针对测量数据的噪声问题，本文提出了一种基于频率分析的实时滤波器。
For the measurement noise problem, this paper proposes a real time filter based on frequency analysis.
通过反复的研究比较和实验，论文给出了采集系统实时滤波器设计的关键技术和核心算法，并通过仿真验证其可行性。
Through comparative study and repeated experiments, this thesis gives the key technology and core algorithm of the real-time filter, and confirms its feasibility through the simulation process.
实时、高精度的谐波检测和控制是有源滤波器的重要部分。
Real-time and accurate harmonic detection and control is the key for practical active filter implementation.
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