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Telemetrický archiv družic / Satellite Telemetry ArchiveVorálek, Jan January 2020 (has links)
This thesis deals with a design of telemetry archive of PSAT, PSAT-2 and BRICSat sattelites. This telemetry data need to be extracted from SDR IQ records. The thesis contains a Doppler effect theory and description of structure of telemetry data. Then it presents a design of a program for Doppler effect correction, demodulation and decoding of these records and saving the data to telemetry archive. Thesis also deals with analysis of decoded data.
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Využití umělé inteligence ve vibrodiagnostice / Utilization of artificial intelligence in vibrodiagnosticsDočekalová, Petra January 2021 (has links)
The diploma thesis deals with machine learning, expert systems, fuzzy logic, genetic algorithms, neural networks and chaos theory, which fall into the category of artificial intelligence. The aim of this work is to describe and implement three different classification methods, according to which the data set will be processed. The GNU Octave software environment was chosen for the data application for licensing reasons. Further evaluate the success of data classification, including visualization. Three different classification methods are used for comparison, so that we can compare the processed data with each other.
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Embedded systém pro sběr dat / Embedded system for date collectionVarga, Kamil January 2010 (has links)
This master's thesis is describing problems of embedded systems and their development. Furthermore, the operating system GNU/Linux and it's cross-compiling is described. Hardware problems are analyzed too. Concrete solution is system which is able to boot from the USB disc and it is based on OpenWrt distribution running on Edimax BR-6104KP router. The whole solution is described the way which can lead to any general embedded system.
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Programy pro výpočet nejistoty měření metodou Monte Carlo / Programs for calculating measurement uncertainty using Monte Carlo methodNovotný, Marek January 2015 (has links)
The thesis deals with establishing uncertainties of indirect measurements. It focuses primarily on random number generators in software enabling the calculation of mea-surement uncertainties using Monte Carlo. Then it focuses on the uncertainty calculati-on indirect measurement as the Monte Carlo method and the classical numerical met-hod. The practical part deals with the verification of randomness generators numbers contained in various softwares. It also deals with the determination of uncertainties indi-rect current measurements by both above-mentioned methods and then comparing and evaluating the values achieved.
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Kdevelop und glade - die Programme-BauerBecher, Mike 21 March 2000 (has links)
Werkzeuge für Entwickler
Eine Vielzahl von kleinen Helfern erleichtert den Programmierern die Arbeit. Neben make, configure und kommandozeilenorientierte Compiler treten mächtige Entwicklungswerkzeuge, mit denen sich in Windeseile Oberflächen erstellen lassen.
In diesem Vortrag werden der allgemeine Aufbau eines Software-Projektes unter Unix erläutert und die Leistungsfähigkeit der Entwicklungs-Tools am praktischen Beispiel vorgeführt.
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Antena indoor de dupla polarização para recepção de TV digitalSantos, Guilherme Boscolo dos 30 January 2018 (has links)
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Previous issue date: 2018-01-30 / With the establishment of digital television technology, improvements have emerged com-
pared to analogue, such as bringing users better quality picture and video. This transition
of the analogue/digital system is already a reality in Brazil, so that organs linked to the
Brazilian government are performing the process of switch-off the analogue signal. This
switch-off aims to release the electromagnetic spectrum in the UHF band to allow the
expansion of mobile broadband. Due to this operation in adjacent bands, there is a pos-
sibility that the LTE signal interferes with digital TV. Studies presented by researchers
report that antennas designed with ”smart” characteristics can reduce interference from
unwanted signals. When designed with dual polarization, such antennas enable the wireless
link to become more robust due to differences polarization existing between the transmitter
and the receiver of the current communications systems. This essay presents a new pro-
posal of dual-polarized antenna, whose operating is destined to the radio frequency range
of the digital television after the switch-off, so that it can be used in the current digital te-
levision standard as in the next-generation of digital broadcasting. The proposed antenna
was designed with a full wave electromagnetic field simulator. A prototype was simulated
and built and experimental results showed that the proposed antenna could cover a band
of 384 MHz in the UHF band and 40 MHz in the high VHF band as well as serving as
a filter for the LTE band. Tests were performed using software defined radio and showed
their reception quality. / Com o estabelecimento da tecnologia da televisão digital, melhorias surgiram comparadas
com à analógica, como levar aos usuários uma melhor qualidade de imagem e vídeo.
Essa transição do sistema analógico/digital já é uma realidade no Brasil, de modo que
órgãos ligados ao governo brasileiro já estão realizando o processo de desligamento do sinal
analógico. Esse desligamento que tem por objetivo liberar o espectro eletromagnético na
faixa de UHF para permitir a expansão da banda larga móvel. Devido a esta operação em
faixas adjacentes, existe a possibilidade do sinal LTE interferir na TV digital. Estudos
apresentados por pesquisadores relatam que antenas projetadas com características de
“inteligentes” podem reduzir interferências vindas de sinais indesejáveis. Quando projetadas
com dupla polarização, tais antenas ainda possibilitam que o enlace sem fio se torne
mais robusto frente às diferenças de polarização existentes entre o transmissor e o receptor
dos sistemas de comunicações atuais. Esta pesquisa apresenta uma nova proposta de antena
com dupla polarização, cuja faixa de operação é destinada a faixa de radiofrequência
da televisão digital após o desligamento do sinal analógico, de forma a ser utilizada no
atual sistema de televisão como em sua próxima geração. A antena proposta foi projetada
com simulador de campo eletromagnético de onda completa. Um protótipo foi simulado
e construído e os resultados experimentais demonstraram que a antena proposta pode
cobrir uma banda de 384 MHz na faixa do UHF e 40 MHz na de VHF alto além de servir
como filtro para a faixa do LTE. Testes foram realizados utilizando rádio definidos por
software e mostraram sua qualidade de recepção.
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Kdevelop und glade - die Programme-BauerBecher, Mike 21 March 2000 (has links)
Werkzeuge für Entwickler
Eine Vielzahl von kleinen Helfern erleichtert den Programmierern die Arbeit. Neben make, configure und kommandozeilenorientierte Compiler treten mächtige Entwicklungswerkzeuge, mit denen sich in Windeseile Oberflächen erstellen lassen.
In diesem Vortrag werden der allgemeine Aufbau eines Software-Projektes unter Unix erläutert und die Leistungsfähigkeit der Entwicklungs-Tools am praktischen Beispiel vorgeführt.
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Characterization of mycobacteria SPP. and antimycobacterial activities of plant derived compounds from Anacardiaceae familyKayoka-Kabongo, Prudence Ngalula 11 1900 (has links)
The treatment of tuberculosis (TB) is currently a challenge due to multi- and extensively drug resistant strains of Mycobacterium tuberculosis. Mycobacterium bovis and M. tuberculosis cause clinically indistinguishable tuberculosis in humans. Both M. bovis and M. tuberculosis have been isolated from humans and animals. Plant species contain antimicrobial compounds that may lead to new anti-TB drugs. To conduct in vitro antimycobacterial assays, it is important to include current clinical isolates as new strains of bacteria might be circulating under the ongoing climate change environment. The overall goal and objectives of this study were to isolate and characterize mycobacteria species from South Africa, to test some selected plant species of the Anacardiaceae family for antimycobacterial activity using some of the newly isolated and reference strains of mycobacteria followed by cytotoxicity evaluation of the most active plant species, and finally the isolation and characterization of at least one compound from the most active and least toxic plant. This study led to the discovery of a new isolate of Mycobacterium Avium Complex species from black wildebeest. Other non-tuberculous mycobacteria and M. bovis isolates were identified from other animal species. Five out of 15 plant species screened showed good activity against Mycobacterium species. Five antimycobacterial compounds were isolated from Searsia undulata, the most active plant species. Two out of the five compounds were identified, and one compound appears to be novel, but both compounds have been isolated for the first time from Searsia undulata. An incidental finding was the potential anticancer property of extracts of Searsia undulata. Recommended future activities include isolation and identification of more active compounds from Searsia undulata which were visible in bioautography analysis, as well as synergy evaluation of antimycobacterial activities of the different compounds with current anti-tubercular drugs. / Environmental Sciences / Ph. D. (Environmental Science)
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