(陈后金)信号与系统8(14)

陈后金配套的PPT

回路方程为

R1i1 (t ) + x1 (t ) = f (t )

Li2 (t ) + R2i2 (t ) x1 (t ) = 0由上面四式可求出状态方程为

1 1 1 x1 (t ) = x1 (t ) x 2 (t ) + f (t ) R1C C R1CR2 1 x 2 (t ) = x1 (t ) x 2 (t ) L L系统的输出方程为

y (t ) = R2 x2 (t )