1) gradual approximation
渐次逼近法
1.
Methods The error resulted from the Gauss-Newton method was analyzed,and optimum estimate by gradual approximation is obtained.
方法对常用的高斯牛顿法的误差余项进行解析,再以计算机渐次逼近法穷举计算获取较优估计。
2.
Methods:The error resulted by the Gauss-Newton method is analyzed,and optimum estimate by gradual approximation is obtained.
方法:对常用的高斯牛顿法的误差余项进行解析,再以计算机渐次逼近法穷举计算获取较优估计。
2) progressive approximation
渐近近似法，渐次逼近法
3) lubrication approximation
渐近逼近法
4) successive approximation method
逐次逼近法
1.
In this paper, we study the decreasing types of the output of oil field opened by pouring water and the successive approximation method of its solution in mathematics and seepage flowing mechanics.
从数学和渗流力学概念对注水开发油田产量递减类型和判别求解方法进行了研究，提出产量递减类型应为指数递减和双曲线递减两种类型；双曲线递减的递减指数ｎ的变化范围应为０＜ｎ＜∞；递减类型判别和递减参数求解方法可以根据最小二乘法原理，采用数学逐次逼近法直接求解产量随时间递减的关系式。
2.
The equivalent stop and P~∞、W~∞ successive approximation methods used in the design of zooming lens are described.
介绍在变焦距镜头设计中采用的两种方法:等效光阑法和P~∞,W~∞逐次逼近法。
3.
The solution to the Goursat problem of the equations is obtained by means of the classical characteristic method and the successive approximation method.
本文通过经典的特征线法和逐次逼近法方法求解两个自变量的一般线性双曲型方程组的Goursat问题,得到了其经典解的存在唯一性,并进一步讨论了其解对边界条件的连续依赖性。
5) successive approximation approach
逐次逼近法
1.
A successive approximation approach designing optimal controllers is developed for a class of nonlinear discrete-time systems.
研究了非线性离散系统最优控制问题,提出一种逐次逼近方法;首先将系统的最优控制问题转化为非线性两点边值问题族,然后通过构造线性两点边值问题族,将非线性两点边值问题转化为非奇次线性两点边值问题族;得到的最优控制律由精确控制项和非线性补偿项两部分组成,精确控制项可以通过求解R iccati方程求出其精确解,非线性补偿项由逐次逼近法求解一族线性伴随向量方程的解序列求得;仿真结果证明了逐次逼近方法的有效性。
2.
A successive approximation approach is proposed to solve the FFOC.
为研究含外界确定扰动的线性离散时滞系统的前馈-反馈最优控制(FFOC)问题,提出了设计FFOC的逐次逼近法。
3.
Then, by using the successive approximation approach,the optimal control problem is transformed into a sequence of linear two- point-boundary-value problems.
然后利用逐次逼近法将最优控制问题转化为求解一族无时滞的线性两点边值序列问题。
6) multiapproching method
多次逼近法
补充资料：渐次
〈书〉渐渐：雨声～停息 。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条