Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"DVB-S2"”.
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Simulace přenosu DVB-S2
… byl druhý standard satelitní digitální televize, DVB-S2. Je sepsán princip digitální televize a první standard DVB-S. Dále je popsán samotný vznik a charakteristika standardu DVB-S2, nové použité techniky, architektura a jednotlivé bloky jsou detailněji vysvětleny. Součástí práce je také vytvořený …
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Field-programmable gate-array (FPGA) implementation of low-density parity-check (LDPC) decoder in digital video broadcasting - second generation satellite (DVB-S2)
… focuses on one of these standards, namely the DVB-S2 standard that was ratified in 2005. In this thesis, the design and architecture of a FPGA implementation of an LDPC decoder for the DVB-S2 standard are presented. The decoder architecture is an improvement over others that are published in …
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Doppler channel emulation of high-bandwidth signals
… to the input signal was created and tested using DVB-S2 satellite modems. Testing not only verified the functionality of the emulator but also showed that DVB-S2 modems are unequipped to handle the continuous spectral frequency shifts due to the Doppler effect. The emulator framework has …
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Optimization of a Coded-Modulation System with Shaped Constellation
… communications, such as the system used by the DVB-S2 standard.;The system implementation requires that a subset of the bits at the output of the LDPC encoder are passed through a nonlinear shaping encoder whose output bits are more likely to be a zero than a one. The constellation is …
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Mobility Enhancement for Digital Video Broadcast Network Via Satellite
… the digital video broadcasting via satellite (DVB-S) is the cornerstone technology that enables the reliable transmission of signals for a variety of users and use-cases. Over time, the technology standard has evolved and at present, the extension of its second-generation (DVB-S2X) is the order …