附表A-2 常用函数的拉氏变换和z变换表 序号 拉氏变换E(s) 时间函数e(t) δ(t) Z变换E(s) 1 z z11 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 1 Ts1e1 sT(t)(tnT) n01(t) z z11 s21s3t t22Tz(z1)2 Tz(z1)2(z1)321sn1tn n!(1)nnzlim() naTa0n!azezzeaT1saeat 1(sa)2teatTzeaT(zeaT)2a s(sa)1eat eatebt (1eaT)z aT(z1)(ze)zz aTbTzezezsinT 2z2zcosT1z(zcosT) z2zcosT12ba (sa)(sb)s2 2 2 esint ss22cost at(sa)2sint zeaTsinTz22zeaTcosTe2aTz2zeaTcosTz22zeaTcosTe2aTz za sa(sa)22eatcost at/T 1 s(1/T)lna 信号,x[n] 1 2 所有 Z变换,X(z) 收敛区域 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 本文来源:https://www.wddqw.com/doc/41b5ab40a8956bec0975e34a.html