提升技术现已成为采样控制系统分析和设计的主要工具.系统提升后成为一离散系统,其H∞范数与原采样系统的L2诱导范数是等价的,故称为H∞离散化.提升计算包括矩阵的指数和积分运算,一般是很复杂的.本文给出了利用MATLAB的提升算法,算法简单可靠 同时还给出了求取等价系统H∞范数γ值的二分法并配有算例.-Technological upgrading sampling control system has become a major tool for analysis and design. Upgrade the system into a discrete system, L2 H ∞ norm of the original sampling system induced norm are equivalent, so called H ∞ discrete. enhance the computing including matrix exponential and integral operation is generally very complicated this paper to enhance the use of MATLAB algorithm is simple and reliable　while obtaining equivalent system also gives the H ∞ norm γ value dichotomy and with examples.