用数字信号增强技术可以得到足以精确定位的信号噪声比。
Achievement of a signal to noise ratio adequate for precise registration is accomplished using digital signal enhancement techniques.
为了提高晚电位分析结果的精确度，提高信号噪声比，在HOLTER记录和分析时，采用了“二级筛选”的设计方法。
In order to improve the signal noise ratio and the precision of the analysis, a "two-level sifting" is processed in recording and analyzing VLP by HOLTER.
目前涡街流量计所采用的放大、滤波、整形、计数的处理方式，在从噪声中提取流量信号方面存在较大的局限性，只能采用限制量程比、不测小流量等方法来抑制噪声。
The traditional signal processing methods that amplify, filter, rectify signal and count, which are used in vortex flowmeter now, has shortage in extracting real flow signal from noise.
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