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Issue 4 (210), article 5

DOI:https://doi.org/10.15407/kvt210.04.080

Cybernetics and Computer Engineering, 2022, 4(210)

KUTSIAK O.A., PhD (Engineering),
Senior Researcher of the Bioelectrical Control & Medical Cybernetics Department
https://orcid.org/0000-0003-2277-7411
e-mail: spirotech85@ukr.net

International Research and Training Center for Information Technologies and Systems of the National Academy of Sciences of Ukraine and the Ministry of Education and Science of Ukraine,
40, Akad. Hlushkov av., Kyiv, 03187, Ukraine

MOBILE SYSTEM FOR THE PATIENT’S MOTOR FUNCTIONS STATE DIAGNOSTICS

Introduction. The diagnostics of motor functions state plays an important role both as a result of the central nervous system impairments (stroke etc.) and as a result of injuries, traumas, etc. As mobile devices expand the possibilities of modern medicine, the actual task is the synthesis of an effective mobile system for the motor functions state diagnosing at various stages of rehabilitation.

The purpose of the paper is to develop a mobile system for personalized motor functions diagnostics for their and speech motility rehabilitation, which functional capabilities contribute to the rehabilitation effectiveness increasing and usability both in clinical and home conditions, as well as in the fields conditions.

The results. The recovery of motor and speech functions, in particular for persons after injuries and traumas, as well as usage by the patient at home, put forward requirements for personalization, mobility, ease of perception and usability of information given to the user.

According to the requirements, the interface of mobile system for the motor function diagnostics was developed: set of user tasks was defined, scenario was developed for the patient to test own motor functions within the mobile system. The relation database’s infologic model has been developed for the storage and accumulation of patients’ motor functions data and following analysis by a physician.

The algorithm for personalized motor functions diagnosing has been developed. It is based on expanded range of evidence criteria are not taken into account by known analogues. The algorithm is implemented in the MovementTestStroke 1.2 mobile system with taking into account the interface and relation database. Such a system provides objectification of assessment, reduction of the probability of a physician’s error and urgency in diagnostic and treatment decisions-making, provides necessary and sufficient information to the user in a convenient digital and graphical forms, simplifies for the physician the motor functions state analyzing and the personalized treatment strategy creating.

Conclusions. The mobile system for motor function diagnostics can be used in clinical, home and field conditions, not only to assess the motor functions state affected by central nervous system pathologies, but also by injuries and traumas, etc., which creates the basis for personalized, mobile, urgent diagnostic and treatment decisions-making by the physician.

Keywords: diagnostics, motor functions, quantitative assessment, criteria, algorithm, software system, mobile system, stroke, injuries

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https://doi.org/10.15407/kvt198.04.062

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Received 30.09.2022

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Issue 4 (210), article 4

DOI:https://doi.org/10.15407/kvt210.04.060

Cybernetics and Computer Engineering, 2022, 4(210)

FAINZILBERG L.S., DSc (Engineering), Professor,
1Chief Researcher of the Intelligent Automatic Systems Department,
2Professor of the Department of Biomedical Cybernetics
https://orcid.org/0000-0002-3092-0794
e-mail: fainzilberg@gmail.com

1International Research and Training Center for Information Technologies and Systems of the National Academy of Sciences of Ukraine and the Ministry of Education and Science of Ukraine,
40, Acad. Glushkov av., Kiyv, 03187, Ukraine

2National Technical University of Ukraine “Ihor Sikorsky Kyiv Polytechnic Institute»
37, Peremogy av., Kiyv, 03056, Ukraine

MOBILE INFORMATION TECHNOLOGY FOR ASSESSING THE ADAPTATION CAPABILITIES OF THE HUMAN BODY UNDER CONDITIONS OF INCREASED LOADS

Introduction. An important role in assessing the body’s adaptive reserves under conditions of physical and emotional stress is played by information obtained with the help of special tests. Such tests should be convenient enough to quickly obtain the result, including at home and in the field.

The purpose of the paper is to develop the principles of building mobile IT for the operational assessment of the adaptive capabilities of the human body in the field and at home and the implementation of IT on a smartphone.

Methods. To assess tolerance to physical and emotional stress, a cognitive graphical image is constructed that integrally characterizes the regulatory patterns of changes in the physiological parameters of the heart rate, calculated in three states: at rest, at the height of the load and during restitution.

Results. It is shown that reliable information about the pulse wave (finger photoplethysmogram) during testing can be obtained using the built-in camera of a smartphone without additional technical means based on the developed original computational procedures that provide for the selection of reliable and unreliable cycles. To manage the physical load on the internal processor of the smartphone, a virtual teacher animation procedure is implemented, which demonstrates the correct technique and sets the required pace of the load. The emotional load management module is based on the Stroop effect and boils down to doing mental work under time pressure. The experiments confirmed that the cognitive graphic image makes it possible almost instantly to identify physiological indicators that demonstrate an inadequate response of the body to the load and rest after it.

Conclusions. The developed technology for assessing the adaptive capabilities of the human body under conditions of increased physical and emotional stress provides reliable testing in the field and at home, and the test results can be interpreted by a person without special medical education.

Keywords: information technology on a smartphone, regulatory patterns, body tolerance to physical and emotional stress.

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Received 16.09.2022

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Issue 4 (210), article 3

DOI:https://doi.org/10.15407/kvt210.04.038

Cybernetics and Computer Engineering, 2022, 4(210)

VOLKOV O.Ye.1, PhD (Engineering), Leading Researcher,
Director
https://orcid.org/0000-0002-5418-6723
e-mail: alexvolk@ukr.net

VOLOSHENYUK D.O.1, PhD (Engineering),
Senior Researcher of the Intelligent Control Department
https://orcid.org/0000-0003-3793-7801
e-mail: p-h-o-e-n-i-x@ukr.net

ODARCHENKO R.S.2, DSc (Engineering),
Head of the Telecommunication and Radio-electronic Systems Department
https://orcid.org/0000-0002-7130-1375
e-mail: odarchenko.r.s@ukr.net

BONDAR S.O.1, PhD student,
Researcher of the Intelligent Control Department
https://orcid.org/0000-0003-4140-7985
e-mail: seriybrm@gmail.com

SEMENOH R.V.1, PhD student,
Junior Researcher of the Intelligent Control Department
https://orcid.org/0000-0002-6714-0644
e-mail: ruslansemenog20@icloud.com

SHCHERBINA O.A.2, DSc (Engineering), Associate Professor,
Professor of the Department of Electronics, Robotics, Monitoring and
Internet of Things Technologies
https://orcid.org/0000-0002-6058-2749
e-mail: shcherbyna_ol@nau.edu.ua

1International Research and Training Center for Information Technologies and Systems of the National Academy of Sciences of Ukraine and the Ministry of Education and Science of Ukraine,
40, Akad. Hlushkov av., Kyiv, 03680, Ukraine

2National Aviation University,
1, Lubomyr Husar av., Kyiv, 03058, Ukraine.

ANALYSIS OF MULTIPLE INPUT MULTIPLE OUTPUT SYSTEM DESIGNS FOR BASE STATIONS AND 5G WIRELESS NETWORK MOBILE APPS

Introduction. Because of the fast technological development, cellular connection networks are becoming such type of the network domain that could support several frequency ranges of different cellular generations and it needs to have an optimal antenna design structure to have the most efficient signal receiving. So the multiple input multiple output (MIMO) antennas were chosen as the most appropriate instrument to operate at 5G mobile networks. According to purpose, all 5G cellular connection antenna systems could be relatively divided into two types: base station antenna systems and antennas for mobile apps. In one’s turn, dependently from the frequency range, each of defined types include two subgroups, such as: lower than 6 GHz and higher than 6 GHz. 5G base station MIMO antenna systems for the range that is lower than 6 GHz are often integrating to the 4G antenna systems that simplifies its accomplishment and its placing on the cell tower.

Purpose of the paper is to discover good decoupling and carrying capacity securing in moderate dimensions of the antenna elements during the antenna designing for the 5G mobile apps.  5G system architecture depends on universal antenna design for the millimeter range tasks solving. One of such tasks is large losses overcome on the way of millimeter wave spreading at the free space that weaken signal power significantly.

Results of the research is in definition of the most efficient decoupling and carrying capacity support of the MIMO antenna system. Total dimensions, compact location and optimal work parameters are also reasons for the best MIMO antenna system design definition for its usage for the 5G wireless network mobile applications.

Conclusion. The most optimal structure design for MIMO antenna system could be a real step forward at cellular technologies. Using advantages of all previous network generations, the brand new MIMO wireless antenna system have abilities to work with minimal losses and in the most flexible and frequency-optimal way ever. Development also demonstrates influence of the dimensions on the base station block location and universality of its usage complexly with antennas of, practically, any possible design.

Keywords: cellular network, base stations, multiple input multiple output, 5G.

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20. Y. Gao, R. Ma, Y. Wang, Q. Zhang and C. Parini, “Stacked Patch Antenna With Dual-Polarization and Low Mutual Coupling for Massive MIMO,” in IEEE Transactions on Antennas and Propagation, vol. 64, no. 10, pp. 4544-4549, Oct. 2016,
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21. M.V. Komandla, G. Mishra and S.K. Sharma, “Investigations on Dual Slant Polarized Cavity-Backed Massive MIMO Antenna Panel With Beamforming,” in IEEE Transactions on Antennas and Propagation, vol. 65, no. 12, pp. 6794-6799, Dec. 2017,
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22. A. Alieldin, Y. Huang, M. Stanley, S.D. Joseph and D. Lei, “A 5G MIMO Antenna for Broadcast and Traffic Communication Topologies Based on Pseudo Inverse Synthesis,” in IEEE Access, vol. 6, pp. 65935-65944, 2018,
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24. Y.He, Z. Pan, X. Cheng, Y.He, J. Qiao and M.M. Tentzeris, “A Novel Dual-Band, Dual-Polarized, Miniaturized and Low-Profile Base Station Antenna,” in IEEE Transactions on Antennas and Propagation, vol. 63, no. 12, pp. 5399-5408, Dec. 2015.
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30. Y. Liu, S. Wang, N. Li, J.-B. Wang and J. Zhao, “A Compact Dual-Band Dual-Polarized Antenna With Filtering Structures for Sub-6 GHz Base Station Applications,” in IEEE Antennas and Wireless Propagation Letters, vol. 17, no. 10, pp. 1764-1768, Oct. 2018.
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34. A.I. Sulyman, A. Alwarafy, G.R. MacCartney, T.S. Rappaport and A. Alsanie, “Directional Radio Propagation Path Loss Models for Millimeter-Wave Wireless Networks in the 28-, 60-, and 73-GHz Bands,” in IEEE Transactions on Wireless Communications, vol. 15, no. 10, pp. 6939-6947, Oct. 2016, doi: 10.1109/TWC.2016.2594067.
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41. Z. Chen and Y.P. Zhang, “FR4 PCB grid array antenna for millimeter-wave 5G mobile communications,” 2013 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO), 2013, pp. 1-3.
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52. C.F. Ding, X.Y. Zhang, C. Xue and C. Sim, “Novel Pattern-Diversity-Based Decoupling Method and Its Application to Multielement MIMO Antenna,” in IEEE Transactions on Antennas and Propagation, vol. 66, no. 10, pp. 4976-4985, Oct. 2018.
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53. L. Chang, Y. Yu, K. Wei and H. Wang, “Orthogonally Polarized Dual Antenna Pair With High Isolation and Balanced High Performance for 5G MIMO Smartphone,” in IEEE Transactions on Antennas and Propagation, vol. 68, no. 5, pp. 3487-3495, May 2020.
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54. L. Sun, Y. Li, Z. Zhang and Z. Feng, “Wideband 5G MIMO Antenna With Integrated Orthogonal-Mode Dual-Antenna Pairs for Metal-Rimmed Smartphones,” in IEEE Transactions on Antennas and Propagation, vol. 68, no. 4, pp. 2494-2503, April 2020.
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55. W. Jiang, B. Liu, Y. Cui and W. Hu, “High-Isolation Eight-Element MIMO Array for 5G Smartphone Applications,” in IEEE Access, vol. 7, pp. 34104-34112, 2019.
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57. R. Ullah, S. Ullah, B. Kamal and R. Ullah, “A Four-Port Multiple Input Multiple Output (MIMO) Antenna for Future 5G Smartphone Applications,” 2019 International Conference on Electrical, Communication, and Computer Engineering (ICECCE), 2019, pp. 1-5.
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Received 16.08.2022

admin

Issue 4 (210), article 2

DOI:https://doi.org/10.15407/kvt210.04.026

Cybernetics and Computer Engineering, 2022, 4(210)

E.G. REVUNOVA1, DSc (Engineering),
Leading Researcher, Department of Neural Information Processing Technologies
e-mail: egrevunova@gmail.com

O.V. TYSHCHUK2,
Senior Software Engineer,
e-mail: avtyshcuk@gmail.com

O.O. DESIATERYK3, PhD (Phys&Math),
Assistant Professor, Faculty of Mechanics and Mathematics,
e-mail: sasha.desyaterik@gmail.com

1International Research and Training Center for Information Technologies and Systems of the National Academy of Sciences of Ukraine and the Ministry of Education and Science of Ukraine, 40, Acad. Glushkov av., Kyiv, 03187, Ukraine

2Roku Inc., Kyiv, Ukraine,

3Taras Shevchenko National University of Kyiv, 4e, Ave Glushkov, Kyiv, 03127, Ukraine

THE TECHNOLOGY OF THE STABLE SOLUTION FOR DISCRETE ILL-POSED PROBLEMS BY MODIFIED RANDOM PROJECTION METHOD

Introduction. Ill-posed problems solution is actual for many areas of science and technology. For example, discrete ill-posed problems (DIP) appears after discretization of the integral equations in the spectrometry, gravimetry, magnitometry, electrical prospecting and others.

In the case of linear DIP the matrix, which model some measuring system, makes a linear transformation of input vector to the output vector. Usually DIP output vector contains noise and singular values series of the matrix smoothly decrease to zero. In this case, the solution (input vector estimation) using the inversion of the transformation matrix is unstable and inaccurate. To overcome instability and increase accuracy we use regularization methods.

We develop an approach which uses regularizing properties of random projection to obtain a stable solution of DIP. However, the development of effective sustainable methods for solving DIP continues to be a problem of current interest.

The purpose of the paper is to increase the accuracy of DIP solution by the random projection method.

Results. In this paper we developed the method of stable solution of DIP by the modified method of random projection. For this modification the regularization by random projection is complemented by the regularization in the ridge regression style.

For the our method we obtained expressions which connect in the direct way the solution error components with the matrix specter and the regularization parameter. For the developed method the experimental research of the accuracy is conducted on the test problems.

Conclusions. The modified method of random projecting is characterized by stability and increased accuracy of the solution. This achieved by simultaneous ridge regression style regularization and random projecting. The representation of the solution error in the form where error components are related to the matrix specter and regularization parameter is important for further study of the error.

Keywords: random projection method, simultaneous ridge regression, regularization, stable solution, discrete ill-posed problems.

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REFERENCES

1 Revunova E.G., Rachkovskij D.A. Using randomized algorithms for solving discrete ill-posed problems. Intern. Journal Information Theories and Applications. 2009. Vol. 2, N. 16. P.176-192.

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6 Wei Y., Xie P., Zhang L. Tikhonov regularization and randomized GSVD. SIAM J. Matrix Anal. Appl. 2016. Vol. 37, N 2. P. 649-675.
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https://doi.org/10.1007/s10559-012-9443-6

11 Revunova EG, Rachkovskij DA, Stable transformation of a linear system output to the output of system with a given basis by random projections, The 5th Int. Workshop on Inductive Modelling (IWIM’2012), Kyiv, 2012, p. 37-41 (in Russian).

12 Revunova EG, Randomization approach to the reconstruction of signals resulted from indirect measurements, Proc. 4th International Conference on Inductive Modelling (ICIM’2013), Kyiv, 2013, p. 203-208 (in Russian).

13 Revunova E.G., Tyshchuk A.V. A model selection criterion for solution of discrete ill-posed problems based on the singular value decomposition, The 7th International Workshop on Inductive Modelling (IWIM’2015), Kyiv-Zhukyn, 2015, p.43-47(in Russian).

14 Revunova E.G. Analytical study of the error components for the solution of discrete ill-posed problems using random projections. Cybernetics and Systems Analysis. 2015. Vol. 51, N. 6. P. 978-991.
https://doi.org/10.1007/s10559-015-9791-0

15 Revunova E.G. Model selection criteria for a linear model to solve discrete ill-posed problems on the basis of singular decomposition and random projection. Cybernetics and Systems Analysis. 2016. Vol. 52, N.4. P.647-664.
https://doi.org/10.1007/s10559-016-9868-4

16 Revunova E.G. Averaging over matrices in solving discrete ill-posed problems on the basis of random projection. Proc. CSIT’17. 2017. Vol. 1. P. 473 – 478.
https://doi.org/10.1109/STC-CSIT.2017.8098831

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19 Revunova E.G., Tyshcuk O.V., Desiateryk О.О. On the generalization of the random projection method for problems of the recovery of object signal described by models of convolution type. Control Systems and Computers. 2021. N 5-6. P. 25-34.
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20 Tyshchuk O.V., Desiateryk O.O., Volkov O.E., Revunova E.G., Rachkovskij D.A., A linear system output transformation for sparse approximation. Cybernetics and Systems Analysis. 2022. Vol. 58, N. 5. P. 840-850.
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Received 04.10.2022

admin

Issue 4 (210), article 1

DOI:https://doi.org/10.15407/kvt210.04.003

Cybernetics and Computer Engineering, 2022, 4(210)

SUROVTSEV I.V., DSc (Engineering), Senior Researcher,
Head of the Digital Ecological Monitoring Systems Department
https://orcid.org/0000-0003-1133-6207
e-mail: igorsur52@gmail.com

KOMAR M.M., PhD (Engineering),
Deputy Director for Scientific and Organizational Work,
https://orcid.org/0000-0001-9194-2850
e-mail: nickkomar08@gmail.com

BOGACHUK Yu.P., PhD (Engineering),
Senior Researcher, Intelligent Control Department
https://orcid.org/0000-0002-3663-350X
e-mail: dep185@irtc.org.ua

SIERIEBRIAKOV A.K., PhD Student,
Researcher of Intelligent Control Department
https://orcid.org/0000-0003-3189-7968
e-mail: sier.artem1002@outlook.com

BABAK O.V., PhD (Engineering),
Senior Researcher of the Digital Ecological Monitoring Systems Department,
https://orcid.org/0000-0002-7451-3314
e-mail: dep115@irtc.org.ua

International Research and Training Center for Information Technologies and Systems of the National Academy of Sciences of Ukraine and the Ministry of Education and Science of Ukraine.
40, Acad. Glushkov av., Kyiv, 03187, Ukraine.

RECOGNITION OF THE TYPE OF MARINE SHIP BASED ON COMPARISON WITH NORMALIZED REFERENCE PARAMETERS OF RADIOLOCATION SIGNALS

Introduction. The problem of marine ship types recognition remains relevant because it primarily focuses on the safety of sea and inland navigation. The basis of the identification of the type of marine ship is the use of training samples – a set of reference normalized parameters of mathematical models of radar portraits of reflected signals, recorded in the database, for which the type of ship is reliably known.

The purpose of the paper is to develop a method for recognizing the type of surface marine ship by comparing the parameters of the radar portrait of the reflected signal of the radar object with the reference parameters of the signals of mathematical models of known types of marine ships.

Methods. The recognition method is based on comparison of the normalized parameters of the radar signal of the object with the normalized parameters of the mathematical models of the database references through a full search, after which a decision is made in favor of the type of marine ship for which the overall measure of inconsistency or the identification criterion is minimal. The identification criterion is the sum of dimensionless features, which are a measure of similarity in the chosen metric of the parameters regarding reference object.

Results. Testing of the developed recognition method on examination samples made it possible to identify the type and real orientation angle of the ship at the level of 83%, as well as to identify the types and recognize the orientation angles of marine ships at the level of 96%.

Conclusions. The new method of recognition of the type of marine ship is characterized by the use of insignificant computing power, high speed of analysis, compactness of the reference database, high reliability and accuracy of recognition. Determination of auxiliary alternative values of the identification of the type and orientation angle of the ship helps in the dynamic mode of observation to statistically specify the characteristics of the recognition of the ship. The developed method of recognizing the type of ship can be used in the military sphere, its use in radar systems will improve the safety of sea and inland navigation.

Keywords: recognition method, identification, type of marine ship, radar portrait of reflected signal.

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Received 25.08.2022