Filippenko I. Models and methods for designing systems on chips for radio frequency identification with code-division multiplexing

The object of the research is the designing process of the system on chip for the RFID system. The purpose of the dissertation research is development of models and methods of designing systems on chips for radio frequency identification with code-division channel multiplexing based on the direct sequence spread spectrum technology to decrease time and material expenditure at the design stage and to improve data collection and processing. The methods of the research are: methods of the system analysis; methods of mathematical simulation and CAD/CAM; the theory of the digital signals transfer and processing; methods of the multicriterion optimization; the probability theory and methods of cusum technique. The theoretical and practical results of the research: the developed models and methods of designing of RFID systems have allowed to increase the development efficiency of new systems on a design stage; the implemented hardware-software infrastructure has allowed to increase quality of the information collecting and processing from supervised objects; to ensure realization of the parallel mode of process of the information reading; to reduce terms of gathering of the information in the automated system; to exclude probability of a mistake due to the human factor; to ensure the high efficiency of processing of the information, allows the mistakes elimination of the personnel during the process of acceptance of the decisions. The scientific newness: for the first time is offered model of the infrastructure of RFID system with code division of channels, which is characterized by usage of reconfigurable systems on chip (SoC) and has flexible reconfigurable structure, that allows the new systems creation with increased requirements to structural secrecy and reliability of the transmitted information; for the first time is offered mathematical model of the RFID system with code division of channels which is based on the taking into consideration of the basic technical parameters of projected system, that allows to reduce schedule time, to increase quality of the project as a whole and to automate process of designing of new systems; the models of the tag and the reader of the RFID system are improved which differ by presence of reconfigurable units of signal processing, that allows to reduce of the schedule time and material cost on a designing stage of systems on chips; the model of anti-collision process of interaction of tags and reader is improved which differs by using of an optimum range of the generator of casual delays of the answer of tags and separation of the moments of the identification of labels and reading of the data and allows to optimize bandwidth of the channel and to increase quality of the information gathering and processing; have received the further development methods of designing of systems on chips for RFID systems on a basis of a multicriterion rating and optimization at that has allowed to decide a task of synthesis of system by the given criterion of quality and to reduce time of designing. Scientific theoretical and practical results of this thesis can be used for scientific and technological development work, also for the design of digital systems on a chip for RFID systems to reduce time and cost during the designing process and to improve the quality of data collection and processing.