【摘要】 利用冲击回波信号的连续小波变换波形特点，精确提取冲击回波信号的纵波和横波波前，大大提高了冲击回波测试材料弹性模量的测量精度。更多还原

【Abstract】 Based on the characteristic of the continuous wavelet transform for the impact echo signal,the wavefronts of longitudinal waves and transversal waves in the impact echo signal can be estimated precisely,and it is improved that the precision of the dynamic elastic properties of materials evaluated through impact echo.更多还原