相对精度

PHI高光谱影像的实验结果表明，文中的校正算法可达到优于1.5m的绝对定位精度及0.7m的相对精度。

Test results using PHI hyperspectral image prove that the rectification algorithm developed in this paper can reach the absolute positioning accuracy of better than 1.5 meters and the relative accuracy of 0.7 meters .

利用本方法对2004年和2005年IGS所给电离层电子含量资料在地理框架中做了分析预报，5天内电子含量预报相对精度在90%左右。

The TEC data of IGS in 2004 and 2005 are analyzed by our method in order to predict the TEC in the geographic frame . The relative accuracy of prediction for 5 days obtained by our method is about 90 % .

新的晶体分析器无论在短期或长期的测定，对10%B2O3的测定能做到1%的相对精度。

With the new wafer analyzer , 1 % relative precision at10 % B2O3 was achieved both in short and long term measurements .

本文提出了指定相对精度的反scalingandsquaring算法来计算矩阵对数。

In this paper , we present an algorithm based on inverse scaling and squaring method for the computation of matrix logarithm .

Quartus环境以FPGA为数字电路和存储体载体，运用DDS技术虚拟实现任意信号产生，并在信号低频段仍能保持恒定很高的频率相对精度。

A virtual arbitrary waveform generator in DDS is introduced , in which FPGA is used for the digital circuits and memory carriers in Quartus , the constant high relative frequency precision can be realized in the low frequency area .

试验表明，1km罗盘支导线最弱点的中误差达3m，罗盘测树高的相对精度达5%。

Experiments demonstrate that the relative precision of tree height is 5 % , while in 1 km of compass traverse , the mean error of the worst point position is only 3 m.

预测结果显示，2001～2010年间，该林区将出现3个森林火灾高火险年，5个森林火灾重灾年，二者出现的间隔期均为2～3a，平均相对精度达98%以上；

The results showed that there will be three are three high risk fire years and five heave risk years during 2001 to 2010 . Their lagging time will be 2 to 3 years , which precisions were higher than 98 % .

实际检测结果表明，该似大地水准面模型相对精度达到了±0.025m，可代替几何水准测量，满足该地区工程建设的要求。

The results show that the relative accuracy of this engineering quasi-geoid has reached 0.025m . It can substitute direct leveling and satisfy the need of the local engineering construction .

三种反映区域自然灾害数据的相对精度检验

Relative precision inspection on three kinds of regional natural disasters databases

越靠近沿海，其相对精度越低。

The nearer to the ocean , the lower the relative precision .

卫星导航的相对精度衰减因子单调性分析

Monotonicity Analysis of Relative Dilution of Precision of Satellite Navigation

区域重力大地水准面确定的相对精度估计

Relative Accuracy Estimation for Determining Regional Gravimetric Geoid

本文的研究重点是对点云数据进行绝对精度和相对精度的分析。

The main research is to analysis the absolute accuracy and the relative accuracy of point cloud data .

起始数据误差对放样点精度及相对精度的影响

Influence of Initial Data Errors on the Accuracy and the Accuracies of the Relative Position of Alignment Points

利用色度学理论、辐射定理和火焰的辐射特性，并经过推导与分析，得到了相对精度较高的温度场计算公式，为运行人员提供了燃烧相对温度场图像。

The formula with more precise is developed on the theory of color and the effects of flame radiation .

从理论上分析了影响三倍频能量测量绝对精度和相对精度的若干因素。

Some factors that influence the absolute and relative accuracy of3 ω energy measurement are analyzed from the laser theory .

结果表明：天顶湿延迟模型的相对精度大约在20%~30%之间。

The result shows that the relative accuracy of zenith wet delay model is about 20 % ~ 30 % .

传感器可根据需要对量程进行调节，且相对精度不变，特别适于中小位移的测量。

The displacement measurement range of the sensor can be adjustable in according with requirement and its relative accuracy is not changed .

为了解决超声波颗粒监测尺寸标定过程中的非线性问题，提出了一种基于相对精度标定原则的超声波磨粒监测装置中的颗粒尺寸标定方法。

Based on the principle of relative calibration , a new method for the size calibration of ultrasonic wear debris monitoring is presented .

时间城激电对电位差的相对精度要求不高，但供电电流大，装备笨重。

The time domain IP does not require very high relative precision of potential difference , but the supply current is large and the equipment is cumbersome .

海底地形不但考虑了离散点电子海图数据，而且也将某些特征数据考虑在内，从而生成相对精度较高的海底地形。

In order to get the more accuracy benthos terrain , not only the discrete electronic chart data but also the fathom lines etc data are considered .

在粒子关联测量中，利用探测到的非稳态粒子的衰变产物，对探测器组进行能量刻度的修正，可以使探测器组的能量刻度达到一个较高的相对精度。

The accuracy of energy calibration can be improved through the analysis of detected products coming from decay of unstable particles in the measurement of particle correlations .

分别在平原和山区地形条件下，计算分析了高程异常差平差法进行似大地水准面精化的相对精度和绝对精度。

The relative accuracy and absolute accuracy in the refining of quasi-geoid using the height anomaly difference adjustment were calculated and discussed for plains and mountainous areas respectively .

本文采用数理统计方法，详细分析了HP&3808A激光测距仪近几年来积累的测量数据，求得仪器平均测距相对精度为1：70万。

In this paper , the mathematical and statistical methods are used to make the detailed analysis on the cumulative observational data in recent years by HP-3808A laser geodimeter .

相对精度分析是通过比较未经航带改正的平行航线与对飞航线点云数据精度来评价飞行质量。

The relative accuracy analysis method is to assess the flight course quality by compare the point cloud data accuracy of original parallel flight course and crossing flight course .

然后针对城市导线沿街道布设的图形特点，给出导线环相对精度的若干实用估算公式；

Then , it presents some practical assessing formulae for the relative precision of the loop traverse , according to the figure characteristics of the arrangement along the road of city traverse .

利用现代光力学方法进行汽车模型风截面面积的测量，在满足大景深和大视场的同时，整个系统的相对精度能达到±1‰的要求。

On the precondition of big field-depth and big view-field , the system precision of measuring the head-on wind section of automotive models using modern optical mechanics method reaches ± 1 ‰ .

最后采用立体标定模板对该标定算法进行了实验验证，用标定完成的立体视觉传感器对已知长度进行测量，相对精度达到了0.02%，取得了较为理想的结果。

In the end , a volume calibration template is used to calibrate a stereo vision sensor , which measures a known length . The relative precision is up to 0.02 % .

在几千米的勘探深度范围内，该方法可以使地震勘探的精度由相对精度用绝对精度来表示；使分辨率由十几米提高到2～3米；

This method can replace relative precision with absolute precision in several kilometer depth seismic exploration , it can raise the resolving power from over decade meters to 2 ~ 3 meters .

算例结果表明，影响隧道横向贯通精度的主要因素是两端洞口进洞基线方位角测量的相对精度。

The research result shows that the key factor to affect the lateral piercing accuracy for a tunnel is the relative accuracy of baseline azimuth surveying at the two entrances of the tunnel .