(t),而f(t),而f(t),而f(t),而f(t)(t)=f(-t),,,脉冲宽度增加,,脉冲宽度增加,,脉冲宽度不变,,脉冲宽度不变,(k)=sin(13k+π6),===1/(jω)-jωt0CKe--,(t)=e-tε(t),f2(t)=ε(t),则f1(t)*f2(t)(1-e-t)ε(t)(1-e-t)C.(1-e-t)ε(t)D.(1-e-t)(2t)=δ(t)(2t)=(t)(2t)=2δ(t)(t)=(2t),,可以得到f4-2t)(-2t)(-2t)(-2t)(-2t)(s)与激励信号F(s)(s)=s+2s2+1,=1,p2=-=j,p2=-,2=,2=-(t)的象函数为F(s)=1s+a,Re[s]>-a,则f(0+)(k)的单边z变换为F(z),若有整数m>0,则f(k+m)-mF(z)+k=-m-1f(k)z-k-mB..z-mF(z)-k=-m-1f(k)z-k-mC..zmF(z)+k=0m-1f(k)zm-kD..zmF(z)-k=0-1f(k)z-k+(z)=2(z+1)3z-1,其幅频响应为17
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