Aiming at the error in intense hypsography terrain area statistic, the paper puts forward an improved statistic method for intense hypsography terrain, and introduces their application fields.
针对强起伏区面积统计误差，提出一种地形强烈起伏区的面积统计误差的改进方法，并扼要说明它们的一些应用领域。
The analysis of registration error from terrain slope and the best target size.
由地形坡度引起的影象配准误差及目标区最佳尺寸分析。
To a large number of terrain data and the slow speed of terrain rendering, presenting a terrain method based on data block and ball error metric.
针对大规模地形数据庞大、地形绘制速度慢的问题，提出一种基于分块和包围球误差函数的地形绘制方法。
While case calculation using high resolution terrain data shows that the regional relative radiation error caused by terrain slope can reach up to above 10%.
而高分辨率地形资料计算实例表明，地形坡度引起的区域相对辐射误差可达到10%以上。
This paper analyzes the relationship between perpendicular baseline and terrain height sensitivity firstly, based on height error induced by uncertainty of phase.
根据测量相位不定性引起的高度误差，分析了垂直基线与地形高度灵敏度的关系，并推导了垂直基线与高度模糊数的关系式。
Aiming at the problem of large number of terrain data and low speed of terrain rendering, this paper presents a terrain rendering method based on data block and enclosing ball error metric.
针对大规模地形数据庞大、绘制速度慢的问题，提出一种基于数据分块和包围球误差函数的地形绘制方法。
The minor error of baseline length and obliquity will cause high terrain larger error.
长度和倾角的微小误差，都可能引起大幅度的地形高度误差。
And a new scheme, which terrain matching and INS error fixing are processed at some intervals according to the pre-defined matching points, is presented.
文中还提出了间歇式地形匹配与INS误差修正方案，使工程应用成为可能。
The results show that the main causes are human error by crew and environment factors resulted in loss of control and controlled-flight-into-terrain with terrible fire causing severe casualty.
结果表明：事故的主要原因是人为因素和环境因素，事故结果主要为飞机失去控制和可控飞行撞地的结果，飞机撞地后起火往往造成机组人员和乘客大量伤亡；
By analysing error resulting from the process of terrain map by digital scanning, we studied the precision problem in this process and made this process much more reliable.
从扫描数字化的基本原理及实施过程出发，分析了基于大比例尺地形图的扫描数字化的误差来源，着重讨论了影响扫描数字化数据结果精度的主要原因及采取的措施。
By analysing error resulting from the process of terrain map by digital scanning, we studied the precision problem in this process and made this process much more reliable.
从扫描数字化的基本原理及实施过程出发，分析了基于大比例尺地形图的扫描数字化的误差来源，着重讨论了影响扫描数字化数据结果精度的主要原因及采取的措施。
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