relative precision

Discrete Fourier Transform ( DFT) is used to realize the coherent integration, which improves the relative ambiguous frequency estimation precision of coherent pulse group. This algorithm has low computational complexity and high estimation precision for Doppler frequency rate-of-change.

针对单载频雷达脉冲信号，提出了基于相关的脉冲群间多普勒频率变化率高精度估计算法，通过离散傅立叶变换实现了相参积累，提高了相参脉冲群相对模糊频率估计精度。

TIME CHARACTER OF RELATIVE LOCATION EFFECT IN SEARCHING IMAGINED ENVIRONMENT The Precision of Modern GPS Relative Positioning

空间相对位置效应的时间特征现代GPS相对定位的精度

The visibility measurement error caused by non-blackbody target is analyzed. It is shown that the relative measurement error increases along with the increase of the visibility and the target's reflectivity. To ensure the measurement precision, the target with reflectivity low enough is required.

作者对非黑体目标引起的测量误差进行了分析，结果表明相对误差随着目标物反射率的增加和能见度的升高而增大，为了保证测量精度，需要采用反射率足够低的目标物。

This paper describes a NOTS with mercury cladding optical fiber as its temperature probe, its measure method is unique. Its absolute precision is 0. 1 ℃ at the range 20-100 ℃, and the theory relative precision can attain 0. 02%.

介绍一种以水银包层光波导作为感温探头的新型光纤温度传感器，它采用的测温方法独特新颖，在20～100℃范围的测量精度为0.1℃，理论分析的相对测量精度可达0.02%。

Further experimental verification suggested that the con-structed model have higher prediction precision, the relative deviation less than 8% for the CO conversion and C_5~+, less than 9% for methane.

进一步的实验验证表明，模型具有较高的预测精度，CO转化率和C5~+的相对误差小于8%，C1小于9%。

Chinese music theory and temperament theory both have numerical logic features, their numerical features have difference of precision and the difference is relative.

乐学与律学研究均具有数理逻辑特征，两者的数理特征在精确度上有所区别，这种差别是相对的；

The relative offset and gravure printing, flexo printing machine overprinter precision.

相不对胶印、瘪印来说, 刚印机的套印精量不不对.

In the process of finding a solution to the equation of linking five positions, the method is used to choose three equations to infer equations with relative parameters, introduce them to the other equations, and solves the equation by using limit precision of calculation.

在求解两连架杆五个位置方程式时，采用的方法是先取三个方程推导出有关参数表达式，代入另两个方程，用限制计算精度的方法求解。

Relative precision inspection on three kinds of regional natural disasters databases

三种反映区域自然灾害数据的相对精度检验

As to the IKONOS image, the human-computer interaction interpretation is most effective, the area relative precision of which can be up to97.60%.

对于IKONOS高分辨率融合影像，人机交互目视解译是一个最佳方法，森林四级类型的目视解译面积精度可达97.60%。

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.

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。

In contrast to high precision digital multimeter , the system measuring relative error is less than 1 %.

与高精度数字万用表的测量结果对比, 系统的测量不确定度小于1%.