Low resolution and low signal noise ratio are big obstacles in the way of increasing the accuracy and level of deep strata exploration.

深层地震反射资料分辨率、信噪比低是制约进一步提高深层勘探精度，加大深层勘探力度的重要因素。

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Improving measurement accuracy of low level signal is studied using RF attenuation, resolution bandwidth, video bandwidth, and video average.

研究了利用频谱仪射频衰减、分辨带宽、视频带宽和视频平均的方法，提高和改善低电平信号的测量精度。

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The traditional liquid level measurement under dynamic states and complicated surroundings have potential defects that are low resolution, low precision and big dead zone.

传统的液位测量方式在动态复杂环境下，都存在分辨率低、精度弱、测量盲区大等缺陷。

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