Low Power Line communication means using low Power line as communication media for data transmission and information. Comparing to other communication technologies the application prospect of L-PLC technology is quite widespread. The characteristic of channel is the basic of L-PLC research. It is important to research the characteristics of L-PLC channel and establish the channel
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Chaos is a deterministic random process in nonlinear dynamic system, this process is non-periodic, not converge but bounded, and is extremely sensitive to the initial value. Chaos is of class random characteristics, very accord with the communications pseudo noise modulation requirements, and because of the sensitivity of the chaos initial value, it can produce numerous
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With the rapid development of the communication technology and computer technology, the global information integration has become an inevitable trend. But in the dissemination process, information could be affected by the illegal eavesdropping and destruction, which may lead to immeasurable loss, so that the information security has become a widespread concern. But chaos system is
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Chaos, is internal random phenomenon generated by the deterministic equation,whose discovery has brought a profound impact on mathematical physical methods whichdescribed the objective world and its concepts. Cryptology includes science and technol-ogy of maintaining information security, and science and technology of revealing thecamou?age of cipher text, that is cryptography and cryptanalysis. Chaos and cryptologycombine to
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The chaotic signal is pseudo-random, and is generated by a deterministic dynamical system. Chaotic signal processing is an important branch of non-linear signal processing. It has broad applications in practical project fields such as meteorology, automatic control, seismology, biomedicine engineering, marine exploration, pattern recognition, secure communication, aerospace engineering and so on. By more and more
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In the kinds of mechanical systems, the system with piecewise-linearity always can be encountered and is a typical non-smooth dynamic system, so the analysis of its dynamics is the focus of the current research. It has very important significance for comprehending movement mechanism and analyzing the global properties by further investigating on the system with
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The key point of the study is the relationship between government and media in Georgia, Ukraine and Kyrgyzstan. Color revolution once broke out in these countries several years ago. The media has played an important role in color revolution. The great influence of media is related to these countries’ political situation, law, economy and social
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Coal mine gas is one of the five major disasters, which can result in serious accidents and take away the precious lives of workers. In order to grasp the changes in coal mine gas timely, and to take appropriate measures,gas detection will be do well. Preventing gas accidents and achieving mine production safety are the
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Coal mine gas is one of the five major disasters, which can result in serious accidents and take away the precious lives of workers. In order to grasp the changes in coal mine gas timely, and to take appropriate measures,gas detection will be do well. Preventing gas accidents and achieving mine production safety are the
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Particle swarm optimization algorithm(PSOA) is an evolutionary computation technique based on swarm intelligence optimization algorithm,which was proposed by Kennedy and Eberhart in 1995. Its main feature is the principle of simple, less parameters, easy to converge and implement. Therefore, PSOA attractes the majority of experts and scholars’attention, and gradually becomes a new hotspot once it
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