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Algorithms for analysis and processing of RFID signals in FPGA
Harvánek, Michal ; Kováč, Michal (referee) ; Derbek, Vojtěch (advisor)
The result of this thesis is the architecture design for a software-defined radio, which is used to analyze the signal emitted by RFID tags in real time. The aim of this analysis is to measure the frequency characteristics of the RFID tag. The main means for achieving the objective of optimizing signal processing algorithms and reduce the time needed to control the hardware compared to the classical concept of SW radio USRP. It is described how to obtain and display digitally sampled signals using a graphical programming language LabVIEW and subsequent processing of these data in MATLAB. Further described is the skeleton of the proposed solution.
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Comparsion Of VP9 And H265 Encoding Standards
Fendrich, Vítězslav
This paper deals with a comparison of the latest VP9 and H.265 video compression standards by objective and subjective metrics. For this purpose, four short video sequences in Ultra High Definition (UHD) resolution and with various features are used. Quality of the compressed video sequences is evaluated by well-known objective video quality metrics and results are verified by subjective tests. Results revealed different efficiency of VP9 and H.265 encoders for various video contents.
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On The Performance Of Objective Video
Quality Metrics For Uhd Videos
Kufa, Jan
This paper deals with the performance evaluation of different objective metrics, used for the assessment of Ultra HD (UHD) video quality. Video sequences are compressed by HEVC video encoder. Objective scores are compared to each other and verified by scores from subjective tests. Such a comparison is completed by a simple correlation analysis. Differences between the objective scores obtained from the metrics implemented in the HEVC encoder and independent tool are explored in the second part of this paper. The PSNR metric is considered in this case.
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Softwarové rádio pro emulaci protokolů v RFID
Prachař, Petr ; Fuchs, Michal (referee) ; Derbek, Vojtěch (advisor)
This diploma thesis focuses on the design and implementation of an emulator of RFID protocols in a software defined radio. The designed emulator operates in the UHF band (860 MHz – 960 MHz). The main goal of this design is a very fast measurement of power characteristic of tag. The proposed solution is based on implementing the transmitter controls directly into the SDR. Thanks to this solution a reduction of delay between measurements occur compared to the conventional concept, when the transmitter parameters are controlled by the hosted PC. In this thesis, suitable platform based on research is chosen for implementation and also a concept of design is proposed and described herein, which is based on implementation of time critical algorithms directlyinto the software defined radio’s FPGA. The proposed solution was implemented into selected platforms and its functionality was experimentally verified.
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Algorithms for analysis and processing of RFID signals in FPGA
Harvánek, Michal ; Kováč, Michal (referee) ; Derbek, Vojtěch (advisor)
The result of this thesis is the architecture design for a software-defined radio, which is used to analyze the signal emitted by RFID tags in real time. The aim of this analysis is to measure the frequency characteristics of the RFID tag. The main means for achieving the objective of optimizing signal processing algorithms and reduce the time needed to control the hardware compared to the classical concept of SW radio USRP. It is described how to obtain and display digitally sampled signals using a graphical programming language LabVIEW and subsequent processing of these data in MATLAB. Further described is the skeleton of the proposed solution.
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