首先，为了去除测量产生的噪声和误差，引入高斯核函数为每个采样点加权；
To filter out the noise and error arising out of various physical measurement processes and limitations of the acquisition technology, a Gaussian weight is assigned to each point acquired.
由于系统方程是时变的，在测量过程中，系统噪声和观测噪声的统计特性等很难精确地估计或测定，事实上很多误差模型都不能简单的设为白噪声。
Because the system equation is changed with time, during the measurement, the statistic character of the system noise and the observation noise cannot be estimated or be determined accurately.
依据声级测量的误差分析，结合实例，对国家现行《超标环境噪声排污费征收标准》提出异议。
According to error analysis of sound level measurement and practical case some objection was raised to levy standard on Noise Exceeding Environment standard.
状态方程表示了阶比幅值的平滑变化，观测方程表示了测量误差和噪声。
Smooth order amplitude variance was expressed by using state equation, and measurement error and noise were expressed by adopting observed equation.
采用数字锁相技术从噪声中提取有效信号，以减小测量误差。
The digital lock-in technique is used to rather extract the effective signal from the noise and reduce the measurement error.
而随机噪声没有统一的规律，它包括环境噪声、测量误差、地面微震等。
Random noises have uniform rules and they comprise of circumstance noise, measurement error and ground microseism.
为了提高测量精确度，减少随机误差，对噪声峰值测量应采用统计平均方法，所以也需要一定的测量时间。
In order to increase the measuring accuracy the sample averaging method must be introduced, so that a certain time of measurement is needed.
对线加速度计辅助惯性姿态角测量的误差分析表明，测量误差由加速度计噪声、二次积分离散化、信标噪声和加速度计频率特性误差组成。
The error analysis shows that the measurement error is caused by the noise of the accelerometer, discrete double integration, noise of beacon and frequency characteristic error.
结论是：边缘探测技术具有高信噪比，很小的测量误差，较大的高精度测量范围，并对背景噪声有一定的抵抗作用。
The final conclusion is: edge technique has high signal to noise ratio, small statistical errors, large measuring range in high accuracy, and can prevent back ground noise in some way.
目前有关晶体管低频噪声测量仪器普遍存在的问题是测量误差大、时间长、所给噪声参数不完善。
Nowdays the problems commonly existing in the measurement of low frequency noise of transistors are, great errors, long time and imperfection of noise parameters.
通过对测量数据的噪声点过滤，数据精简等预处理，采用NURBS曲线拟合螺杆型线并分析了其拟合误差。
The NURBS curve is used for fitting the screw profile when cloud datas pretreatment is already done such as eliminated noise data and data reduction, the fitting error is also analyzed.
在进行惯导平台误差模型辨识的过程中，真实的输入加速度难以获得，因此不得不使用测量值来代替，这使得输入输出观测数据中均含有测量噪声。
Because the real input acceleration can not be obtained during the error model identification of the inertial navigation platform, so the measurement value is used to substitute the input data.
该算法采用协方差匹配技术，依据滤波新息，动态调整测量噪声方差，使融合系统的均方误差始终最小。
With covariance matching technique and innovation information of filtering, the noise variance is dynamically adjusted and the mean square error of the fusion system always keeps minimum.
本文提出了把航迹、航速和航向误差等效为附加的测量噪声的方法。
This paper proposes a method so that each of the navigation track error, speed error and heading error can be equivalent as an additive measurement noise.
应用三维摄像测量系统分析人体上肢运动时，由于实验噪声的影响，按一般旋转矩阵计算方法得到的数据会产生较大的误差。
Spin matrixes used in ordinary methods to analyze the motion of the human upper-limb based on 3-d camera measurement system, the results are not satisfactory due to the effects of noise.
为了提高气动参数辨识的精度，根据飞机运动方程，给出了测量中的系统偏差、尺度因子误差和随机噪声描述，并提出了一种飞行数据相容性检验的快速算法。
To get high accuracy of the identification of aerodynamic parameters, based on the motion equation of an aircraft, a fast algorithm for flight data compatibility check is presented in this paper.
在微波大衰减测量中，噪声是一项主要误差来源。
Noise is one of important errors in attenuation measurement, especially in the large attenuation measurement.
距离测量误差包含测量噪声和非视距误差两部分，其中非视距误差是位置估计的主要误差来源。
The distance measurement errors include errors of measuring noise and non-line of sight, of which NLOS error is the main source of error in location estimation.
将影响梯度测量的误差主要分为四种：系统误差、航向磁效应、几何效应、波浪噪声及传感器运动误差。
The errors in the Marine magnetic gradient measurement are divided into system noise, heading errors, geometrical effects, swell noise and sensor motion.
深入研究了灰度噪声、量化噪声对目标特征图像的影响及其误差模型，并由此建立了目标特征图像质心坐标提取误差模型。利用仿真试验分析了灰度噪声、量化噪声导致的航天器间相对状态参数测量的误差分布。
Based on the study of the influence of the quantification noise and the gray level noise on target feature image, the error model of the target feature image centroid coordinates is built.
深入研究了灰度噪声、量化噪声对目标特征图像的影响及其误差模型，并由此建立了目标特征图像质心坐标提取误差模型。利用仿真试验分析了灰度噪声、量化噪声导致的航天器间相对状态参数测量的误差分布。
Based on the study of the influence of the quantification noise and the gray level noise on target feature image, the error model of the target feature image centroid coordinates is built.
应用推荐