【摘要】 本文导出了由连续信号的拉氏变换X(s)求它的采样信号的Z变换X(z)的公式的反演公式,该公式的优点在于通过复频域的变换就可由X(z)得到X(s),而不必通过时域的中间变换.文中还举例说明了该公式的应用.更多还原

【Abstract】 An inversion formula of the formula shown in Ref. [1] and used to find the Z transform X(z) of sampled signal from the Laplace transform X(s) of a causal time-continuous signal is derived. With this inversion, it is possible to carry out inverse transformation in complex frequency domain straightforwardly in order to obtain x(s) from X(z) without the necessity of going through any intermediate transformation in time domain. Examples are given to show the application of the inversion formula.更多还原