1 引言随着小型机和微处理机的迅速发展和普及,开始广泛地采用数字控制。虽然本文主题是数字控制系统噪声问题,但其研究范围甚广。为此本文以目前应用较广的带有观测器的最优调节器问题为典型例子,着重讨论噪声和误差评价的问题。本文是以第一线工程技术人员为对象来叙述数字控制应用于实际系统的噪声问题。 1 Introduction With the rapid development and popularity of minicomputers and microprocessors, began to widely use digital control. Although the subject of this paper is the noise problem of digital control systems, its research scope is very wide. Therefore, in this paper, the current widely used optimal regulator with observer as a typical example, focusing on noise and error evaluation issues. This article is based on the first-line engineering and technical personnel to describe the numerical control applied to the actual system of noise.