The ratio of signal to noise (S/N) is greatly improved through the phase sensitivity detection.
通过相位灵敏度检测，大大提高了信噪比。
The optical modulation characteristics, differential gain (DG), differential phase (DP) and signal-to-noise ratio (S/N) are described as well in this paper.
文中论述了光调制特性、微分增益（DG）、微分相位（DP）、信噪比（S/N）等重要问题。
Stacking is one of three key technology of the seismic data processing, whose goal is to suppress random noises, enhance the data signal-to-noise ratio (S/N).
叠加是地震处理的主要技术之一，主要的目的是为了提高地震信噪比、压制随机的干扰。
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