velocity spectrum meaning in English
速度谱
速度振谱
速谱
Examples
- B ) relative velocity response spectrum ( sv ) and relative displacement response spectrum ( sd ) : the variation of velocity spectrum with depth is similar to that of acceleration spectrum . but the variation of displacement spectrum with depth is a little different to that of acceleration and velocity spectrum . that is , in strong earthquake , the variation of displacement spectrum and normalized spectrum in different depth is very small
( 2 )速度反应谱( s 、 )和位移反应谱( sd )沿深度变化的规律速度反应谱沿深度变化的特点与加速度反应谱基本相似;位移反应谱沿深度变化的特点与加速度和速度反应谱有较小差别，即强震时位移反应谱和标准位移反应谱沿深度的变化很小。 - The differences between this method and other similar methods are : ( 1 ) the fast synthetic source record algorithm based on the wave theory is adopted in prestack depth migration . ( 2 ) the plane wave source is used in migration that is consistent with the velocity analysis method . ( 3 ) by using the controlled illumination , the distortion of the plane wave source wavefield due to the lateral velocity variation is avoided therefore the error of velocity analysis is reduced and ( 4 ) the practical velocity spectrum makes the interactive migration velocity analysis feasible and convenient
与其他类似偏移速度分析方法的不同点在于： ( 1 )叠前深度偏移采用基于波动理论的快速合成震源记录算法； ( 2 )偏移方法采用平面波震源，与速度分析方法一致； ( 3 )应用控制照明技术，避免了因横向变速而导致的平面波震源波场在传播过程中的畸变，从而减小了速度分析的误差； ( 4 )实用的速度谱设计，使交互偏移速度分析可行且易于操作。