Simulation test shows that better applicability is presented by fitting the shock response signal curve in frequency domain, and the allround optimization ability of GA is adaptable in fitting the signal under this form.

• 仿真试验表明，冲击信号在频域内的拟合具有较强的适用性，遗传算法的全局优化能力适合于该组合形式下的冲击信号拟合。