再次，统计获得目标及杂波区域的平均极化特性，采用非线性最优化方法实现了目标增强；
Finally, the target of interesting gains its enhancement by means of a non-linear optimization scheme.
对于一般几何模型的非线性最小均方误差拟合，首先必须定义拟合误差，然后采用非线性最优化方法求解最小误差意义下的最优解。
Firstly, the error of fit must be defined for nonlinear least-square fitting of generalized geometry model. Then the nonlinear optimization algorithm can be used to obtain the optimum solution.
本文介绍把受约束非线性规划方法应用于热力设备最优化设计中进行初次试验的一些结果。
In this paper, some results of a trial applying the constrained nonlinear programming method in optimal design of thermal equipments are presented.
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