Free space optical communication system has quick architecture with its equipment, high capacity, high security and many other characteristics much better than optical fiber communication systems that it becomes an international research focus. Horizontal link laser optical communication system uses laser propagating through the atmosphere to communicate, its communication performance is influenced largely by the
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As the high-speed railway’s information bearing platform, the railway digital mobile communication system GSM-R has been developed rapidly, and is becoming mature. To ensure traffic safety, and further to meet the passenger’s demand for communications services, high-speed railway has a higher demand on the GSM-R system’s reliability, availability, maintainability and safety. In engineering practice, all
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The explosive growth in wireless communications and the development of deep submicronCMOS technology have driven people to research and produce wireless transceivers at low-cost, low-power and more-standards. Voltage controlled oscillator is an important component of wirelesstransceivers, its phase noise, power consumption and tuning gain have great effect on the performanceof the whole system. At the
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In Computer Game, Computer Go is the most challenging one. The goal of Computer Go is to simulate multiple possible move sequence from any given board to the end of the game. The most optimized move for the given board could be calculated by the results of the simulations. An accurate evaluation for a board
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Maintenance of avionics plays an important role in the aviation field, the service quality of an airline company, to some extent, depends on equipments repairing and aero plane parts delivery in time. Therefore, requests of an airline company on airlines maintenance services providers are such high as avionics manufacturers are generally required to make sure
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Research about acquiring the information about network nodes position has become one of the critical technology in Wireless Sensor Networks(WSNs). With expanding the scope of sensor networks application, it is changing from static networks to dynamic networks about the sensor networks. Currently, localization technology about Mobile Sensor Networks(MSNs)has become the focus of concern. Mobility makes
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With the multiple applications of stochastic optimization theory, the diversification of the stochastic programming model and the complexity of the model solution, the stochastic theory and its applications are in need of a method to solve the model. In this paper a hybrid algorithm for solving Stochastic Chance-Constrained Programming Model (SCCP) is proposed and applied
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Wireless sensor networks, which integrate the three technologies of sensor, micro-electronics and network, is a whole new technology of obtaining and processing information. And it has been applied in the fields of military, disaster overcoming, environment monitoring, medical care and space discovering. The data is meaningless for most application without knowing the sensor’s position. Due
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Localization of mobile nodes is one of the hot issues in wireless sensor networks. It is to get the position information of mobile unknown nodes by using information of some anchor nodes and some special mechanisms. There are still lots of shortcomings in this technology such as great impacted by circumstances, low localization accuracy, huge
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Wireless sensor networks, which integrate the three technologies of sensor, micro-electronics and network, is a whole new technology of obtaining and processing information. And it has been applied in the fields of military, disaster overcoming, environment monitoring, medical care and space discovering. The data is meaningless for most application without knowing the sensor’s position. Due
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