误差模型

In order to solve this problem, an improved algorithm is presented in the paper. Results from model data show that the method can diminish traveltime error in near surface model with great difference in slowness and describe accurately seismic sliding along the interface of the velocity layers.

提出了一种改进的地震波走时计算的逆风差分算法，通过考虑首波和散射波的走时，能有效地减小速度值差异较大的近地表地质模型的走时计算误差，准确地描述速度界面上折射波的滑行描述，特别适用于近地表层析成像及地震勘探中的静校正问题。

This algorithm firstly simplifies the DEM data by using Morton coding and stores the simplified data with an unfull quadtree.

该算法首先利用不完全四叉树存储Morton码简化后的高程数据，然后根据视点位置和网格空间对象误差的关系建立基于不完全四叉树的LOD模型。

Compared with conventional PID controller, it can better avoid the qualitative spurious and unmodeled dynamics with the ability of reject disturbance.

结果表明基于节制闸启闭频率抑制的H控制器设计充分考虑到控制精度与模型误差抑制之间的关系，较传统PID控制具有更好的波动抑制能力。

The uncertainty caused by the errors of model and hypothesis belongs to unstatistical uncertainty.

由于模型假设与实际的误差所引起的不确定性属于非统计不确定性。

With long term research professor Lin and his fellow men develop theories of "mannikin analogy"、" tissue-equivalent"、"atom、molecule、big molecule design"、" technology of simulate enzyme"、" technology of inherit templet"," quasi-element equivalent method" and "light element substitute method".

经过多年的研究，林教授与其同仁创建了&人体模型的相似性原理&、&人体组织等效性的判别及测试方法&、组织等效材料的&原子、分子、大分子层次设计原理&。用仿生工程模拟酶技术和遗传模板技术成功研究出体内外能量传递和分布辐射、超声、微波、热力学、力学及复合等效的新型仿生材料。这些材料按照人体组织相应的基本元素组成，按照&准元素等效&和&轻元素替代法&避免金属元素的谱线干扰，在医疗照射能谱范围内（60KeV-20000KeV），组织等效性误差控制在5%以内。

Based on the hypothesis that the connecting line of two turning centers bisects the connecting line of two geometrical centers, the analysis and design equations of eccentric involutes gears transmission are established.

基于两齿轮的几何中心连线等分回转中心连线的假设，建立了偏心渐开线齿轮传动分析和设计方程，分析了模型的误差。

The model error of direction finding system is analyzed and calibrated.

对阵列测向系统的模型误差进行了分析与校正。

As this method calibrates all the model parameters in one procedure, and there is no need to separate the runoff, it can reduce the error caused by model parameter calibration due to intentionally separate runoff.

由于该方法同时优选所有模型参数，不需要对实测径流进行分割，从而可避免人工分割径流而出现的参数率定误差。

After convolving the image model with the edge detection operators of second derivative model, a plane fitting in the least squares sense is used to detect the zero crossing points as edge points.

使用二阶导数型边缘检测算子对图象模型进行卷积后，用均方误差最小的准则对卷积后的图象进行平面拟合，并求出零交点作为图象的边缘点。

The analysis of sensing theory, deducing mathematical model and the simple and multi disturbance test are performed.

分析了传感原理，推导了数学模型，表明测量误差与解调电路的频率响应有关，并进行了单频和多频扰动的实验研究，实验证明了理论分析的正确性。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失