Search results for: BEYOND UWB

• Design and Optimization of a Compact Planar Radiator for UWB Applications and Beyond

  Publication

  • M. Czyż
  • J. K. Olencki
  • A. Bekasiewicz

  - Year 2022

  A compact monopole antenna for ultra-wideband (UWB) and beyond applications has been proposed. The radiator is based on the monopole topology. The super-wideband behavior has been achieved using a combination of spline-based modifications applied to the driven element, as well as utilization of a tapered feed and a slot-modified ground plane. The electrical performance of the structure has been tuned using a numerical optimization...

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• A compact spline-enhanced monopole antenna for broadband/multi-band and beyond UWB applications

  Publication

  • M. Czyż
  • J. K. Olencki
  • A. Bekasiewicz

  - AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS - Year 2022

  In this work, a compact monopole antenna for broadband/multi-band and beyond ultra- wideband (UWB) communication has been proposed. The structure is based on a spline-enhanced radiator with a broadband feed and a modified ground plane. Rigorous design optimization of the radiator has been performed in a two-stage framework where optimization of the structure with respect to electrical performance is followed by explicit miniaturization...

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• Beyond Behavior

  Journals

  ISSN: 1074-2956 , eISSN: 2163-5323

• Kształtowanie widma sygnału UWB

  Publication

  • R. Katulski
  • J. Sadowski

  - Year 2005

  Opisano zagadnienie kształtowania widma sygnału radia impulsowego UWB, tzn. scharakteryzowano wybrane znane metody wytłumiania okreslonych częstotliwości w tym widmie, ze szczególnym zwróceniem uwagi na ograniczenia użytkowe tych metod. W nawiązaniu do tego przedstawiono propozycję zmian istniejących algorytmów, co umożliwia uzyskanie korzystniejszego przebiegu widma - zarównow poblizu wytłumianej częstotliwości, jak i również...

• Impulsowy system ultraszerokopasmowy (UWB)

  Publication

  • R. Katulski
  • J. Sadowski

  - Year 2006

  W pracy przedstawiono zasadę działania systemu radia impulsowego dla potrzeb transmisji danych o dużych przepływnościach, głównie dla potrzeb bezprzewodowych sieci osobistych (WPAN). Opisano sygnał radiowy oraz budowę i działanie układów odbiorczych w tym systemie. Poruszono problem kształtowania widma ultraszerokopasmowego sygnału impulsowego. Scharakteryzowano znane sposoby kształtowania tego widma, wskazując na ich ograniczenia....

• Ultraszerokopasmowe (UWB) radio impulsowe

  Publication

  • R. Katulski
  • J. Sadowski

  - Year 2005

  Opisano podstawy budowy i działania impulsowego systemu UWB. Poruszono problem widma sygnału radiowego w tym systemie.

• Elliptical slot UWB monopole antenna

  Publication

  • Ł. Sorokosz
  • A. Rydlewska
  • W. Zieniutycz

  - Year 2012

  The UWB monopole antenna with elliptical radiating slot end and microstrip feeding line terminated with radial stub have been designed, fabricated and measured. The antenna show return loss less than -12 dB in the whole UWB bandwidth. Linearity of the reflection coefficient phase product have also been achieved. Radiation patterns of the antenna measured at three selected frequency points indicated regular, approximately omni directional...

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• Dipol pętlowy dla technologii UWB

  Publication

  • Ł. Sorokosz
  • W. Marynowski
  • J. Mazur

  - Year 2012

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• UWB Microstrip Antennas on a Cylindrical Surfaces

  Publication

  • R. Lech
  • W. Marynowski
  • A. Kusiek

  - Year 2013

  Conformal antennas are becoming popular due to their many advantages and possibilities of applications they offer. The advantages of using antennas with a curved surface arise not only from the possibility of integrating them with the object on which they are mounted on but also from the increase, relatively to planar antennas, of their visible angular range. The circular antenna arrays, or arrays of radiators located on the surface...

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• Linguistics Beyond and Within

  Journals

  eISSN: 2450-5188

• UWB planar antenna dipole in the sandwich configuration

  Publication

  • M. Pergoł
  • W. Zieniutycz

  - Year 2009

  W pracy przedstawiono wyniki badań nad planarną anteną dipolową o ramionach kołowych, przeznaczoną dla systemu UWB. Ramiona dipola umieszczono pomiędzy dwoma warstwami dielektryka (konfiguracja kanapki) uzyskując redukcję wymiarów anteny. Stwierdzono, że impedancja wejściowa jest mniejsza, niż w przypadku pojedynczego podłoża, co umożliwia łatwiejsze dopasowanie anteny do toru zasilającego. Współczynnik odbicia w całym paśmie...

• Design of UWB coplanar antenna with reduced ground plane

  Publication

  • W. Marynowski
  • J. Mazur

  - JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS - Year 2009

  W artykule przedstawiono projekt kompaktowej anteny szerokopasmowej złożonej z dwóch kołowych pasków koplanarnych ograniczających szczelinę o podobnym kształcie. Antena zasilona była z 50 Ω linii trójpaskowej. Przeprowadzono badania wpływu zewnętrznego paska na pasmo anteny. Zaprojektowana antena została zbadana eksperymentalnie pokazując bardzo dobre parametry: w paśmie 1.7-15.5GHz uzyskano |S11| < −10dB. Antena charakteryzowała...

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• Compact Planar Balun for the UWB Dipole Feeding Network

  Publication

  • Ł. Sorokosz
  • W. Zieniutycz
  • M. Pergol

  - Year 2011

  W pracy opisano wyniki z badań numerycznych ultra szerokopasmowego symetryzatora planarnego o zredukowanych wymiarach. Układ został zaprojektowany w oparciu o konfigurację opisaną w literaturze. Względem konfiguracji bazowej, układ przeprojektowano na inne podłoże. W celu weryfikacji przydatności układu, przeprowadzono symulację anteny dipolowej zasilanej opisywanym symetryzatorem. Na podstawie otrzymanych rezultatów przekazano...

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• A structure and design of a novel compact UWB MIMO antenna

  Publication

  • S. Kozieł
  • A. Bekasiewicz

  - Year 2016

  In the paper, a concept and design procedure of a novel compact MIMO slot antenna is presented. In order to achieve a better filling of available space, individual antennas are constrained to a triangular shape and optimized for a reduced size. The MIMO structure is then assembled using the two of previously designed antennas in orthogonal arrangement. Surrogate-assisted numerical optimization involving variable-fidelity electromagnetic...

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• Fast geometry scaling of UWB band-notch antennas

  Publication

  • S. Kozieł
  • A. Bekasiewicz

  - Year 2016

  Implementation of band-notch capability plays an important role in the design of ultra-wideband (UWB) antennas. At the same time, appropriate sizing of antenna geometry parameters in order to precisely allocate the notch at the required frequency as well as to ensure sufficient reflection level is quite challenging and has to be based—for reliability reasons—on full-wave electromagnetic (EM) simulations of the structure. In this...

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• Novel structure and design of compact UWB slot antenna

  Publication

  • A. Bekasiewicz
  • S. Kozieł

  - Year 2016

  In this paper, a novel structure of a compact UWB slot antenna is presented along with a simulation-driven design optimization algorithm for adjusting geometry parameters of the device. Our primary objective is to obtain small footprint of the structure while maintaining its acceptable electrical performance. It is achieved by introducing sufficiently large number of geometry degrees of freedom, including increased number of parameterized...

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• Application of IR UWB Spectrum Shaping to IEEE 802.15.4a Standard

  Publication

  • R. Katulski
  • J. Sadowski

  - POLISH JOURNAL OF ENVIRONMENTAL STUDIES - Year 2009

  Coexistence of existing narrowband systems and new ultra wideband devices in the same frequency range requires using some interference mitigation techniques, for example based on spectrum shaping. This paper presents efficiency of impulse radio spectrum shaping methods, applied to IEEE 802.15.4a UWB alternate physical layer signals. Basic parameters of 802.15.4a signal structure and outline of proposed spectrum shaping methods...

• Dobór impulsów o zadanym widmie do systemów UWB

  Publication

  • J. Sadowski

  - Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne - Year 2010

  Problematyka dostosowania widma sygnału ultraszerokopasmowego radia impulsowego do stanu zajętości widma fal radiowych została przedstawiona w artykule, z podziałem na następujące dwa zagadnienia: projektowanie postaci czasowej generowanych impulsów przy określonych założeniach dotyczących widma wynikowego oraz modyfikacja widma impulsów przez filtrację w dziedzinie częstotliwości. Artykuł zawiera także wyniki prac badawczych,...

• Unified design procedure for planar dipoles oriented on uwb application

  Publication

  • M. Pergoł
  • W. Zieniutycz

  - Progress in Electromagnetics Research-PIER - Year 2010

  W pracy zaproponowaną ujednoliconą metodę projektowania dipoli planarnych dla zastosowań UWB. Prowadzi ona do uzyskania dobrych wyników dopasowania impedancji w paśmie UWB. Zagadnienie projektowania zostało podzielone na dwie części: projekt radiatora (dla którego określono współczynnik jakości - Radiator Quality Factor) oraz projekt symetryzatora. W oparciu o zaproponowany algorytm zaprojektowano i zrealizowano dwie anteny charakteryzujące...

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• Efficiency of IEEE 802.15.4a UWB Impulse Radio Spectrum Shaping

  Publication

  • J. Sadowski
  • R. Katulski

  - Year 2010

  This paper presents results of impulse radio signal spectrum shaping efficiency investigations. Basic parameters of IEEE 802.15.4a UWB signal and outline of proposed spectrum shaping methods are briefly described. The main part of the paper presents influence of signal and algorithms parameters on the results of spectrum shaping.

• On the approximation of the UWB dipole elliptical arms with stepped-edge polygon

  Publication

  • Ł. Sorokosz
  • W. Zieniutycz

  - IEEE Antennas and Wireless Propagation Letters - Year 2012

  A simple method of approximation of the ellipticalpatch with stepped-edge polygon is proposed as an introductionto wider studies over the planar ultrawideband (UWB) antennas.The general idea is to replace the elliptical patch with an equivalentpolygonal patch, with minimum loss in the performance. Theprinciples of the proposed method are presented in this letter, aswell as the results of performed numerical studies and its experimentalverification....

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• A Concept and Design Optimization of Compact Planar UWB Monopole Antenna

  Publication

  • A. Bekasiewicz
  • S. Kozieł

  - Year 2014

  A novel structure concept of a compact UWB monopole antenna is introduced together with a low-cost design optimization procedure. Reduced footprint is achieved by introduction of a protruded ground plane for current path increase and a matching transformer to ensure wideband impedance matching. All geometrical parameters of the structure are optimized simultaneously by means of surrogate based optimization involving variable-fidelity...

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• Concept of Compatibility Region for the Evaluation of IR UWB Electromagnetic Compatibility

  Publication

  • R. Katulski
  • J. Sadowski

  - Year 2014

  This paper presents a new proposal for the unified evaluation of ultra wideband and narrowband radio communication systems electromagnetic compatibility, called “compatibility region”. The idea of compatibility region is based on the relation between the ratio of narrowband to ultra wideband signal power in a receiver and some transmission quality indicators (bit error rate, effective data rate).

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• Multi-objective optimization for assessment of topological modification in UWB antennas

  Publication

  • A. Bekasiewicz
  • S. Kozieł

  - Year 2017

  This paper addresses an issue of systematic and rigorous assessment of effects of topological modifications on the performance of compact UWB antennas. Application of fast surrogate-assisted multi-objective optimization procedures allows us for obtaining, in a practically acceptable timeframe, a set of designs representing the best possible trade-offs between conflicting objectives (here, antenna size minimization and reduction...

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• System Loss in UWB Off-Body Communications in a Ferry Environment

  Publication

  • K. Cwalina
  • S. J. Ambroziak
  • P. Rajchowski

  - Year 2018

  In this paper, the system loss in UWB off-body communications in a ferry environment based on measurements is presented. A mobile measurement set-up, consisting of WBAN nodes with UWB DWM1000 modules, was used. System loss was split into LOS and NLOS conditions. For the former, the smallest mean value, 24.4 dB, was obtained for the user approaching the fixed terminal, with the antenna on his chest, and the largest, 28.1 dB, for...

• English Scholarship Beyond Borders

  Journals

  eISSN: 2410-9096

• Narrowband Transmission Quality in Presence of Modified IEEE 802.15.4a UWB Signal

  Publication

  • J. Sadowski
  • R. Katulski

  - Year 2010

  This paper presents results of measurement of narrowband transmission quality in presence of impulse radio UWB interference. In the first part of paper, unmodified IEEE 802.15.4a IR UWB signal is used. Then some modification of transmitted pulse sequence is proposed, which allow to reduce UWB power spectral density at frequency of narrowband transmission. Finally narrowband transmission quality in presence of modified ultrawideband...

• Narrowband Transmission Quality in Presence of Modified IEEE 802.15.4a UWB Signal

  Publication

  • J. Sadowski
  • R. Katulski

  - Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne - Year 2010

  Publikacja przedstawia opis stanowiska laboratoryjnego użytego do badania wpływu zakłóceń impulsowych na jakość odbioru sygnałów wąskopasmowych. Przedstawione zostały przykładowe wyniki pomiaru jakości transmisji wąskopasmowych wraz z wykazaniem, że modyfikacja widma zakłócającego sygnału IR UWB powoduje poprawę jakości odbioru sygnałów wąskopasmowych.

• Narrowband Transmission Quality in Presence of Modified IEEE 802.15.4a UWB Signal

  Publication

  • J. Sadowski
  • R. Katulski

  - Year 2011

  This paper presents results of measurement of narrowband transmission quality in presence of impulse radio UWB interference. In the first part of paper, unmodified IEEE 802.15.4a IR UWB signal is used. Then some modification of transmitted pulse sequence is proposed, which allow to reduce UWB power spectral density at frequency of narrowbandtransmission. Finally narrowband transmission quality in presence of modified ultrawideband...

• New method of IEEE 802.15.4a UWB Impulse Radio Spectrum Shaping

  Publication

  • J. Sadowski
  • R. Katulski

  - Year 2011

  This paper presents a new technique of IEEE 802.15.4a ultra-wideband signal spectrum control, based on changes in sequences of transmitted pulses with very short duration time. Basic parameters of UWB signal and outline of proposed spectrum shaping methods are briefly described. The main part of the paper presents influence of signal and algorithms parameters on the results of spectrum shaping.

• Novel Structure and EM-Driven Design of Small UWB Monopole Antenna

  Publication

  • S. Kozieł
  • A. Bekasiewicz

  - Year 2014

  A novel structure of a small UWB monopole antenna is presented. In our approach, a compact size is achieved by means of a meander line for current path enlargement as well as the two parameterized slits that introduce additional degrees of freedom helping to ensure good impedance matching. The antenna design is carried out using surrogate-based optimization involving variable-fidelity EM simulations. This allows us to simultaneously...

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• A structure and simulation-driven design of compact CPW-fed UWB antenna

  Publication

  • S. Kozieł
  • A. Bekasiewicz

  - IEEE Antennas and Wireless Propagation Letters - Year 2016

  In this letter, a structure of a miniaturized ultra-wideband CPW-fed antenna and its design proce-dure are presented. The antenna is a modified version of the design previously proposed in the literature, with additional degrees of freedom introduced in order to improve the structure flexibility. The small size is achieved by executing a rigorous optimization procedure that consists of two stages: (i) smart random search carried...

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• Fast simulation-driven design optimization of UWB band-notch antennas

  Publication

  • S. Kozieł
  • A. Bekasiewicz

  - IEEE Antennas and Wireless Propagation Letters - Year 2016

  In this letter, a simple yet reliable and automated methodology for rapid design optimization of ultra-wideband (UWB) band-notch antennas is presented. Our approach is a two-stage procedure with the first stage focused on the design of the antenna itself, and the secondstage aiming at identification of the appropriate dimensions of the resonator with the purpose of allocating the band-notch in the desired frequency range. For the...

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• Imitating Quantum Probabilities: Beyond Bell’s Theorem and Tsirelson Bounds

  Publication

  • M. Czachor
  • K. Nalikowski

  - Foundations of Science - Year 2024

  Local hidden-variable model of singlet-state correlations discussed in M. Czachor, Acta Phys. Polon. A 139, 70, is shown to be a particular case of an infinite hierarchy of local hidden-variable models based on an infinite hierarchy of calculi. Violation of Bell-type inequalities can be interpreted as a `confusion of languages' problem, a result of mixing different but neighboring levels of the hierarchy. Mixing of non-neighboring...

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• Beyond clinical care: the pharmacoeconomic and research roles of pharmacists in Poland

  Publication

  • I. Pawłowska
  • N. Krzyzaniak
  • L. Pawłowski
  • I. Kocić

  - Acta Poloniae Pharmaceutica - Drug Research - Year 2019

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• Growth and characterization of chalcopyrite nanocrystals: beyond conventional thin films

  Publication

  • D. Fuertes Marrón
  • S. Lehmann
  • J. Kosk
  • S. Sadewasser
  • M. Lux-Steiner

  - Year 2007

  Przedstawiona została sucha metoda wytwarzania na podłożach stałych kryształów chalkopirytu zawierających miedź z wykorzystaniem prekursorów metalicznych. Dzięki odpowiedniemu doborowi parametrów nakładania otrzymano zarówno nanokryształy oraz polikrystaliczne struktury submikronowe jak i makroskopowe klastry. Zamieszczona została charakterystyka wytworzonych materiałów otrzymana techniką mikroskopii skaningowej.

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• Novel Nuclear Functions of Arabidopsis ARGONAUTE1: Beyond RNA Interference

  Publication

  • M. Bajczyk
  • S. Bhat
  • L. Szewc
  • Z. Szweykowska-Kulinska
  • A. Jarmolowski
  • J. Dolata

  - PLANT PHYSIOLOGY - Year 2019

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• A review of digital fashion research: before and beyond communication and marketing

  Publication

  • T. Nobile
  • A. Noris
  • N. Kalbaska
  • L. Cantoni

  - International Journal of Fashion Design, Technology and Education - Year 2021

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• Listening to Live Music: Life beyond Music Recommendation Systems

  Publication

  • B. Kostek

  - Year 2018

  This paper presents first a short review on music recommendation systems based on social collaborative filtering. A dictionary of terms related to music recommendation systems, such as music information retrieval (MIR), Query-by-Example (QBE), Query-by-Category (QBC), music content, music annotating, music tagging, bridging the semantic gap in music domain, etc. is introduced. Bases of music recommender systems are shortly presented,...

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• Expedited simulation-driven design optimization of UWB antennas by means of response features

  Publication

  • S. Kozieł
  • A. Bekasiewicz

  - INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING - Year 2017

  In this work, a method for fast design optimization of broadband antennas is considered. The approach is based on a feature-based optimization (FBO) concept where reflection characteristics of the structure at hand are formulated in terms of suitably defined feature points. Redefinition of the design problem allows for reducing the design optimization cost, because the dependence of feature point coordinates on antenna dimensions...

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• The Linear Array 2x1 of Slot Monopoles for 6-8.5 GHZ UWB Standard

  Publication

  • T. Leliwa
  • W. Zieniutycz

  - Year 2022

  The results of numerical simulations and measurements of 2x1 linear array of slot monopoles are presented in the paper. At the begining a single slot monopole was designed. Next the 2x1 linear array of these monopoles was numerically tested for various configurations of the feeding network. The single monopole and the array were fabricated and the results of the measurements of the reflection coefficients and the radiationpatterns...

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• Badania pomiarowe jakości transmisji wąskopasmowych w obecności zakłóceń UWB IR

  Publication

  • J. Sadowski

  - Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne - Year 2010

  Referat przedstawia wyniki pomiarów laboratoryjnych jakości transmisji w systemach wąskopasmowych (mierzonej bitową stopą błędów) w obecności ultra-szerokopasmowych zakłóceń radia impulsowego. Opisano budowę stanowiska pomiarowego i strukturę zakłócającego sygnału UWB, zarówno zgodnego ze standardem IEEE 802.15.4a jak i zmodyfikowanego przez zmianę struktury czasowej nadawanej sekwencji impulsów.

• Size-Reduction-Oriented Design of Compact CPW-Fed UWB Monopole Antenna

  Publication

  • S. Kozieł
  • A. Bekasiewicz

  - Year 2016

  A structure and design optimization of compact CPW-fed UWB monopole antenna is presented. Explicit size reduction through constrained numerical optimization of all relevant geometry parameters of the structure leads to a very small footprint of only 321 mm2. At the same time, a very wide antenna bandwidth is achieved from 3.1 GHz to 17 GHz.

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• FINITE GROUND CPW-FED UWB ANTENNA OVER THE METALLIC CYLINDRICAL SURFACES

  Publication

  • R. Lech
  • W. Marynowski
  • A. Kusiek

  - Progress in Electromagnetics Research-PIER - Year 2013

  The investigation of finite ground coplanar fed ultra-wideband (UWB) antenna and the influence of its curvature and the proximity of circular metallic screen on the reflection coefficients and radiation characteristics is presented. The antenna is composed of two circular coplanar strips which enclose slot aperture of similar shape and is designed on a thin and flexible substrate which allows its bending. The antenna configuration...

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• Structure and computationally-efficient simulation-driven design of compact UWB monopole antenna

  Publication

  • A. Bekasiewicz
  • S. Kozieł

  - IEEE Antennas and Wireless Propagation Letters - Year 2015

  In this letter, a structure of a small ultra-wideband (UWB) monopole antenna, its design optimization procedure as well as experimental validation are presented. According to our approach, antenna compactness is achieved by means of a meander line for current path enlargement as well as the two parameterized slits providing additional degrees of freedom that help to ensure good impedance matching. For the sake of reliability, the...

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• Fast Simulation-Driven Design of a Planar UWB Dipole Antenna with an Integrated Balun

  Publication

  • S. Kozieł
  • S. Ogurtsov
  • W. Zieniutycz
  • A. Bekasiewicz

  - Year 2015

  The paper presents a design of an ultra-wideband (UWB) antenna with an integrated balun. A fully planar balun interfacing the microstrip input of the structure to the coplanar stripline (CPS) input of the dipole antenna is introduced. The electromagnetic (EM) model of the structure includes the dipole, the balun, and the microstrip input to account for interactions over the UWB band. The EM model is adjusted for low reflection...

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• Low-cost multi-objective optimization and experimental validation of UWB MIMO antenna

  Publication

  • S. Kozieł
  • A. Bekasiewicz

  - ENGINEERING COMPUTATIONS - Year 2016

  Purpose–The purpose of this paper is to validate methodologies for expedited multi-objective designoptimization of complex antenna structures both numerically and experimentally.Design/methodology/approach–The task of identifying the best possible trade-offs between theantenna size and its electrical performance is formulated as multi-objective optimization problem.Algorithmic frameworks are described for finding Pareto-optimal...

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• Comprehensive comparison of compact UWB antenna performance by means of multi-objective optimization

  Publication

  • S. Kozieł
  • A. Bekasiewicz

  - IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION - Year 2017

  An optimization-based procedure for comprehensive performance comparison of alternative compact UWB antenna topologies is discussed. The assessment of the antenna performance is conducted with respect to the structure size and its reflection response. More specifically, the best possible tradeoffs between these two figures of merit are identified through multiobjective optimization at the level...

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• ZASTOSOWANIE FILTRACJI CZĄSTECZKOWEJ DO ESTYMACJI POŁOŻENIA W SYSTEMIE LOKALIZACYJNYM UWB

  Publication

  • J. Magiera

  - Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne - Year 2019

  Niniejszy artykuł dotyczy kwestii poprawy dokładności estymacji położenia w systemie lokalizacji wewnątrzbudynkowej, bazującym na radiowych pomiarach odległości realizowanych przez modemy UWB. Proponuje się zastosowanie metody filtracji cząsteczkowej do zmniejszenia błędu wyznaczania pozycji obiektu przy braku bezpośredniej widoczności ze stacją referencyjną. W artykule opisano algorytm filtru cząsteczkowego, jego przykładową implementację...

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• Modyfikacja sposobu wytłumiania wybranej częstotliwości w widmie sygnału UWB-IR

  Publication

  • R. Katulski
  • J. Sadowski

  - Year 2006

  W artykule przeanalizowano wybraną metodę kształtowania widma impulsowego sygnału UWB przez odpowiedni dobór stosowanych ciągów pseudoprzypadkowych. Opisano opracowaną modyfikację tej metody polegającą na zastosowaniu dodatkowej modulacji amplitudy generowanych impulsów, co w rezultacie poprawia jakość wytłumiania niepożądanej częstotliwości w widmie sygnału UWB-IR. Przedstawiono wyniki porównawcze wykonanych w tym zakresie badań...