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Multiple independent Rayleigh fading waveforms are often required for the simulation of wireless communication channels. Jakes model and its derivatives based on SoS (Sum-of-Sinusoids) provide simple simulators for Rayleigh fading, but they have shortcomings that their correlation functions are not always approach theoretical value. In this paper, the statistical properties of SoS fading model with...
Process mining has been widely applied in lots of fields, which can discover workflow models from event logs, helps to design or re-design process models, and brings convenience to workflow management system. The main function of process mining algorithms is to provide us with valuable objective information hidden in event logs, which plays a crucial important role on the implementation of new operation...
This paper is concerned with modeling the time-varying UWA channel in Stratified Ocean. The time-varying multipath characteristic of underwater channel imposes strong limitations on acoustic communication transmission. To analyze the characteristic of underwater acoustic channel, a method is proposed based on Rayleigh distribution. Eigen-rays are searched on the basis of the ray theory, that is, eigen-rays...
This paper presents a new PID controller model based on series leading correction, and its extension. By tuning the parameter(s) of the new PID controller, the controlled system's dynamic performance can be improved significantly. Not only reducing the maximum overshoot, but also shortening the setting time significantly. The results of simulations show the superiority of the new PID controller.
To overcome difficulties of adding a new model or improving an existing one in the traditional marine engine room simulator, a new simulation system framework is put forward which is based on integration of C/S and P2P modes. A control node is set in the system with the function of joining and quitting control of the simulation nodes. Control information exchange between the control node and simulating...
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