如何由传递函数求脉冲响应函数？？
本人有一组振动台的传递函数数据，想用ERA进行分析，现在想把传递函数转成脉冲响应函数作为输入，请问一下大家该怎么做呢？传递函数的格式如下，我的理解是第一列是实部，第二列是虚部吧
1.64897211e+000 -3.21495601e-001
1.52890942e+000 3.70039064e-002
9.12842523e-001 -9.32499369e-002
1.53060703e+000 1.47305389e-001
1.14135615e+000 3.55642711e-002
1.44769718e+000 1.85095081e-001
1.05654453e+000 -9.02486283e-002
1.50543645e+000 2.54558008e-001
1.16724919e+000 -4.79973263e-002
1.43687004e+000 2.40408661e-001
1.22824962e+000 -6.81569632e-002
1.45896215e+000 2.34978426e-001
1.36581867e+000 -2.05139739e-002
1.53093330e+000 2.35539715e-001
1.33081365e+000 3.45083973e-002
1.71768375e+000 2.39352933e-001
1.50456774e+000 4.52246266e-002
1.88172970e+000 2.00851831e-001
1.61191943e+000 -2.08217999e-001
2.29537833e+000 2.57044626e-001
2.02860850e+000 -1.28683607e-001
2.59759878e+000 1.46407381e-001
2.16434772e+000 -3.50189443e-001
3.32629679e+000 3.07102703e-001
3.06880670e+000 -3.56429737e-001
4.29521428e+000 4.31564342e-001
4.24854036e+000 -7.38273344e-001
6.25394204e+000 9.30696612e-001
用逆FFT,去前40%的实部
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