数据采集系统的采样率(对AC信号)是十分重要的。

The sampling rate of a data acquisition system (for ac signals) is very important.

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针对高程数据，给出一种规则化插补的重采样方法和基于着陆区平面拟合的粗糙度与坡度提取算法。

For elevation data, a regularized interpolation for resampling and an algorithm for extracting terrain roughness and slope with landing area plane fitting are presented.

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火灾初期大部分为点状目标，在进行重采样时最好采用最近邻法以保证数据准确性。

Fires usually are spot targets and it is better to use the nearest method when resampled.

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