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一、引论不少文献中,介绍很多关于一般控制系统的数字仿真方法,这些方法也适合于对雷达伺服系统的仿真试验。其中常用时域仿真方法有各种数字积分法,结构图法,离散相似法等,还有频域仿真法,根轨迹法等等,它们各有优缺点。其中除了离散相似法外,都只适用于线性系统。由于实际系统往往都具有不同的非线性特性,因而上述方法带来了仿真模型误差。离散相似法虽然适用于非线性系统,但仿真精度有限,不能满足试验研究的要求,为了提高仿真试验的准确性,必须做到:一)数字模型准确;二)仿真方法精度高。为了解决这一问题。本文提出了一种新的仿真方法。它可以广泛应用于各种雷达伺服系统的数字仿真研究。
I. Introduction Many literatures introduce a lot of digital simulation methods about general control system. These methods are also suitable for the simulation test of radar servo system. Commonly used time-domain simulation methods include various numerical integration methods, structural graph methods, discrete similarity methods, frequency domain simulation methods, root locus methods and the like, each of which has advantages and disadvantages. Among them, except the discrete similarity method, it only applies to linear systems. Because the actual systems often have different nonlinear characteristics, the above method brings simulation model error. Although the discrete similarity method is suitable for nonlinear systems, the simulation accuracy is limited and can not meet the requirements of experimental research. In order to improve the accuracy of simulation experiments, it is necessary to do the following: a) The digital model is accurate; b) The simulation method is of high precision. In order to solve this problem. This paper presents a new method of simulation. It can be widely used in various digital simulation of radar servo system.