本文基于最优化理论，利用模拟电荷法对一个小型的交叉场天线（CFA）进行了场的数值分析，得到CFA周围的电场、磁场及玻印廷矢量的分布。
In this paper, we introduce the basic theory and the design of CFA, and analyze the field of CFA by CSM on the basis of method of optimization.
然后应用有限元法对气膜流场进行了有效的数值模拟计算及优化设计分析。
Then the application of finite element method has been carried on effective numerical value analog computation and the design analysing to the gas membrane flow field has been optimized.
该法先将实因式分解问题转化为数值优化问题，再用基于混合杂交与间歇变异的演化算法求解该优化问题。
The proposed method transfers the real factorization problem into a numeric optimization problem, which is solved by an evolutionary algorithm based on hybrid crossovers and intermittent mutation.
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