【摘要】 本文根据Pade近似推导出一种有效的拉氏逆变换的数值方法,克服了传统拉氏逆变换中对每个具体函数都要计算其极点和留数的缺点。改进的步进算法使这种方法在精度上可与极高阶的数值积分算法相比。数值拉氏逆变换的应用使很多网络分析问题得到简化,频域分析的结果在时域分析中得到充分的利用。本文所有工作在IBM-PC机上进行了实例验证。更多还原

【Abstract】 A method for numerical Laplace transform inversion is presented, which based on padd approximation and does not require the determination of the poles and residues of the network function Its modified version, stepping algorithm, is with high accuracy and equivalent to very high-order absolutely stable integration. The great advantage of this method is that if reader has a program for frequency domain analysis of linear networks, the time domain response can be found without changes and only few additions to the program are required.更多还原