Search results for: RADIO PROGRAMOWALNE

• Radio Link Measurement Methodology for Location Service Applications

  Publication

  • J. Stefański

  - Metrology and Measurement Systems - Year 2012

  The aim of this paper is the methodology of measurements executed in a radio link for the realization of radiolocation services in radiocommunication networks, particularly in cellular networks. The main results of the measurements obtained in the physical layer of the universal mobile telecommunications system (UMTS) are introduced. A new method for the utilization of the multipath propagation phenomenon to improve the estimation...

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• Accuracy analysis of the radio location service in the sea environment

  Publication

  • R. Katulski
  • J. Stefański
  • R. Niski
  • J. Żurek

  - POLISH JOURNAL OF ENVIRONMENTAL STUDIES - Year 2007

  W artykule przedstawiono koncepcję systemu bezpieczeństwa na morzu w oparciu o istniejące systemy komórkowe. Scharakteryzowano problem lokalizowania terminala ruchomego przez sieć w warunkach morskich. Przedstawiono wyniki badań przeprowadzonych w warunkach rzeczywistych w odniesieniu do efektywności lokalizowania terminala na morzu. Przedstawiono wnioski, wypływające z przeprowadzonych analiz.

• Design of radio communication systems for unmanned transport applications

  Publication

  • S. Gajewski

  - Archives of Transport System Telematics - Year 2016

  In the paper the principle of OFDMA-based radio communication systems design for unmanned transport applications is presented. The concept of system radio interface is analysed and its basic parameters proposal are considered. In the last part of the paper some air interface characteristics useful for optimization of throughput and system capacity are considered.

• Towards 5G — Cloud-based Radio Access Networks

  Publication

  • S. Gajewski

  - Zeszyty Naukowe Akademii Marynarki Wojennej - Year 2017

  In the paper a general concept of the 5G network architecture is presented as well as system requirements having impact on innovative solutions in the 5G network are highlighted. A major part of the paper is both presentation and discussion of the problem of Cloud Radio Access Network introduction for public networks in which the cell and resource virtualisation will be implemented. On the other hand, the problem of resource virtualization...

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• Emulator analogowych uszkodzeń parametrycznych w programowalnym systemie jednoukładowym

  Publication

  • W. Toczek

  - Year 2011

  W referacie przedstawiono emulator uszkodzeń analogowych bazujacy na mikrosystemie jednoukładowym. Użycie struktur programowalnych znacznie ułatwia wprowadzanie uszkodzeń parametrycznych pojedynczych i wielokrotnych w szerokim zakresie zmian wartości parametrów. Urzadzenie służy do wspomagania badań w zakresie testowania zorientowanego na uszkodzenia. Mechanizm dynamicznej rekonfiguracji układu obniża koszty i przyspiesza eksperymentalną...

• Efektywne programowanie procesora TMS320C6711 przy użyciu pakietu SIMULINK.

  Publication

  • G. J. Grabowski
  • P. Szczepankowski
  • J. Frąckowiak
  • J. Nieznański

  - Year 2004

  W artykule opisano alternatywny, w stosunku do standardowych metod kodowania, sposób programowania procesora TMS320C6711 z wykorzystaniem bibliotek pakietu SIMULINK. Scharakteryzowano własności karty uruchomieniowej ze zmiennoprzecinkowym procesorem sygnałowym TMS320C6711 firmy Texas Instruments, pod kątem tworzenia programów do układów prototypowych. Opisano także cechy pakietu SIMULINK jako wydajnego narzędzia pozwalającego na...

• Symulator Sym-PS4 sterownika programowalnego PS4-201-MM1

  Publication

  • I. Mosoń
  • K. Żukowski

  - Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej - Year 2002

  W pracy przedstawiono opis opracowanego programowego symulatora Sym-PS4 sterownika programowalnego PS4-201-MM1. Symulator umożliwia tworzenie i testowanie programów sterowania napisanych dla samego sterownika, jak również programów napisanych dla sterownika z dołączonymi do niego modułami rozszerzenia lokalnego LE4. Symulator posiada możliwość dołączania do niego tworzonych modeli sterowanych obiektów i pozwala na symulację działania...

• Technika radia impulsowego

  Publication

  • R. Katulski
  • J. Sadowski

  - Year 2005

  Przedstawiono zasadę działąnia analogowego oraz cyfrowego systemu radia impulsowego. Omówiono strukturę stosowanych sygnałów oraz budowę i działanie układów odbiorczych w tym systemie.

• Object oriented grid computing for computational electromagnetics

  Publication

  • P. Sypek
  • M. Mrozowski

  - Year 2006

  Artykuł opisuje bibliotekę WiCommGrid napisaną w języku java, która realizuje ideę wymiany informacji pomiędzy węzłami środowiska rozproszonego z zastosowaniem programowania zorientowanego obiektowo. Biblioteka ta przystosowana jest do współdziałania z wieloma systemami operacyjnymi oraz z rożnym środowiskiem sprzętowym. Zbudowaną aplikację zastosowano do zrównoleglonych obliczeń rozkładu pola elektromagnetycznego w oparciu o algorytm...

• A field programmable analog array for CMOS continuous-time OTA-C filter applications

  Publication

  • B. Pankiewicz
  • M. Wójcikowski
  • S. Szczepański
  • Y. Sun

  - IEEE JOURNAL OF SOLID-STATE CIRCUITS - Year 2002

  W artykule opisano programowalny wzmacniacz transkonduktancyjny oraz konfigurowalny blok analogowy CAB składający się ze wzmacniacza transkonduktancyjnego, kluczy oraz programowalnego kondensatora. Z bloków CAB można zbudować uniwersalne, programowalne filtry. Wzmacniacz transkondukancyjny został przesymulowany oraz wykonany w technologii CMOS. Wyniki pomiarów pokazują, że transkonduktancja wzmacniacza może być przestrajana ponad...

• 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.

• Radio wave propagation conditions for terrestrial radiocommunications in the EHF band

  Publication

  • K. Bronk
  • R. Katulski
  • A. Lipka

  - International Journal of Electronics and Telecommunications - Year 2008

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• Propagation analysis of the point-to-point radio links operating in the band

  Publication

  • K. Bronk
  • R. Katulski
  • A. Lipka

  - POLISH JOURNAL OF ENVIRONMENTAL STUDIES - Year 2009

  The theoretical possibilities of utilizing the EHF-band frequencies for point-to-point short range communications have been discussed. The most important factors that affect propagation attenuation in this band have been briefly described, as well as relevant mathematical formulas that allow for numerical analysis of these phenomena. After that, a research have been carried out in which the authors have analyzed propagation losses...

• On efficiency of layer 2 of the radio interface protocol stack in UMTS

  Publication

  • P. Matusz

  - Year 2006

  Celem pracy jest szczegółowa analiza funkcjonowania warstwy łącza danych w podsystemie dostępu radiowego UTRAN systemu UMTS i na tej podstawie przedstawienie szeregu zmian i usprawnień oraz wskazówek odnośnie konfiguracji protokołów, jakie należy w tej warstwie zastosować aby zmaksymalizować jej wydajność głównie pod kątem oferowanej przepływności, wprowadzanych opóźnień oraz wsparcia priorytetów przesyłanego ruchu. Teza pracy...

• Efficient methods for radio location service in cellular communication networks

  Publication

  • J. Stefański

  - POLISH JOURNAL OF ENVIRONMENTAL STUDIES - Year 2007

  W artykule przedstawiono dwie oryginalne metody lokalizowania terminala ruchomego w sieciach komórkowych trzeciej generacji. Metody te podczas estymacji położenia terminala nie wymagają znajomości różnicy czasów w synchronizacji poszczególnych stacji bazowych, przez co są tanie w implementacji. Przedstawiono wyniki badań symulacyjnych zaproponowanych metod.

• Performance analysis and optimization of the Radio Link Control layer in UMTS.

  Publication

  • P. Matusz
  • J. Woźniak

  - Year 2004

  RLC (Radio Link Control) jest jedną z podwarstw warstwy 2 stosu radiowego systemu UMTS. RLC wspiera trzy podstawowe tryby działania: przezroczysty (Transparent Mode, TM), bezpotwierdzeniowy (Unacknowledged Mode, UM) oraz potwierdzeniowy (Acknowledged Mode, AM). Wydajność RLC AM jest mocno uzależniona od konfiguracji RLC oraz jej zdolności do dynamicznej rekonfiguracji, odzwierciedlającej zmiany w przesyłanym ruchu oraz w jakości...

• Radio Channel Measurements in Body-to-Body Communications in Different Scenarios

  Publication

  • S. J. Ambroziak
  • L. M. Correia
  • K. Turbić

  - Year 2016

  This paper presents body-to-body radio channel measurements at the 2.45 GHz band, for different body motion scenarios and on-body antenna placements, and both indoor and outdoor environments. Measurement equipment, investigated scenarios and considered environments are described, an initial analysis of results being presented. The mean path loss and the standard deviation depend on the mutual location of transmitting and receiving...

• Radio Channel Measurements in Body-to-Body Communications in Different Scenarios

  Publication

  • S. J. Ambroziak
  • L. M. Correia
  • K. Turbić

  - Year 2016

  This paper presents body-to-body radio channel measurements at the 2.45 GHz band, for different body motion scenarios and on-body antenna placements, and both indoor and outdoor environments. Measurement equipment, investigated scenarios and considered environments are described, an initial analysis of results being presented. The mean path loss and the standard deviation depend on the mutual location of transmitting and receiving...

• Hybrid Laboratory of Radio Communication With Online Simulators and Remote Access

  Publication

  • J. Sadowski
  • J. Stefański

  - IEEE Transactions on Education - Year 2024

  Contribution: Two toolsets for the remote teaching of radio communication laboratory classes: 1) online simulators for individual work of students and 2) a remote access system to laboratory workstations for group work. Initial assumptions and method of implementation of both tools are presented. Background: The COVID-19 pandemic has forced a change in teaching at all levels of education. The specificity of practical classes, such...

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• Measurement of Coherence Bandwidth in UHF Radio Channels for Narrowband Networks

  Publication

  • J. Sadowski

  - International Journal of Antennas and Propagation - Year 2015

  This paper presents results of investigation on the coherence bandwidth of narrowband radio channels in 430MHz band. The coherence bandwidth values were estimated froma power delay profile obtained by recording CDMA2000 forward channel signals during real-fieldmeasurements in various environments:mediumcity, flat terrain, and hilly terrain in northern Poland.The results of measurements are compared with characteristic parameters...

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• DAB vs DAB+ Radio Broadcasting: a Subjective Comparative Study

  Publication

  • P. Falkowski-Gilski

  - Archives of Acoustics - Year 2017

  In the age of digital media, delivering high quality content to consumers is one of the most demanding tasks. There exist numerous broadcasting standards, with different pros and cons, and the DAB/DAB (Digital Audio Broadcasting) system is one of the most popular among them. From an engineer’s perspective, efficient resource management under limited bandwidth conditions has always been a challenge. In this paper a subjective quality...

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• Radio Simulcasting at a Glance: a New Look at Broadcasting and Streaming Services

  Publication

  • P. Falkowski-Gilski

  - Year 2018

  Radio is by far one of the most popular and accessible medium. With its availability it attracts listeners all around the world. There are numerous ways of delivering content to consumers. The present situation is characterized by the convergence of acoustics, computer science and telecommunications. This paper reviews the current status of radio broadcasting and streaming services. It describes a subjective study concerning different...

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• Transmission Quality in MC-CDMA Radio Interface with Turbo Codes

  Publication

  • A. Marczak

  - Year 2012

  Multi-Carrier Code Division Multiple Access techiques is a combination of two radio access techniques: Code Division Multiple Access (CDMA) and Orthogonal Frequency-called Division Multiplexing (OFDM) and has the advantages of both techniques. The paper presents the design of transmitter and receiver for MC-CDMA radio interface and the simulation results of the transmission quality in AWGN channel.

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• Radio- and photosensitization of DNA with compounds containing platinum and bromine atoms

  Publication

  • M. Śmiałek-Telega
  • S. Ptasińska
  • J. Gow
  • S. Hoffmann
  • N. J. Mason

  - EUROPEAN PHYSICAL JOURNAL D - Year 2015

  . Irradiations of plasmid DNA by both X-rays and UV light in the presence and absence of compounds containing platinum and bromine atoms were performed in order to asses the sensitization potential of these compounds. Plasmid DNA pBR322 was incubated with platinum (II) bromide, hydrogen hexabromoplatinate (IV), hydrogen hexahydroxyplatinate (IV) and sodium hexahydroxyplatinate (IV). Incubation was followed by X-ray or UV irradiations....

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• Selective jamming of OFDM transmission in NB-IoT radio interface

  Publication

  • J. Magiera

  - Year 2023

  The paper presents the concept of smart jamming, which involves selective interference aimed at critical components of the OFDM signal. Research verifying the feasibility of this type of electronic attack are described. A realized testbed for jamming real NB-IoT signals in a downlink is presented. The test results demonstrate the feasibility of realizing selective jamming and its greater effectiveness compared to barrage interference.

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• A History of Maritime Radio-Navigation Positioning Systems used in Poland

  Publication

  • C. Specht
  • A. Weintrit
  • M. Specht

  - JOURNAL OF NAVIGATION - Year 2016

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• Architektura i programowanie inteligentnych sterowników opartych na układach mikroprocesorowych.

  Publication

  • Z. Kowalczuk
  • P. Raczyński

  - elektro.info - Year 2006

  Zaprezentowano zasoby i architekturę mikrokontrolerów. Przedstawiono ideę sterowania z wykorzystaniem systemu komputerowego oraz kryteria doboru komputera do realizacji programów sterujących obiektami w czasie rzeczywistym. Scharakteryzowano metody wymiany informacji systemu komputerowego z otoczeniem. Wskazano na możliwości rozbudowy zasobów mikrokontrolera. Opisano przykładową aplikację.

• Implementacja odbiornika RAKE w technologii SDR (Software Defined Radio)

  Publication

  • R. Katulski
  • W. Siwicki
  • J. Stefański

  - Zeszyty Naukowe Wydziału ETI Politechniki Gdańskiej. Technologie Informacyjne - Year 2010

  Różnorodność standardów systemów radiokomunikacyjnych, w tym telefonii komórkowej i bezprzewodowej, przy dużej ruchliwości ich abonentów, powoduje, że niezbędne jest skonstruowanie wielosystemowego terminala ruchomego, mającego techniczne możliwości współpracy z systemami radiokomunikacyjnymi działającymi w różnych standardach. W ten sposób zrodziła się idea radia definiowanego programowego SDR (Software Define Radio), bazująca...

• IEEE 802.15.4a Impulse Radio Spectrum Shaping by Changes in Pulse Sequence

  Publication

  • R. Katulski
  • J. Sadowski

  - Year 2009

  This paper presents one of possible techniques of IEEE 802.15.4a ultra-wideband signal spectrum control, based on changes in sequences of transmitted pulses with very short duration time. This technique can reduce probability of mutual interferences between new ultra-wideband and existing narrowband devices, which may be helpful in further studies on allowing UWB transmission in wider range of spectrum in theEuropean Union.

• Capacity Estimation of the OFDMA and SC-FDMA Radio Interface for UMTS-LTE

  Publication

  • S. Gajewski

  - POLISH JOURNAL OF ENVIRONMENTAL STUDIES - Year 2009

  In the paper a method of capacity estimation for the UMTS-LTE interface is presented. Both the OFDMA and SC-FDMA technology has been considered. A method of physical resource allocation for users is mentioned and analytical results of theoretical throuhput calculation are described.

• Universal software radio peripheral as a receiver and DSP platform for a passive radar

  Publication

  • B. Szlachetko
  • A. Lewandowski
  • G. Haza

  - Year 2010

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• 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.

• Low Power Baseband Processor for M2M Reconfigurable Radio Test Platform

  Publication

  • K. Bizewski
  • Ł. Kulas
  • K. Nyka

  - Year 2012

  Software Defined Radio (SDR) is becoming more andmore frequently used technique for wireless communication. Itfacilitates as fast prototyping and is a versatile method fordeveloping new communication systems. SDR can be realizedbased on high computational capacity platform, where powerconsumption is no a primary concern like i.e. DVB or BTStransmitters. Another trend are low power systems, whereavailable power in reduced and more...

• Empirical formulas for determination of the propagation loss in urban radio access links

  Publication

  • R. Katulski
  • A. Kiedrowski

  - Year 2005

  Opisano wielowariantowy model empiryczny tłumienia propagacyjnego przeznaczonego do analizowaniai projektowania radiowych systemów dostępwych w warunkach zabudowy miejskiej, opracowanego na podstawie obszernych pomiarów tego tłumienia w rzeczywistych warunkach takiej zabudowy. Scharakteryzowano przydatność użytkową tego modelu.

• Spectrum Sensing Based on Hybrid Spectrum Handoff in Cognitive Radio Networks

  Publication

  • L. Vaduganathan
  • S. Neware
  • P. Falkowski-Gilski
  • P. B. Divakarachari

  - ENTROPY - Year 2023

  The rapid advancement of wireless communication combined with insufficient spectrum exploitation opens the door for the expansion of novel wireless services. Cognitive radio network (CRN) technology makes it possible to periodically access the open spectrum bands, which in turn improves the effectiveness of CRNs. Spectrum sensing (SS), which allows unauthorized users to locate open spectrum bands, plays a fundamental part in CRNs....

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• Position and Orientation Estimation in Radio Network With Groups of Locally Synchronized Nodes

  Publication

  • J. Sadowski
  • J. Stefański

  - IEEE Access - Year 2023

  This article presents a positioning system with groups of locally synchronized nodes. A mobile object is equipped with a group of several synchronized receivers that are able to measure the difference in the time of arrival of signals from reference transmitters. The reference transmitters are synchronized only in local groups, with no global synchronization between groups. It is assumed that the synchronous operation of transmitters...

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• Efficiency of the Use of LTE System Radio Resources in Highway Transport Enironment

  Publication

  • S. Gajewski

  - Archives of Transport System Telematics - Year 2014

  The paper describes the problem of analysis of throughput-coverage characteristics of the LTE system. Simulation results of the efficiency of the use of LTE radio resources are presented. Simulation studies on the basis of original model of the LTE network simulator were carried out. In addition, the evaluation of throughput for a single connection, and available capacity were evaluated in the context of the use of the same...

• Impact of radio wave polarisation on off-body communications in indoor environments

  Publication

  • S. J. Ambroziak
  • L. M. Correia
  • R. Katulski
  • M. Maćkowiak

  - Year 2015

  This paper describes the measurements and the analysis of the impact of radio wave polarisation on off-body communications in Body Area Networks in indoor environments. Measurements on polarisation impact are briefly described. Five investigated scenarios with different body postures and different antenna placements are characterised. The difference between the vertical and horizontal components of the received radio signal are...

• An Empirical Propagation Model for Mobile Radio Links in Container Terminal Environment

  Publication

  • S. J. Ambroziak
  • R. Katulski

  - IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY - Year 2013

  In this paper, a novel empirical propagation model for mobile radio links in a container terminal environment is presented. Measurement propagation research carried out in the Deepwater Container Terminal (DCT) in Gdańsk, Poland is described, and the investigated environment is characterized. The results of the statistical evaluation of the new model are discussed. In addition, statistical tuning of the Walfisch–Ikegami model for...

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• Measurements of High-Speed Data Transmission Radio Link for Special Applications

  Publication

  • P. T. Kosz
  • P. Rajchowski
  • K. Cwalina
  • J. Stefański
  • J. Sadowski

  - Year 2017

  In the article measurements of high-speed data transmission radio link for special applications were presented. Build measurement stand, measurement scenario and obtained results were briefly described. All conducted research work took place in real maritime environment.

• Radio Channel Measurements in Off-Body Communications in a Ferry Passenger Cabin

  Publication

  • P. T. Kosz
  • S. J. Ambroziak
  • L. M. Correia

  - Year 2017

  This paper presents an off-body radio channel measurements in a ferry passenger cabin at 2.45 GHz band, for static sleeping scenarios with different body orientation and on-body antennas placements, and also for upper and lower sleeping berths. The measurements have been performed with two types of on-body wearable receiving antennas: FlexPIFA (flexible planar inverted F antenna), and FlexNotch (flexible adhesive-backed notch antenna)...

• Wideband Signal Generation for Jamming Radio-Controlled Improvised Explosive Devices

  Publication

  • J. Magiera

  - Year 2018

  This paper focuses on modelling operation of a wideband jamming signal generator, considering the effects present in real device which influence the shape of transmitted signal’s spectrum. Introduction is followed by a brief overview of AEGIS project, aim of which is to develop a mobile generator of electromagnetic curtain. Next, simulation model is described which includes the factors...

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• Path Loss Measurements in Wideband Radio Link Designed for Maritime Environment

  Publication

  • P. Rajchowski
  • K. Cwalina
  • P. T. Kosz
  • J. Stefański
  • J. Sadowski

  - Year 2018

  In the article, the research and analysis of path loss in designed and evaluated digital radio link for high-speed data transmission in maritime environment is presented. Collected samples of received signal were used to determine the mean path loss and its standard deviation. Measuring campaign was carried out in a real maritime conditions. The mean value of path loss reached 126 dB on a distance of 11.16 km.

• Implementacja automatycznych metod strojenia nastaw regulatora PID w sterowniku programowalnym

  Publication

  • M. Adamkiewicz
  • P. Damps
  • K. Gryń
  • R. Piotrowski

  - Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej - Year 2015

  Zainteresowanie środowiska przemysłowego klasycznymi algorytmami regulacji, dającymi akceptowalne wyniki pracy i stabilność w odniesieniu do zmiennych warunków otoczenia, wciąż jest bardzo duże. W artykule opisano wybrane inżynierskie metody doboru nastaw regulatora PID. Przedstawiono implementację sprzętową jednej z nich (metoda Åströma-Hägglunda) w sterowniku programowalnym PLC, umożliwiającą automatyczny dobór nastaw regulatora....

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• Międzysystemowa kompatybilność elektromagnetyczna radia impulsowego

  Publication

  • R. Katulski
  • J. Sadowski

  - Zeszyty Naukowe Wydziału ETI Politechniki Gdańskiej. Technologie Informacyjne - Year 2006

  W referacie przedstawiono uwarunkowania kompatybilnościowe transmisji ultraszerokopasmowej, z uwzględnieniem wymagań FCC (Federal Communications Commission). W szczególności scharakteryzowano system radia impulsowego oraz kształtowania widma częstotliwości zajmowanego przez transmisję impulsową.

• Narrowband Transmission Quality in Presence of Modified IEEE 802.15.4a Impulse Radio Interference

  Publication

  • J. Sadowski

  - Year 2011

  This paper presents results of measurement of narrowband transmission quality in presence of impulse radio UWB interference. IEEE 802.15.4a UWB signal is being used as interferer, also with frame structure modifications which lead to change spectrum of the interference. Equations and coefficients which allow to calculate ratio between power of useful and interference signal are also presented.

• Radio-photoluminescence of highly irradiated Lif:Mg,Ti and Lif:Mg,Cu,P detectors

  Publication

  • A. Mrozik
  • P. Bilski
  • B. Marczewska
  • B. Obryk
  • K. Hodyr
  • W. Gieszczyk

  - RADIATION MEASUREMENTS - Year 2014

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• Validation of a virtual test environment for C2X communication under radio jamming conditions

  Publication

  • M. Tarkowski
  • M. Rzymowski
  • Ł. Kulas
  • K. Nyka
  • M. Borawski
  • P. Kwapisiewicz
  • W. Piechowski
  • G. Temme
  • S. Khan
  • D. Behnecke
  • M. Mahmod

  - Year 2020

  In this paper, we propose a novel car-2-x communication security testing methodology in the physical layer of wireless systems. The approach is dedicated to automated testing of autonomous vehicles and it is essential for such complex systems operation, especially with regard to safety and security issues. It is based on scenario-driven testing in virtual and real test environments created from collected or simulated data. The...

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• Compatible DC and small-signal MOSFET models for radio and microwave frequency simulation

  Publication

  • W. Kordalski
  • T. Stefański

  - Year 2005

  Zaprezentowano nowy model stałoprądowy tranzystora MOS i kompatybilny z nim uogólniony nie-quasi-statyczny model małosygnałowy. Model stałoprądowy został eksperymentalnie zweryfikowany dla tranzystorów MOS o długości kanału od 75 nm do kilkunastu mikrometrów, a model małosygnałowy od zera herców do 30 GHz.

• Tracking body movement for radio channel measurements in BAN with indoor positioning system

  Publication

  • J. Sadowski
  • P. Rajchowski
  • K. Cwalina

  - Year 2016

  This paper presents indoor positioning system based on inertial navigation with additional distance measurements using UWB modems and map matching to increase accuracy and eliminate position drift. Such system may be used to track position of human body during radio channel measurements for body area networks. Performance of proposed system and limitations caused by inertial navigation are briefly described.