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National Repository of Grey Literature 12 records found  previous11 - 12  jump to record: Search took 0.01 seconds. 
Systems Design of Correction Coding
 Křivánek, Vítězslav ; Němec, Karel (advisor)
Due to growing transmission speed burst-forming errors tend to occur still more frequently not exclusively in data transmission. The presented paper concentrates on the search for alternative burst error correction solutions complementing the existing methods in use. Its objective is an elaboration of a detailed analysis of the issue of convolution codes for error burst correction which can be used in individual anti-error systems and thus an achievement of better results than those attained by mass application of the existing solutions. First the methods implemented to remove or suppress burst errors are briefly characterized. This part is followed by a detailed description of the individual systematic convolution codes by means of mathematical tools which extend the set of possible evaluative criteria of anti-error systems which can be applied while assessing proposals for individual solutions. The acquired code properties are compared with convolution codes as well as with other versions of proposals for message protection against an error burst. The processed convolution codes are subject to testing by means of Matlab mathematical programme simulation in order to validate the correctness of the derived mathematical tools. This is because simulation represents the principal method applied to verify and present an already proposed security process and enables the acquisition of a better overview of the issue at hand. The feasibility of the individual anti-error systems is then confirmed by way of creating a circuit behaviour description in the VHDL language. Its high portability presents a big advantage when drafting individual systems of the actual implementation.
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Laboratory kit for experimental work with CoolRunner devices
 Gajdošík, Petr ; Kubíček, Michal (referee) ; Kolouch, Jaromír (advisor)
This bachelor´s thesis deals with the programming of the CPLD device from the CoolRunner.II family, made by Xilinx company, through the use of USB bus. This bus and its application is an integral part of many devices nowadays. These programmable devices are used very often, mainly because of their speed and flexibility. They can be used in many different applications. The main task is to design a laboratory kit containing input switches, outputs of signaling LED diods and a 7segments display. Next possibility is to connect it with a chance plug in many external inputs and outputs. The thesis contains some examples of programs in the VHDL language.
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National Repository of Grey Literature : 12 records found   previous11 - 12  jump to record:
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