This paper studies the main techniques of measuring non-sampling error and classifies them into two classes: based on designs and based on models.
本文研究了国内外非抽样误差测度的主要方法,将其分为两类:基于设计的方法和基于模型的方法。
Focus in data quality assessment is non-sampling errors and variance, in addition to sampling errors.
在数据质量评估中,我们除对抽样误差进行检查外,重点是对非抽样误差和偏差的检查。
These sources of error and uncertainty include variations in flare efficiency, mis-identification of flares, non-continuous sampling, and environmental effects like snow reflection.
这种误差来源和不确定性包括燃除效率差异、燃除的判断错误、不连续的采样、以及像雪花反射那样的环境影响。
Spectrum analysis for vortex signal processing was discussed on the basis of simulating and analyzing the effect of sampling in non complete periods on spectrum arithmetic.
在仿真分析非整周期采样对谱分析法影响的基础上,对基于谱分析的实际涡街流量信号处理方法进行了有益地探讨。
A snowball sampling non-probability sample was used.
样本的取样方式采取 非机率型之滚雪球抽样法。
A new spectral interpolated compensation analysis method of periodic signals to compensate the spectral leakage caused by non-coherent sampling process is presented.
针对周期信号实际的非同步采样,提出一种频谱插值校正的分析法。
With theory of error analyzing and characteristics of Internet, this article analyzes the non - sampling errors of Internet surveys and comes up with some steps to reduce them.
本文结合调查误差分析的理论,根据网络自身的特点,分析了网络调查的非抽样误差的来源,并提出了减少误差的方法。
The fast Fourier transform (FFT) will bring on higher error under nonsynchronous sampling and truncated non-integral period, thus more accurate interharmonic parameter values cannot be obtained.
快速傅里叶变换在非同步采样和非整数周期截断的情况下存在较大误差,无法获得较精确的间谐波参数值。
Method: Using simple random sampling survey and non-structured interviews.
方法:简单随机抽样问卷调查和非结构式访谈。
There are two key elements in this system, a non-parametric sampling method and a flexible sketch model.
在系统中有两个关键技术,即非参数化采样方法和灵活的线条画模板。
Aiming at the tracker failure problem induced by target pose changes during IR 3-d target tracking, a multimodal method based on non-uniform sampling was presented.
针对红外三维目标跟踪过程中目标姿态变化导致跟踪器失效的问题,提出了一种基于非均匀采样的多模型方法。
In this paper, a new particle filter based on sequential importance sampling (SIS) is proposed for the on-line estimation problem of non-Gauss nonlinear systems.
针对非线性、非高斯系统状态的在线估计问题,本文提出一种新的基于序贯重要性抽样的粒子滤波算法。
Aiming at the issues, the paper presents two methods, the multi-channel non-gapped sampling technique on-line and recursive FFT algorithm.
针对上述问题,本文提出了两种方法:在线多通道无缝采样分析技术和递推fft算法。
A new method, the sampling interval stat. analysis method, was set up to analyze the non-uniformly sampling signal of the wide-sense stationary random processes.
提出了一种通用性强、适用于广义平稳随机过程非均匀采样信号谱分析的新方法——采样间隔统计分析法。
Aiming at the design demand and structure character of complex surface tools, a high precision non-touching laser scanning system based on point sampling was studied and developed.
针对复杂型面刀具的设计要求和结构特点,研究开发了一种基于点采集的高精度非接触式激光扫描测量系统。
A non-fixed point sampling method is designed to avoid switching noise interference produced when the switch is on or off.
通过软件,设计了一种不固定点采样方法,从而避免了开关通断时的开关噪声产生干扰。
We give the approximation formulas of the variance of the sample ratio estimator for a population mean and its asymptotically non-biased estimator in multi-stage sampling.
讨论多阶段抽样比率估计及其样本量选择的问题,给出了比率估计抽样均方误差的近似公式及其渐近无偏估计的公式。
The article adopts a unique technology of "overflow sampling", which integrates with the technology of non-contact fluorescence spectrum and realizes on-line detection of oil-in-water.
采用独特的“溢流式采样”技术结合非接触式荧光光谱技术来实现水中油的在线检测,样品无需萃取、分离等预处理。
A weighted algorithm is proposed for reducing effectively the error caused by non-synchronous sampling in active power and power factor measurement.
提出了一种能有效地抑制由非同步采样引起的有功功率及功率因数的测量误差的加权算法。
A new non-iterative algorithm with time-domain weighting is described for reconstructing fast, step-like, or impulsive signals that have been measured with a sampling oscilloscope.
提出了一种基于时域加权的新的非叠代优化算法,用于重构经过采样示波器测量的阶跃信号、脉冲信号等。
Based on the studies of sampling planning and surface reconstruction, the reverse engineering system with non-contact measurement is developed.
在曲面数字化规划和曲面重构研究的基础上,开发了基于非接触测量的逆向工程系统。
In the course of non-synchronization sampling, signal period measurement is an important step in digital measurement and analysis of periodic signal.
在非同步采样过程中,信号周期的测量是周期信号数字化测量和分析的重要环节。
The method starts with the theoretically minimum frequency and searches for the minimum valid sampling frequency using variable step sizes subject to three non-aliasing constraints.
该方法从理论上可能的最小采样频率出发,根据采样后频谱不发生混叠的3种约束条件来确定可变的频率步长,搜索可用的最小频率。
The results showed that the minimum sampling areas of riparian plant community were smaller than those of the non-riparian community.
结果表明,河岸带植物群落的最小面积均小于远离河岸带的森林群落的最小面积。
Methods The survey of prevalence of dental caries in group aged 12 and 15 years in Anhui province was conducted using the non-proportional, stratified, cluster sampling method.
方法对安徽省四县市的12岁及15岁儿童的龋病发病情况进行抽样调查,采用分层、不等比、多阶段整群抽样的方法。
Non integer period Sampling leads to large error in harmonic analysis by FFT.
利用FFT变换进行谐波分析,非整周期采样会带来较大的误差。
Non integer period Sampling leads to large error in harmonic analysis by FFT.
利用FFT变换进行谐波分析,非整周期采样会带来较大的误差。
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