Article

Article title APPLICATION OF LABVIEW VIRTUAL DEVICES IN EDUCATIONAL PROCESS FOR SCRAMBLING OF DIGITAL DATA FLOW
Authors V.T. Кornienko
Section SECTION III. RADIO EQUIPMENT AND DEVICES
Month, Year 11, 2013 @en
Index UDC 681.3.016
DOI
Abstract The design of LabVIEW’s virtual devices of digital scrambler is considered. The purpose of this abstract is the representation of a laboratory practical work on the basis of technology of virtual devices LabVIEW for performance of a digital data flow scrambling. The versions of scrambler systems with generators of pseudo-casual bit sequences which are not isolated and isolated from the communication channel are analyzed. The applications of a digital flow scrambling given in systems of conditional access of a digital video broadcasting and in systems of video registration are considered by transfer of a video of high clearness with use of the digital consecutive interface HD-SDI. The structure scrambler-descrambler of the interface SDI is given and for it as an example are considered the front and diagram panel of the LabVIEW’s virtual device. As a result of the virtual devices researches which are carrying out digital scrambling of the text messages, speech signals, jpeg-images, and also library modules for scrambling realization by different ways were created. As a result of use of new information technologies in engineering education has allowed to realize a laboratory practical work for research of digital scrambler construction principles.

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Keywords Digital scrambler; LabVIEW; virtual device; pseudorandom numbers generators; conditional access system.
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