几何扩展
At first, we introduce the linearly distributed stress tensors as the source and by means of two-dimentional finite-difference scheme to produce the response of this source, then the point source response is generated by correcting Loth the wave forms and geometrical spreading for the linear response.
该方法通过引入线分布的应力作为震源,利用二维有限差分方法计算出线源响应,然后再经过波形校正和几何扩散校正得出相应的近似点源响应。
Geometrical Spreading Loss of Running Train Noise
列车运行噪声的几何发散损失
Assuming a trilinear geometrical spreading model, we obtained the attenuation function in Guangdong region.
采用三段几何衰减模型拟合, 得到了广东地区的几何衰减函数.
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