方法：采取单纯随机采样法，抽检市售的15类食品并依据相关国家标准和地方标准检验方法进行检测。

Methods: 15 categories of sampled food were randomly selected from Wenling markets, and tested with both national and local criteria on food hygiene.

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为了补偿由于惯性敏感元件高频振动整流所引起的非线性输出误差，研究一种新的补偿方法——随机采样法。

In order to compensate the nonlinear errors induced by the rectification for high frequency vibrations in the inertial measure unit (IMU), the paper presents a new random sampling method.

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