Vadym Slyusar (born 15 October 1964, vil. Kolotii,

Reshetylivka Raion Reshetylivka Raion ( uk, Решетилівський район) was a raion (district) in Poltava Oblast of central Ukraine of Poltava. The raion's administrative center was the urban-type settlement of Reshetylivka. The raion was abolished and ...

Poltava Poltava (, ; uk, Полтава ) is a city located on the Vorskla River in central Ukraine. It is the capital city of the Poltava Oblast (province) and of the surrounding Poltava Raion (district) of the oblast. Poltava is administratively ...

region,

Ukraine Ukraine ( uk, Україна, Ukraïna, ) is a country in Eastern Europe. It is the second-largest European country after Russia, which it borders to the east and northeast. Ukraine covers approximately . Prior to the ongoing Russian inv ...

) – Soviet and Ukrainian scientist,

Professor Professor (commonly abbreviated as Prof.) is an Academy, academic rank at university, universities and other post-secondary education and research institutions in most countries. Literally, ''professor'' derives from Latin as a "person who pr ...

, Doctor of Technical Sciences, Honored Scientist and Technician of Ukraine, founder of

tensor In mathematics, a tensor is an algebraic object that describes a multilinear relationship between sets of algebraic objects related to a vector space. Tensors may map between different objects such as vectors, scalars, and even other tenso ...

-matrix theory of

digital antenna array Digital antenna array (DAA) is a smart antenna with multi channels digital beamforming, usually by using fast Fourier transform (FFT). The development and practical realization of digital antenna arrays theory started in 1962 under the guidance ...

s (DAAs), N-OFDM and other theories in fields of

radar Radar is a detection system that uses radio waves to determine the distance (''ranging''), angle, and radial velocity of objects relative to the site. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, w ...

systems,

smart antenna Smart antennas (also known as adaptive array antennas, digital antenna arrays, multiple antennas and, recently, MIMO) are antenna arrays with smart signal processing algorithms used to identify spatial signal signatures such as the direction of a ...

s for

wireless communication Wireless communication (or just wireless, when the context allows) is the transfer of information between two or more points without the use of an electrical conductor, optical fiber or other continuous guided medium for the transfer. The most ...

s and

digital beamforming Beamforming or spatial filtering is a signal processing technique used in sensor arrays for directional signal transmission or reception. This is achieved by combining elements in an antenna array in such a way that signals at particular angles ex ...

Scientific results

N-OFDM theory

In 1992 Vadym Slyusar patented the 1st optimal

demodulation Demodulation is extracting the original information-bearing signal from a carrier wave. A demodulator is an electronic circuit (or computer program in a software-defined radio) that is used to recover the information content from the modulated ...

method for N-OFDM signals after

Fast Fourier transform A fast Fourier transform (FFT) is an algorithm that computes the discrete Fourier transform (DFT) of a sequence, or its inverse (IDFT). Fourier analysis converts a signal from its original domain (often time or space) to a representation in th ...

(FFT).RU2054684 (C1) G01R 23/16. Amplitude-frequency response measurement technique// Slyusar V. – Appl. Number SU 19925055759, Priority Data: 19920722. – Official Publication Data: 1996-02-2

/ref> From this patent was started the history of N-OFDM signals theory. In this regard, W. Kozek and A. F. Molisch wrote in 1998 about N-OFDM signals with the sub-carrier spacing

\alpha < 1

, that "''it is not possible to recover the information from the received signal, even in the case of an ideal channel.''" But in 2001 Vadym Slyusar proposed such N-OFDM, Non-orthogonal frequency digital modulation (N-OFDM) as an alternative of

OFDM In telecommunications, orthogonal frequency-division multiplexing (OFDM) is a type of digital transmission and a method of encoding digital data on multiple carrier frequencies. OFDM has developed into a popular scheme for wideband digital commun ...

for communications systems. The next publication of V. Slysuar about this method has priority in July 2002Slyusar, V. I. Smolyar, V. G. Multifrequency operation of communication channels based on super-Rayleigh resolution of signals// Radio electronics and communications systems c/c of Izvestiia- Vysshie Uchebnye Zavedeniia. Radioelektronika. – 2003, volume 46; part 7, pages 22–27. – Allerton Press Inc. (US

/ref> before the conference paper of I. Darwazeh and M.R.D. Rodrigues (September, 2003)M. R. D. Rodrigues and I. Darwazeh. A Spectrally Efficient Frequency Division Multiplexing Based Communications System.// InOWo'03, 8th International OFDM-Workshop, Proceedings, Hamburg, DE, September 24–25, 2003. - https://www.researchgate.net/publication/309373002 regarding N-OFDM#Spectrally efficient FDM (SEFDM), SEFDM. The description of the method of optimal processing for N-OFDM signals without

FFT A fast Fourier transform (FFT) is an algorithm that computes the discrete Fourier transform (DFT) of a sequence, or its inverse (IDFT). Fourier analysis converts a signal from its original domain (often time or space) to a representation in the ...

ADC ADC may refer to: Science and medicine * ADC (gene), a human gene * AIDS dementia complex, neurological disorder associated with HIV and AIDS * Allyl diglycol carbonate or CR-39, a polymer * Antibody-drug conjugate, a type of anticancer treatm ...

samples was transferred to publication by V. Slyusar in October 2003.Slyusar, V. I. Smolyar, V. G. The description of nonorthogonal frequency-discrete modulation of signals for narrow-band communication channels// Radioelectronics and communications systems c/c of Izvestiia Vysshie Uchebnye Zavedeniia. Radioelektronika. – 2004, volume 47; part 4, pages 40–44. – Allerton Press Inc. (US

/ref> The theory N-OFDM of V. Slyusar inspired numerous investigations in this area of other scientists.

Tensor-matrix theory of
digital antenna array Digital antenna array (DAA) is a smart antenna with multi channels digital beamforming, usually by using fast Fourier transform (FFT). The development and practical realization of digital antenna arrays theory started in 1962 under the guidance ...

In 1996 V. Slyusar proposed the Khatri–Rao product#Column-wise Khatri–Rao product, column-wise Khatri–Rao product to estimate four coordinates of signals sources at a

. The alternative concept of the matrix product, which uses row-wise splitting of matrices with a given quantity of rows ( Face-splitting product), was proposed by V. Slyusar in 1996 as well. After these results the

-matrix theory of

s and new

matrix Matrix most commonly refers to: * ''The Matrix'' (franchise), an American media franchise ** ''The Matrix'', a 1999 science-fiction action film ** "The Matrix", a fictional setting, a virtual reality environment, within ''The Matrix'' (franchis ...

operations was evolved (such as the Block Face-splitting product, Generalized Face-splitting product, Matrix

Derivative In mathematics, the derivative of a function of a real variable measures the sensitivity to change of the function value (output value) with respect to a change in its argument (input value). Derivatives are a fundamental tool of calculus. F ...

of Face-splitting product etc.), which used also in artificial intelligence and machine learning systems to minimization of

convolution In mathematics (in particular, functional analysis), convolution is a operation (mathematics), mathematical operation on two function (mathematics), functions ( and ) that produces a third function (f*g) that expresses how the shape of one is ...

and

tensor sketch In statistics, machine learning and algorithms, a tensor sketch is a type of dimensionality reduction that is particularly efficient when applied to vectors that have tensor structure. Such a sketch can be used to speed up explicit kernel metho ...

operations,Thomas D. Ahle, Jakob Bæk Tejs Knudsen. Almost Optimal Tensor Sketch. //Mathematics, Computer Science, Published 3 September 2019. Page 9.
ArXiv
/ref> in a popular

Natural Language Processing Natural language processing (NLP) is an interdisciplinary subfield of linguistics, computer science, and artificial intelligence concerned with the interactions between computers and human language, in particular how to program computers to pro ...

models, and hypergraph models of similarity. The Face-splitting product and his properties used for multidimensional smoothing with P-splines and

Generalized linear array model In statistics, the generalized linear array model (GLAM) is used for analyzing data sets with array structures. It based on the generalized linear model with the design matrix written as a Kronecker product. Overview The generalized linear arra ...

in the statistic in two- and multidimensional approximations of data as well.

Theory of odd-order I/Q demodulators

The theory of odd-order I/Q demodulators, which was proposed by V. Slyusar in 2014,Madodana Mfana. Optimized Soft-Core Processor Architecture for Noise Jamming: Masters of Electrical & Electronic Engineering Dissertation. - The University of Johannesburg. - December 2019. - Pages 8 - 12, 22 - 2

/ref> started from his investigations of the tandem scheme of two-stage

signal processing Signal processing is an electrical engineering subfield that focuses on analyzing, modifying and synthesizing ''signals'', such as audio signal processing, sound, image processing, images, and scientific measurements. Signal processing techniq ...

for the design of an I/Q demodulator and multistage I/Q demodulators concept in 2012. As result, Slyusar "presents a new class of I/Q demodulators with odd order derived from the even order I/Q demodulator which is characterized by linear phase-frequency relation for wideband signals".

Results in the other fields of research

V. Slyusar provided numerous theoretical works realized in several experimental radar stations with DAAs which were successfully tested.Slyusar, V.I. The way of correction of DAA receiving channels characteristics using the heterodyne signal// Proceedings of the III International Conference on Antenna Theory and Techniques, 8–11 September 1999, Sevastopol, page 244

/ref> He investigated electrical small antennas and new constructions of such antenna (radio), antennas, evolved the theory of

metamaterial A metamaterial (from the Greek word μετά ''meta'', meaning "beyond" or "after", and the Latin word ''materia'', meaning "matter" or "material") is any material engineered to have a property that is not found in naturally occurring materials. ...

s, proposed new ideas to implementation of

augmented reality Augmented reality (AR) is an interactive experience that combines the real world and computer-generated content. The content can span multiple sensory modalities, including visual, auditory, haptic, somatosensory and olfactory. AR can be de ...

, and

artificial intelligence Artificial intelligence (AI) is intelligence—perceiving, synthesizing, and inferring information—demonstrated by machines, as opposed to intelligence displayed by animals and humans. Example tasks in which this is done include speech re ...

combat vehicle A combat vehicle, also known as a ground combat vehicle, is a self-propelled, weaponized military vehicle used for combat operations in mechanized warfare. Combat vehicles can be wheeled or tracked. History Ancient The chariot is a type of ...

s as well. V. Slyusar has 68

patent A patent is a type of intellectual property that gives its owner the legal right to exclude others from making, using, or selling an invention for a limited period of time in exchange for publishing an enabling disclosure of the invention."A p ...

s, and 850 publications in the areas of

s for

s and

Life data

1981–1985 – listener of Orenburg Air Defense high military school.Оренбургское Краснознамённое, под редакцией Б. В. Шляпкина. – М.: Воениздат, 1988, 230 с. In this time started the scientific carrier of V. Slyusar, which published a first scientific report in 1985. June 1992 – defended the dissertation for a

candidate degree Candidate of Philosophy can refer to the US degree or status of Candidate in Philosophy (C.Phil. or Ph.C.) granted to Ph.D. students who have been accepted as candidates for that degree, or (as a direct translation) to degrees or former degrees at ...

(Techn. Sci.) at the Council of Military Academy of Air Defense of the Land Forces (

Kyiv Kyiv, also spelled Kiev, is the capital and most populous city of Ukraine. It is in north-central Ukraine along the Dnieper, Dnieper River. As of 1 January 2021, its population was 2,962,180, making Kyiv the List of European cities by populat ...

). The significant stage of the recognition of Vadym Slyusar’s scientific results became the defense of the dissertation for a

doctoral degree A doctorate (from Latin ''docere'', "to teach"), doctor's degree (from Latin ''doctor'', "teacher"), or doctoral degree is an academic degree awarded by universities and some other educational institutions, derived from the ancient formalism ''li ...

(Techn. Sci.) in 2000.

– since 2005, Honored Scientist and Technician of Ukraine – 2008. Since 1996 – work at Central Scientific Research Institute of Armament and Military Equipment of the Armed Forces of Ukraine (

Military Rank Military ranks are a system of hierarchical relationships, within armed forces, police, intelligence agencies or other institutions organized along military lines. The military rank system defines dominance, authority, and responsibility in a ...

Colonel Colonel (abbreviated as Col., Col or COL) is a senior military officer rank used in many countries. It is also used in some police forces and paramilitary organizations. In the 17th, 18th and 19th centuries, a colonel was typically in charge of ...

. Since 2003 – participates in

NATO The North Atlantic Treaty Organization (NATO, ; french: Organisation du traité de l'Atlantique nord, ), also called the North Atlantic Alliance, is an intergovernmental military alliance between 30 member states – 28 European and two No ...

cooperation as head of the national delegations, a person of contact, and national representative within experts groups of NATO Conference of National Armaments DirectorsSlyusar V.I
Regarding the building of the system of systems of standards
/Coordination problems of military-technical and defensive industrial policy in Ukraine. Weapons and military equipment development perspectives/ V International Scientific and Practical Conference. Abstracts of reports. - October 11–12, 2017. - Kyiv. - P. 38.«Науковці України – еліта держави». Том VI, 2020. – С. 216
/ref> and technical members of the Research Task Groups (RTG) of

Science and Technology Organisation (STO). Since 2009 – member of editorial board of Izvestiya Vysshikh Uchebnykh Zavedenii. Radioelektronika.

Selected awards

* Honored Scientist and Technician of Ukraine (2008) * Soviet and Ukraine military medals

Gallery

File:DAA slyusar.jpg, The technology demonstrator of 8-channels DAA, developed by V. Slyusar participation (

USSR The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen nationa ...

1989 File:1989 Events Collage.png, From left, clockwise: The Cypress Street Viaduct, Cypress structure collapses as a result of the 1989 Loma Prieta earthquake, killing motorists below; The proposal document for the World Wide Web is submitted; The Exxo ...

) File:DAA PCI.jpg, A digital part of 8-channels

, proposed V. Slyusar File:VEER1mm.jpg, 16-channells unit of ADCs and DSP with

CompactPCI CompactPCI is a computer bus interconnect for industrial computers, combining a Eurocard-type connector and PCI signaling and protocols. Boards are standardized to 3 U or 6U sizes, and are typically interconnected via a passive backplane. The ...

interface, proposed V. Slyusar File:DAA channels.jpg, Multichannel analogue receiver unit, patented V. Slyusar with co-authorsПатент України на корисну модель № 39243. МПК (2006) G01S 13/00, G01S 7/00, H02K 15/00. Багатоканальний приймальний пристрій.// Слюсар В.І., Волощук І.В., Алесін А. М., Гриценко В. М., Бондаренко М. В., Малащук В. П., Шацман Л. Г., Нікітін М. М. – Заявка на видачу патенту України на корисну модель № u200813442 від 21.11.2008. – Патент опубліковано 10.02.2009, бюл. № 3 File:Face_splitting_product_of_matrices.jpg, Face-splitting Product of matrices File:Penetrating face product.jpg, The Penetrating face product of matrices proposed by V. Slyusar in 1999

Scientific results

N-OFDM theory

Tensor-matrix theory of
digital antenna array Digital antenna array (DAA) is a smart antenna with multi channels digital beamforming, usually by using fast Fourier transform (FFT). The development and practical realization of digital antenna arrays theory started in 1962 under the guidance ...

Theory of odd-order I/Q demodulators

Results in the other fields of research

Life data

Selected awards

Gallery

See also

References

External links

Scientific results

N-OFDM theory

Tensor-matrix theory of digital antenna array Digital antenna array (DAA) is a smart antenna with multi channels digital beamforming, usually by using fast Fourier transform (FFT). The development and practical realization of digital antenna arrays theory started in 1962 under the guidance ...

Theory of odd-order I/Q demodulators

Results in the other fields of research

Life data

Selected awards

Gallery

See also

References

External links

Tensor-matrix theory of
digital antenna array Digital antenna array (DAA) is a smart antenna with multi channels digital beamforming, usually by using fast Fourier transform (FFT). The development and practical realization of digital antenna arrays theory started in 1962 under the guidance ...