讨论了总体地形非均匀、局部均匀地形和孤立目标杂波之间的关系。
The relations among the clutter of heterogeneous terrain, local homogeneous terrain, and isolated objects were discussed.
原有地面形态被平盘与边坡相间的梯状地形所代替，5～10年间非均匀沉降剧烈，边坡不稳；
The original topographic appearance was substituted by terraced slopes, resulting in severe uneven subsidence during 5~10 years and instability of steep slopes.
影响高原山区大地水准面起伏变化的主要原因是地形的剧烈变化，地形量和岩石密度分布的不均匀。
The main factors to influence the Geoids rising and falling of the mountainous districts are the acute change of the landform and the asymmetry of the mass of landform and the density of rocks.
针对由数字地图等以均匀网格形式给出的高程数据生成真实三维地形的仿真需求，提出了一种基于加权外推算法的地形几何模型。
For the requirements of creating 3d terrain based on the elevation data which is in the form of regular grid, a kind of modeling method based on weighted average algorithm is proposed.
其形成原因中自然因素是：地形破碎，降水分布不均匀，地表物质疏松；
In its formation causes, tattered landform, uneven precipitation and loose land surface matter are the natural factors;
提出一种新的三维空间不规则网格有限差分方法，模拟具有地形构造的非均匀各向异性介质中弹性波传播过程。
This paper presents a new 3d finite-difference (FD) method using spatially irregular grids to simulate elastic wave propagation in heterogeneous anisotropic media with topographic structures.
提出一种新的三维空间不规则网格有限差分方法，模拟具有地形构造的非均匀各向异性介质中弹性波传播过程。
This paper presents a new 3d finite-difference (FD) method using spatially irregular grids to simulate elastic wave propagation in heterogeneous anisotropic media with topographic structures.
应用推荐