【摘要】 在工程设计中,为了分析和综合数控系统,常用Z 变换法、修正Z 变换法和双线性W 变换法。在用这些方法时,常常是已知系统开环传递函数G(S)的零、极点分布,要求求出系统的开环脉冲传递函数G(Z)及双线性W 变换传递函数G(w),从而画出伯特图来。为了方便工程设计和减少计算工作量,本文给出了当系统传递函数具有实根、复根和重根时求传递函数G(Z)和G(W)及绘制伯特图的一种通用数字仿真程序。该程序适用于不超过三重根的情况。更多还原

【Abstract】 In technical design the z-transform,the modified z-transform and the bilineaw-transform methods are often used for analyzing and synthesizing a digital controlsystem.When these methods are employed,the zero and pole distribution of theopen loop transfer function G（s） must be given and the open loop pulse transfe-function G（z） oz the bilinear w-transfer function G（w） will be obtained.In this paper for the convenience in technical design and the reduction in com（?）putational work a general digital simulation program is given to find the transferfunction G（z） and G（w） and to plot the Bode-diagram of G(jω_?),when the tra-nsfer function G（s） of the system has real roots,complex roots and multiple roots.These programs are suitable when the number of multiple roots is not more thanthree.更多还原