查询词典 observation error

The results show that the estimated root mean square of observation error for each observation type is reasonable.

结果显示估计的观测误差均方差是比较合理的。

Besides, the influence of stochastic observation error on the evaluation result is investigated using Monte Carlo method.

最后运用蒙特卡罗法构造算例，讨论了实测过程中的随机观测误差对评价结果的影响。

Because of the fatal differs between large-scale and mesoscale weather systems, such problems as relevant model of background error, representativeness of observation data and observation error structure still need to carry on deeper research.

鉴于中尺度和天气尺度天气系统之间的巨大差别，在中尺度资料三维变分同化时，背景误差相关模型的设置、观测误差结构和观测资料的代表性等方面还需要进行更加深入的研究。

Error Analysis of UGPS Error sources of UGPS include GPS observation error, attitude error, baseline network strength, sound velocity error, time measuring error.

系统的误差分析实现水下的精密定位，需要分析影响系统定位的各种因素。

The observation data during 1-31, August 2006 and the first guess from T213 numerical weather prediction system are used for analyzing the root mean square of observation error.

观测误差均方差分析使用2006年8月1-31日观测资料，国家气象中心T213L31全球中期分析预报系统的6小时预报作为背景场。

Second, the data checking and correction process, to understand the various sources of measurement error, its three main areas: equipment error (determined by the instrument itself, is an objective source of error), observation error (due to the technical level personnel a result of belonging to a subjective source of error), external influence error (subject, such as temperature, atmospheric refraction effects of external factors such as these factors are also constantly changing and difficult to control, belonging to a variable source of error).

其次，在对数据的检查和矫正的过程中，明白了各种测量误差的来源，其主要有三个方面：仪器误差（仪器本身所决定，属客观误差来源）、观测误差（由于人员的技术水平而造成，属于主观误差来源）、外界影响误差（受到如温度、大气折射等外界因素的影响而这些因素又时时处于变动中而难以控制，属于可变动误差来源）。

Theoretical calculation shows the anomaly of reservoir tidal gravity is measured at μGal level, while the measured data shows the observation error of such tidal gravity at 10-μGal level. This indicates that the data noise may well disguise real anomalies, and therefore that the lack of measured anomaly data does not necessarily equate to the lack of oil and gas reservoir underneath. The actual observed tidal gravity anomaly can reach tens of μGal. Though it is more than three times the observation error, we can not attribute it to the reservoir-induced tidal gravity anomaly.

理论计算表明，油藏潮汐重力异常在微伽量级，而实际资料表明潮汐重力的观测误差为10 μGal量级，油藏潮汐重力异常可能会被噪声淹没，所以没有观测到潮汐重力异常不等于地下没有油气；实际观测的潮汐重力异常可达数十μGal，即使超过观测误差的3倍，也不能将它直接归因于油藏产生的潮汐重力异常。

It is different from traditional concept that the concept dynamic roughness includes influence of model error, truncation error, observation error and so on.

此时的糙率与传统的概念有明显的不同，它包含了模型误差，截断误差，观测误差等各方面的综合影响。

It can be used to calculate positioning error related to baseline error and observation error. It can also be used to calculate convergent area and unstable area with given GIB network.

并以此详细推导了水面基线误差、网形对定位结果的误差分析公式和距离观测误差对定位结果的误差分析公式。

The settlement observation of bridge pier and abutment was discu ssed. The GM prediction model of the settlement observation error and t h e settlement development was established to set up system for bridge saftely use and maintenance.

阐述了桥梁墩、台沉降变形的观测，建立了桥梁墩、台沉降观测误差和沉降变形逐年发展情况的GM预测模型，为桥梁安全使用，养护管理决策提供可靠的科学依据。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。