Random noise are minished by using method of difference and flatness .

利用差分法、平滑法减小测量结果中的随机噪声；

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Using by the method of Difference Analyze and the theory of Regression Analyze, the analyzed the spatial characteristic of vegetation change in arid land.

在差值分析和回归理论的支持下，分析了干旱区植被变化的空间特征；

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Meantime, differential signal is distilled by nonlinear tracking-differentiator instead of the method of difference, which improves the quality of differential signal.

同时用非线性跟踪-微分器代替差分法来提取微分信号，提高了微分信号的品质。

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This so-called Uplink Time Difference of Arrival or UTDOA method requires servers to be installed at each transmitter site.

FORBES: Judge Dismisses TruePosition Case -- With Invitation To Try Again

But what makes Sorger's method stand out is the difference in how it approaches the problem of scaling to the human body: the Swift scales, where other bicycles may simply get taller without increasing the wheel base.

ENGADGET: Engineering a better bicycle with DBC City Bike Design Alt

The indicators of the production of GDP are re-valued at constant prices with the double deflation method where the value added at constant prices is the difference between the value of output and the value of intermediate consumption at constant prices.

UNESCO: Belarus: Report: Part I: Descriptive Section