However, in respect of a vibration acceleration signal, the signal to noise ratio (SNR) is often so small that the periodic impulse component is submersed in its intense background noises.

通常检测的机械振动加速度信号，由于信噪比太低，即使存在周期性的冲击分量也往往被淹没在强的背景噪声之中。

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The phenomena of atmosphere disorderly current can be described using random process theory, and its effect on the aircraft can be regard as that the aircraft acceleration contains random component.

大气紊流现象可用随机过程的理论和方法来描述，其对飞行器的影响反映为飞行器含随机加速度分量。

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A portable vehicle braking test meter is introduced, which appies the technology of intelligent data processing and whose detect component is silicon capacitate acceleration sensor.

介绍一种采用硅微电容式加速度传感器作为检测部件，应用智能化数据处理技术制成的便携式汽车制动性能测试仪。

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