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A particle swarm optimization (PSO) algorithm is used to synthesis the pattern of the focal-plane array fed parabolic reflector antenna for deep-space exploration. Physical optics is used to compute the far field pattern of the antenna excited by the individual array elements of focal-plane array. Compared with the conventional conjugate field matching(More)
This paper proposes an effective smart on-line over-voltage identification system based on a new layered recognition structure. The over-voltage is a main and great threat for the safety and stability of electric system. It's very helpful to analyze and identify over-voltage for improving power system insulation coordination. Through analysis of filed(More)
Hospital Information Systems (HIS) based on relational database show more and more shortcomings, such as low response speed, high maintenance charge etc. The post-relational database Cache, using multidimensional array and bitmap index techniques, shows faster response speed, lower hardware costs and routine maintenance than relational databases. In this(More)
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