论文部分内容阅读
透镜优化运算缓慢有种种因素,如性能指标不合适,不存在唯一的解,虚的局部极小值,变矢量缩放不当,找不到最佳阻尼系数以及参数变化率得不到均衡等。其中,参数变化率均衡的重要性一直没有得到足够的认识。透镜优化过程中,将透镜缩放到适当的尺寸,基本上可使参数变化率得到均衡。为了得到最佳结果,在每一次迭代时,阻尼系数的大小也应该优化。如果做到了这两点,则变矢量的缩放一般是无关紧要的。为了说明参数变化率均衡化的重要性,本文对一个透镜的优化进行了分析。
There are many factors that slow the optimization of lens operation, such as improper performance index, there is no unique solution, virtual local minimum, variable vector scaling is not appropriate, can not find the best damping coefficient and the parameter change rate is not balanced. Among them, the importance of balanced rate of change of parameters has not been sufficiently recognized. During lens optimization, the lens is scaled to the proper size to basically equalize the rate of change of the parameters. For best results, the size of the damping factor should be optimized at each iteration. If you do both, the scaling of the variable vector is generally irrelevant. In order to illustrate the importance of equalizing the rate of change of parameters, this paper analyzes the optimization of a lens.