of the algorithm, characteristics were obtained that indicate an increase in the quality of detection relative to the best of the combined detectors. The use of the usual probabilities of correct detection and false alarm when combining does not guarantee such an increase – for certain characteristics of the detectors being combined, the effect of combining can be negative: the detection quality after combining will be lower relative to the best of the combined detectors.","PeriodicalId":151965,"journal":{"name":"Achievements of Modern Radioelectronics","volume":"295 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121151637","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":"Modern hybrid-integrated autodyne oscillators of microwave and mm-wave ranges and its applications. Part 14. Autodynes with amplitude-frequency modulation","authors":"V. Noskov, E. Bogatyrev, R. G. Galeev, K. Ignatkov, K. Shaidurov","doi":"10.18127/j20700784-202208-02","DOIUrl":"https://doi.org/10.18127/j20700784-202208-02","url":null,"abstract":"","PeriodicalId":151965,"journal":{"name":"Achievements of Modern Radioelectronics","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117125240","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":"Methods and algorithms for classifying air targets by importance based on data from an airborne radar system Part 1. Two-stage ranking of air targets according to the degree of danger during the operation of radar in the multipurpose tracking mode","authors":"A. Bogachev, I. R. Zagrebelnyi, V. I. Merkulov","doi":"10.18127/j20700784-202101-04","DOIUrl":"https://doi.org/10.18127/j20700784-202101-04","url":null,"abstract":"Classification of air targets by rank of importance is the basis for ensuring situational awareness of pilots (crew members) of military aircraft, therefore, the problem of increasing the reliability of target classification is very urgent. The requirement to provide the pilot (crew) with full situational awareness means providing him with complete and reliable information about tactical, electronic, navigation situations and the technical condition of on-board systems. It should be noted that when classifying air targets according to the rank of importance, dangerous, favorable for attack and non-dangerous targets are currently usually distinguished. Specific tasks of classifying air targets by importance rank belong to the class of object recognition tasks. In modern aviation radio-electronic complexes, the classification of air targets according to the rank of importance is usually carried out according to the data of on-board radar systems, as well as electronic intelligence systems and optoelectronic systems. It should be noted that one of the main information modes of functioning of modern and future radar systems is the multipurpose tracking mode, in which an airborne radar can simultaneously track a large number of targets in its area of responsibility. In the conduct of hostilities, ensuring one's own security is a priority task for aircraft of various purposes. In this case, the role of dangerous air targets can be not only targets belonging to the opposing side, but also their own aircraft in dangerous encounters, in which a collision can occur between them. Therefore, the problem of preventing dangerous encounters and preventing aircraft collisions with each other becomes one of the key problems in group operations of military aviation. It should be noted that by now there are various methods of assessing goals according to the degree of their danger, but there is no systematic presentation of them. An attempt is made in the article to give a systematized presentation of new methods for solving this problem, based on a two-stage decision-making on the predicted minimum distance of closest approach and the time to reach it. Based on this approach, the following are considered: the method of subjective reduction of private indicators; procedures for determining the hazard indicators of air targets in the antenna coordinate system; rules for making decisions on the degree of danger of targets, taking into account their possible maneuver; – the composition of information support for solving this problem has been determined.","PeriodicalId":151965,"journal":{"name":"Achievements of Modern Radioelectronics","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117175171","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":"Algorithm for determining the design of an unbalanced wave channel antenna with a given direction of maximum radiation in the vertical plane","authors":"A. Andropov, S. Kuzmin","doi":"10.18127/j20700784-202104-12","DOIUrl":"https://doi.org/10.18127/j20700784-202104-12","url":null,"abstract":"An integral part of the communication system with unmanned aerial vehicles is the airborne antenna-feeder system. As a rule, a circular pattern is required in the horizontal plane. However, since omnidirectional antennas have a small gain, they switch to schemes of several directional switchable antennas. It is proposed to use an unbalanced antenna for such systems. Unbalanced antennas have limited substrate dimensions. The maximum gain is achieved not towards the horizon, but at some elevation angle. Proposes a design definition algorithm an unbalanced antenna wave channel with a given direction of maximum radiation. For example, a similar antenna is constructed using the algorithm. An antenna for operation in the frequency range of 2,3…2,7 GHz is taken as the initial data. The dimensions of the antenna elements are obtained from numerical experiments using an optimization module in CAD. A study of the directivity characteristics of an unbalanced wave channel of an antenna with a limited substrate and the dependence of the elevation angle of the maximum of the directivity pattern is carried out. The minimum size of the substrate at which the gain in the direction to the horizon stops growing is revealed. The range of values of the elevation angle of the maximum of the amplitude radiation pattern in the vertical plane is determined.","PeriodicalId":151965,"journal":{"name":"Achievements of Modern Radioelectronics","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116036263","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":"Estimating the noise immunity of spacecraft on-board repeaters and satellite earth stations under the influence of intentional interference","authors":"D. Pantenkov","doi":"10.18127/j20700784-202107-04","DOIUrl":"https://doi.org/10.18127/j20700784-202107-04","url":null,"abstract":"Civil, special and dual-use satellite communication systems are used everywhere in space, land, aviation and maritime means of transmitting information to remote subscribers. At the same time, during operation of these systems, one of the main issues is ensuring the required level of noise immunity of communication channels when operating in a complex electromagnetic environment, in conditions of both unintentional and intentional interference. This article proposes a technique for estimating the noise immunity of spacecraft on-board repeaters and satellite earth stations under the influence of intentional interference based on the application of the suppression coordinate law, which takes into account the probabilities of suppressing a useful communication signal depending on the coordinates of interference points by frequency, time, radiation power. The results of calculations and graphical dependencies based on results of mathematical simulation of impact efficiency on onboard repeaters of spacecraft and terrestrial stations of satellite communication of noise barrier by frequency of interference in modes of repeater functioning both with direct transfer of signal spectrum by frequency and with its processing on board are presented. At any stage of design of communication systems in the composition of various complexes of aviation, sea, land, space bases, it is possible to obtain estimates of their noise immunity, or vice versa, when designing electronic warfare, to obtain estimates of suppression of satellite communication systems according to the probability criterion.","PeriodicalId":151965,"journal":{"name":"Achievements of Modern Radioelectronics","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126160772","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":"Mathematical model of geolocation of a satellite communication station using one relay satellite","authors":"M. Kulikov, M.P. Sagalaev, A. Titov","doi":"10.18127/j20700784-202104-03","DOIUrl":"https://doi.org/10.18127/j20700784-202104-03","url":null,"abstract":"At present, multi-satellite geolocation systems based on the TDOA are actively used to localization of radio emission sources in satellite communication systems operating via relay satellites without on-board processing. In General, information about the location of the radio emission sources is contained in the difference of the inclined range from the multiple fixed points with known coordinates. Such points of space in the classical geolocation system are two or more relay satellites in geostationary orbit. It is not always possible to have two or more satellites retransmitting the same signal. Therefore, it is necessary to develop a mathematical model for geolocation using a single relay satellite. Single-satellite geolocation is based on the use of Doppler, TDOA, or phase direction finding methods. With this approach, it is desirable that a single satellite has the ability to move in a controlled manner, either in altitude or at different speeds relative to its standing point. Moving the satellite along the equator in position and along the meridian in height allows you to calculate several orthogonal bases of estimates of the inclined range to the radio source. In this case, the determination of coordinates is based on the increment of the distance of the object's signal runs between the end points of each base. This provides the construction of position lines (hyperballs), the intersection of which is the source location. If the movement of the satellite along the equator and the meridian is performed with a change in speed, then geolocation is based on measurements of several orthogonal components of the Doppler frequency shift of the radio source signals. The base will be called two, four or more pairwise taken orbital positions of the satellite at points with fixed coordinates; S x y z1 1 1 1( , , ) S x y z2 2 2 2( , , ); S x y z2 2 2 2( , , ) S x y z3 3 3 3( , , ); etc. in all possible combinations. An arbitrary inclined base formed in the spacecraft orbit has an extension of Бп (x2  x1)2  (y2  y1)2  (z2  z1)2 . Differential range Дд = Дн2 – Дн1. To geolocate the M-object, you must: 1. Measure the difranges between M over two or more different shifted Дн bases at multiple satellite drift positions – Дд1, Дд2, ..., Дд4, etc. 2. Calculate the parameters al, bl, cl of each l-th hyperbolic surface of the section of the conic equations of the geometric location of the points of position M with the measured Дд1, Дд2, ..., Дд4 and the known Дн. Construct a common point of intersection of several such hyperbolic surfaces of the cross-section of the conic equations of the geometric location of the points of the position of the object M(x, y, z). The resulting vector of linear coordinates M(x, y, z) of the object must be converted from geocentric to geographical coordinates of the spherical coordinate system of the object M (longitude, latitude, Position-vector).","PeriodicalId":151965,"journal":{"name":"Achievements of Modern Radioelectronics","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128955430","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":"Algorithm of range migration compensation via the keystone transform without interpolation","authors":"A. Monakov","doi":"10.18127/j20700784-202212-07","DOIUrl":"https://doi.org/10.18127/j20700784-202212-07","url":null,"abstract":"","PeriodicalId":151965,"journal":{"name":"Achievements of Modern Radioelectronics","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121841557","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}