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用数字计算机对一个连续系统进行仿真,前两章的方法实质上是按一定的步长,采用迭代方法进行数值积分求解一阶微分方程组。这种古典的数值积分法计算精度较高,但是计算速度很慢,如加大步长会产生所谓计算不稳定的问题。而现代控制理论中对连续系统采用离散化的方法,能提高仿真的速度,虽然计算精度不及数值积分法高,但对于工程设计来
Using a digital computer to simulate a continuous system, the methods in the first two chapters essentially use iterative methods to solve first-order differential equations by numerical integration in a certain step. This classical numerical integration method has high calculation accuracy, but the calculation speed is very slow. If the step size is increased, the so-called problem of calculation instability will occur. The modern control theory of the continuous system using discretization method can improve the simulation speed, although the accuracy of numerical integration than numerical high, but for engineering design