• Contemporary Decentralized Development of a Centrally Planned Metropolis: The Case of Budapest 

  Losonczy, Anna Kornélia; Orbán, Annamária; Benkő, Melinda (2022-07-29)

  This study examines the changes undergone by urban centers within Greater Budapest’s extension area, which was annexed to the capital of Hungary in 1950, and which is, with minor modifications, equivalent to the outer zone ...

• Mikrohullámú reflexiómérés hibájának csökkentése minimális érzékenységű kalibráció alkalmazásával 

  Ladvánszky, János; Hilt, Attila; Csonka, István (1993-08-09)

  Explicit kifejezést adunk a hibakorrekció utáni reflexiós tényezőnek a kalibráló elemek reflexiós tényezőire vontakozó érzékenységeire és megmutatjuk összefüggésük invarianciáját. Az érzékenységek összegének állandósága ...

• Availability-Aware E-band Wireless Extension of Fiber-Access 

  Hilt, Attila; Járó, Gábor; Varga, József (2022-04-29)

  The paper discusses availability of Gigabit/s (Gbps) fiber-optical access that are extended with E-band millimeter-wave (mmW) radio. Calculation method is shown for fixed fiber-wireless system, in which ‘fiber-like’ SLA ...

• New optomixer surpassing photodetection at microwaves 

  Járó, Gábor; Berceli, Tibor; Hilt, Attila; Zólomy, Attila (1997-09-03)

  The properties of a new optomixing method are investigated and compared to the performance of the photodetection. This new method offers significantly higher output signal level compared to the direct photodetection.

• Radio-Frequency Interference: An Overview for Access Network Planning 

  Hilt, Attila (2000-11-20)

• Eight-Octave Bandwidth Optical Receiver Using Distributed Amplification 

  Zólomy, Attila; Berceli, Tibor; Hilt, Attila; Járó, Gábor; Aitchison, Colin; Baranyi, András; Ladvánszky, János; Liang, J.Y. (1997-09-03)

  A new approach us presented utilizing low-noise distributed amplification based on a hybrid integration technology, This way eight-octave bandwidth has been achieved with a responsivity characteristics flat from 40 MHz up ...

• New Carrier Generation Approach for Fiber-Radio Systems to Overcome Chromatic Dispersion Problems 

  Hilt, Attila; Vilcot, Anne; Berceli, Tibor; Marozsák, Tamás; Cabon, Béatrice (1998-06-07)

  A new approach for the generation of millimeter-wave (MMW) carriers in fiber-radio systems is presented. A subharmonic of the carrier is transmitted to the radio nodes over the fiberoptic network. At each base station the ...

• Improved Optical-Microwave Mixing Process Utilizing High-Speed Photo-diodes 

  Berceli, Tibor; Cabon, Béatrice; Hilt, Attila; Járó, Gábor (1996-09-09)

  Mixing of lightwaves and microwaves offers new perspectives for the reception of subcarrier multiplexed (SCM) optical signals, Berceli (1). The received signal can be selected more easily and thus the receiver is significantly ...

• Throughput Estimation of K-zone Gbps Radio Links Operating in the E-band 

  Hilt, Attila (2022-04)

  Nowadays covid virus changes our work, learning and life-style. Broadband telecommunication channels are required for remote work, e-learning and video conferencing. Optical-fiber access offers the required wide bandwidths ...

• Collaboration Possibilities for Autonomous Industrial Transport Vehicles 

  Bohács, Gábor; Horváth, András Máté (2022)

  Autonomous industrial transport vehicles are already in operation in the industry, but the area is very rich in further development topics. Collaboration among these vehicles makes up a special problem. First, this paper ...

• Testing and Validation of the FRC08 Formula Student Race Car at the ZalaZONE Automotive Test Track 

  Farkas, Zsolt (2022)

  The development and adjustment process of a race car consists of countless steps that require a lot of decisions to be made. These decisions can only be effective if we have the right amount and quality of information. A ...

• Predictive Maintenance in Distributed Environments 

  Sik, Dávid; Ekler, Péter; Levendovszky, János (2022)

  In this paper we present a concept to implement predictive maintenance in distributed environments. A distributed environment can involve several problems to be solved such as the different speed and frequency of data, the ...

• Conflict Management Algorithms Development Using the Automated Framework for Autonomous Vehicles 

  Sziroczák, Dávid; Rohács, Dániel (2022)

  The fields of autonomous ground and aerial vehicles are a young, dynamically expanding field of industry. The current traffic management solutions are inadequate to support the predicted high volume of operations efficiently ...

• Control Design of an Autonomous Moving Platform for Test Tracks 

  Kocsány, László; Markovits, Gergely Tibor (2022)

  In recent years, artificial intelligence, deep learning, and computer vision systems have paved the way for the development of various self-driving vehicles. The risk of testing these vehicles is not negligible, given the ...

• Establishment of a Local GNSS Correction Service for the Localization of Autonomous Vehicles 

  Rózsa, Szabolcs; Ács, Ágnes; Turák, Bence (2022)

  Accurate localization of autonomous vehicles is a key component of the onboard control and guidance system. Global Navigation Satellite Systems (GNSS) are widely used in the transportation industry for positioning and navigation

• Point Cloud Based Road Surface Modelling and Assessment 

  Lovas, Tamás; Baranyai, Dániel; Somogyi, Árpád (2022)

  Creating digital twins of the built environment based on point clouds broadens its application area; point clouds of buildings support BIM (Building Information Modeling) while the digital twins of road surfaces support ...

• Double Lane Change Path Planning Using Reinforcement Learning with Field Tests 

  Fehér, Árpád; Aradi, Szilárd; Bécsi, Tamás (2022)

  Performing dynamic double lane-change maneuvers can be a challenge for highly automated vehicles. The algorithm must meet safety requirements while keeping the vehicle stable and controllable. The problem of path planning ...

• Routing Algorithms for Wireless Sensor Networks in Smart Cities 

  Pásztor, Dániel; Ekler, Péter; Levendovszky, János (2022)

  Wireless Sensor Networks (WSNs) are one of the most important parts of the advancements in smart city planning. The sensors provide valuable data about various metrics

• Test Automation – From Virtual Scenario Creation to Real-world Testing 

  Horváth, Áron; Tettamanti, Tamás (2022)

  As advanced driver assistance systems (ADAS) are continuously upgrading, the testing standards, descriptions are evolving as well. The border disappears more and more between simulation and real-world testing. For more ...

• Development of a GNSS Based High Accuracy Measurement System to Support Vehicle Dynamics Testing 

  Fehér, Árpád; Kardos, Gábor; Szabó, Ádám; Aradi, Szilárd (2022)

  The article presents the development of a low-budget positioning device that aims to provide an alternative in self-driving vehicle development research that could replace costly, commercially available devices. In addition ...

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