速度谱曲面的光顺处理及其作用

Surface fairing with its action on the velocity spectrum

速度谱曲面的光顺程度直接影响了速度拾取的准确性.本文借鉴曲面设计造型中曲面光顺处理方法,对速度谱曲面进行光顺处理,滤除由于其它因素所造成的速度谱曲面不顺滑的成分,以提高速度谱曲面顺滑程度,提高速度谱分辨率.相比于常规速度谱,经光顺处理过的速度谱能量团的曲面将更光滑、规则,易于识别,有利于介质叠加速度的直接拾取.

Surface smoothness of velocity spectrum impacts the accuracy of the stacking velocity picked. In this work, in light of the methods from surface fairing in surface designing and modeling, we smooth the surface of velocity spectrum to filter out the component of unsmoothed surface of velocity spectrum and to improve the smoothness of the velocity spectrum surface. In comparison arth the source spectram, the fairing surface of the velocity spectrum is more smooth and regular, helpful to pick directly the velocity of media.