基于递推DFT算法数字滤波器的研制

Digital niter design and implementation based on DFT recursive algorithm

推导出递推DFT算法,并采用该算法实现了电力系统谐波与基波的分离,仿真和试验表明该算法具有计算量少、实现简单、滤波效果良好的优点,可用于基于交流采样的电力系统滤波和数据采集系统。

The DFT recursive algorithm is derived in this paper,and fundamental wave and harmonic wave are detached by this algorithm.Emulating and testing results show that the algorithm is simple,easy to implement and effective.The filter can be used in filtering and SCADA system in power system