• Condition effect is an important source of non-sampling error in continuous surveys with matched samples.

    条件影响匹配样本连续调查特有的计量误差来源

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  • This paper studies the main techniques of measuring non-sampling error and classifies them into two classes: based on designs and based on models.

    本文研究国内外非抽样误差测度主要方法,将分为基于设计的方法基于模型的方法。

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  • These sources of error and uncertainty include variations in flare efficiency, mis-identification of flares, non-continuous sampling, and environmental effects like snow reflection.

    这种误差来源不确定性包括效率差异、燃除判断错误、不连续采样以及雪花反射那样环境影响

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  • Non integer period Sampling leads to large error in harmonic analysis by FFT.

    利用FFT变换进行谐波分析周期采样会带来较大误差

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  • 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.

    快速傅里叶变换同步采样非整数周期截断的情况存在较大误差无法获得精确间谐波参数

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  • A weighted algorithm is proposed for reducing effectively the error caused by non-synchronous sampling in active power and power factor measurement.

    提出种能有效地抑制非同步采样引起有功功率功率因数的测量误差加权算法

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  • 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理论,根据网络自身的特点分析了网络调查抽样误差来源提出了减少误差的方法

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  • 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理论,根据网络自身的特点分析了网络调查抽样误差来源提出了减少误差的方法

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