研究表明，最优低通差分滤波器是一种分析电能质量干扰信号的比较有效的工具。
It is indicated in the research results that OLPDF is an effective tool in the analysis of power quality disturbance signals.
由于谐振网络的品质因数比较低，以往常角的基波近似分析法准确性差。
Since the Q of the resonant network in often low, the analysis in the form of fundamental sinusoidal approximation is not accurate enough.
本文介绍了实时动态差分gps RTK技术在杭州湾大桥桥位地形测绘中的实施与原则，并对GPS RTK定位结果进行了精度比较与分析。
This paper introduced the implement and principle of GPS RTK in the topographic mapping of HangZhou bay bridge location, compared and analyzed the precise of GPS RTK pointing result.
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