数值不稳定性长期困扰着声反演方法的应用。避免该问题的方法之一是进行冲激响应提取的预处理 ,由冲激响应反演实验材料的各层反射系数序列 ,重建特性阻抗剖面。该文采用不同反卷积的方法提取冲激响应 ,反演阻抗剖面 ,并就精度及运算时间进行详细比较 ,反演结果与实测及手册数值相当吻合 The numerical instability has long plagued the application of the acoustic inversion method. One of the ways to avoid this problem is to carry out the pretreatment of impulse response extraction. The impulse response is used to invert the reflection coefficient sequence of the experimental materials and reconstruct the characteristic impedance profile. In this paper, different methods of deconvolution are used to extract the impulse response, the impedance profile is inverted, and the accuracy and operation time are compared in detail. The inversion results are in good agreement with the measured and manual values