Conference Papers (KEI)
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Item Pre-detection Combining of Small Satellite Downlink's Replicas(IEEE, 2022) Al-Anbagi, Haidar Najim Abbod; Veřtát, IvoThis study contributes to the reception quality improvement of small satellites' signals. Traditionally, the data from a satellite is downloaded through single radio link to the related steerable ground station. This single communication is problematic as it is highly exposed to outages when the channel is deeply affecting the signal or when the steering engine fails. Instead, this paper proposes a terrestrial solution by combining multiple raw replicas of the same downlink received by separate multiple receiving sites. The individual stations are networked to collect multiple raw versions and send them to a virtual ground station for processing and combining. The suggested receive-diversity combining of the raw symbols is promising to improve the performance of the ground stations and reduce the probability of singular site failures. The proposed receive diversity scheme offers the replacement of the conventional expensive steerable antenna by much affordable omnidirectional antenna where the diversity gain compensates the lesser antenna gain. To achieve this diversity payoff, a simple yet efficient pre-detection combining algorithm is also developed in this article. The results show that the diversity mode, under different testing scenarios, can achieve lesser bit error rate (BER) than every other BER in the network. Furthermore, the cooperative reception scheme reduces system outages and exhibits to track more than a satellite at once.
Item Prototype of compact Microstrip lowpass filter for active phased antenna array with ultra-wide stopband using funnel shaped resonator(IEEE, 2022) Jahanbakhshi, Maryam; Hayati, Mohsen; Veřtát, IvoItem New Approach In Designing Hexagonal-Shaped Antenna Based On Area Analysis(IEEE, 2022) Siahkamari, Hesam; Jahanbakhshi, Maryam; Lotfi, SaeedehItem The speed up of vibrating hydraulic jaws by smart control of electric solenoids(IEEE, 2022) Valenta, Pavel; Skála, Jiří; Georgiev, Vjačeslav; Mašek, Bohuslav; Koucký, Václav; Hammerbauer, Jiří; Krauz, JiříItem Collaborative Network of Ground Stations with a Virtual Platform to Perform Diversity Combining(IEEE, 2022) Al-Anbagi, Haidar Najim Abbod; Veřtát, IvoItem Recursive Sine Wave Digital Oscillator with New Method Used for Amplitude Control(IEEE, 2022) Štork, Milan; Hammerbauer, JiříItem Anaerobic Threshold Approximation with Minimum Number of Blood Samples(IEEE, 2022) Štork, Milan; Novák, JaroslavItem Design and Modelling of Printed Log Periodic Dipole Array Antenna with Different Feeding Methods(IEEE, 2022) Almtrod, Abdalghfor Abdalghfar A; Kubík, ZdeněkItem Economic Evaluation of Battery Energy Storage Integration into Plant with Cyclic Load(Fakulta elektrotechnická ZČU, 2022) Vinš, Martin; Pinker, Jiří
Item Electronic Control Board for Phased Antenna Array Research and Prototyping(Fakulta elektrotechnická ZČU, 2022) Pokorný, Michal; Veřtat, Ivo; Masopust, Jiří; Pinker, JiříItem Anaerobic Threshold Approximation with Minimum Number of Blood Samples(Fakulta elektrotechnická ZČU, 2022) Štork, Milan; Novák, Jaroslav; Pinker, JiříItem Recursive Sine Wave Digital Oscillator with New Method Used for Amplitude Control(Fakulta elektrotechnická ZČU, 2022) Štork, Milan; Hammerbauer, Jiří; Pinker, JiříItem New Approach In Designing Hexagonal-Shaped Antenna Based On Area Analysis(Fakulta elektrotechnická ZČU, 2022) Siahkamari, Hesam; Jahanbakhshi, Maryam; Lotfi, Saeedeh; Pinker, JiříItem Home Blood Pressure Monitors For 21st Century(Fakulta elektrotechnická ZČU, 2022) Jílek, Jiří; Štork, Milan; Pinker, JiříItem Prototype of compact Microstrip lowpass filter for active phased antenna array with ultra-wide stopband using funnel shaped resonator(Fakulta elektrotechnická ZČU, 2022) Jahanbakhshi, Maryam; Hayati, Mohsen; Veřtát, Ivo; Pinker, JiříItem Collaborative Network of Ground Stations with a Virtual Platform to Perform Diversity Combining(Fakulta elektrotechnická ZČU, 2022) Al-Anbagi, Haidar N.; Vertat, I.; Pinker, JiříItem Different approach for anaerobic threshold approximation(IEEE, 2022) Štork, Milan; Novák, JaroslavIn this paper the 2 different approach for anaerobic threshold (AnT) determination and approximation were described. Anaerobic thresholds were calculated for athletes tested on a bicycle ergometer and treadmill ergometer where the heart rate (HR) and pulmonary ventilation parameters (VE), oxygen consumption (VO2) and carbon dioxide expenditure (VCO2) were continuously measured. The first methods for AnT calculations are based on invasive lactate (LA) measurement. For comparison, a non-invasive method based on changing the course of ventilation parameters during exercise is briefly presented. However, the main goal of the paper was the possibility of minimizing the number of blood sampling for lactate measurements from which the lactate curve and anaerobic threshold can be determined. The Matlab program was used to process the calculations.Item Design and modeling of spiral circular magnetic probe for near field measurements in CST microwave studio(IEEE, 2021) Almtrod, Abdalghfor Abdalghfar A; Kubík, ZdeněkItem Timepix3 detector network for nuclear waste monitoring(EDP Sciences, 2021) Biskup, Bartoloměj; Bergmann, Benedikt; Broulím, Pavel; Burian, Petr; Malich, Milan; Mánek, Petr; Meduna, Lukáš; Mora Sierra, Yesid; Pichotka, Martin Peter; Pušman, Lukáš; Rubovič, Peter; Slavíček, Tomáš; Smolyanskiy, Petr
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