最优逼近 meaning in Chinese
best approximation
optimal approximation
Examples
- The optimal approximation for the pattern formed with fresnel zone plate antenna
菲涅尔区板天线赋形波束的最优逼近 - Secondly , as for degree reduction of interval rational bezier curves , two methods are given : pseudo linear programming method ( plpm ) and pseudo optimal approximation method ( poam )
接下来对区间有理bezier曲线，给出两种降阶逼近算法：拟线性规划法( plpm )和拟最优逼近法( poam ) 。 - The mrafc scheme employs a reference model to provide closed - loop performance feedback for generating or modifying a fuzzy controller ' s knowledge base . the adaptive compensation term of optimal approximation error is adopted . by theoretical analysis , the closed - loop fuzzy control system is proved to be globally stable , with tracking error converging to zero
该方案利用参考模型作为闭环系统的反馈信号来产生、调节模糊控制器的规则库，并通过引入最优逼近误差的自适应补偿项来消除建模误差的影响，不但能保证闭环系统稳定，而且可使跟踪误差收敛到零。 - Based on the representation of interval rational bezier curves and surfaces and by a serial of mathematical transformation , the degree reductions of them are converted to those of polynomials with upper bounds , then several algorithms are presented , with linear programming and optimal approximation methods . by relaxation of some constrained conditions , approximation effects of some of them are further improved
根据区间有理bezier曲线、曲面的特点，通过一系列数学变换，将其降阶问题转化为多项式的保上界降阶逼近，再应用线性规划和最优逼近方法求解，给出几种逼近算法，并探讨通过约束不等式的松弛，进一步改进逼近效果。 - Firstly , based on backstepping and the supervisory control strategy , a robust adaptive fuzzy controller is designed for a class of nonlinear systems . the first type fuzzy logic system is used to approximate the unknown part of the process . the adaptive compensation term of the optimal approximation error is adopted
本文首先针对一类不确定非线性系统，基于backstepping方法，利用监督控制，引入最优逼近误差的自适应补偿项，并利用型模糊逻辑系统逼近系统的未知部分，提出了一种鲁棒自适应模糊控制器设计方案，运用李亚普诺夫第二方法，先证明了闭环模糊控制系统全状态有界，再证明了跟踪误差收敛到零。