This master's thesis presents the development and operation of a DVB-T signal analyzer. The
analyzer is implemented using an SDR radio receiver HackRF One in combination with a
Raspberry Pi computer. Signal analysis is performed in the open-source program GNU Radio
Companion, where a custom-built Python block was developed to analyze the MPEG-2
transport stream and display the SI and PSI tables.
The first part of the thesis presents the standards that define the field of DVB-T
technology, as understanding them is crucial for correctly setting the key parameters of the
analyzer and defining the key technical requirements that the SDR radio receiver must support.
This is followed by a presentation of the analyzer's architecture, the theory of SDR technology,
and an explanation of the requirements that led to the choice of the HackRF One radio. The
process of recording the radio spectrum and selecting the receiving antenna is also described.
In the second part of the thesis, the development of the custom Python block in the GNU
Radio Companion programming environment is presented, which performs the analysis of the
MPEG-2 transport stream. The results of the analysis are PSI and SI tables, which the analyzer
outputs into text files. PSI tables are crucial for successful demultiplexing and proper decoding
of all the programs that make up the received DVB-T multiplex.
The conclusion of the thesis explores the possibility of upgrading the analyzer, explains
its shortcomings, and presents functional upgrades that could further improve the analyzer in
the future.
The SDR receiver was chosen due to desire, to popularize and explore SDR technology,
which has proven to be an important technological advancement in the field of
telecommunications and an excellent learning tool for students of telecommunications
technologies.
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