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\specification {\picw=\hsize \cinspic ./img/zadani.jpg }
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\specification {\picw=\hsize \cinspic ./img/zadani.jpg }
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\abstractEN {
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\abstractEN {
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Due to the ubiquitous presence of interference and a need for a large angular resolution, the current radioastronomical observations are carried out using multi-antenae receiver systems. Construction of such devices places great demands upon the quality of signal processing. A source of inspiration for my diploma thesis has been my own amateur radioastronomical activity in the field of meteor observations.
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Due to the ubiquitous presence of interference and a need for a large angular resolution, the current radioastronomical observations are carried out using multi-antennas receiver systems. Construction of such devices places great demands upon the quality of signal processing. A source of inspiration for my diploma thesis has been my own amateur radioastronomical activity in the field of meteor observations.
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The thesis deals with a possible realization of a digitalization unit for a radioastronomical signal receiver. The implementation described in the thesis is optimized for a high dynamic range and good phase stability, both being the most important parameters for its application in the multi-antenae systems. Design and the instrument implementation have been created as open-source hardware solutions, so far having unique characteristics among the devices used in amateur or professional radioastronomy.
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The thesis deals with a possible realization of a digitization unit for a radioastronomical signal receiver. The implementation described in the thesis is optimized for a high dynamic range and good phase stability, both being the most important parameters for its application in the multi-antennas systems. Design and the instrument implementation have been created as open-source hardware solutions, so far having unique characteristics among the devices used in amateur or professional radioastronomy.
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I have devised and implemented a trial version and made further experiments with it. A resulting recommendations for repeated implementations of the receivers, that we are planing to use in the amateur meteor observing networks, are based on these experiences.
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I have devised and implemented a trial version and made further experiments with it. A resulting recommendations for repeated implementations of the receivers, that we are planing to use in the amateur meteor observing networks, are based on these experiences.
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}
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}
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\abstractCZ {
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\abstractCZ {
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