用于计算机实时控制和保护的一种综合滤波算法

A SYNTHESIZED FILTERING ALGORITHM FOR USE IN MICROPROCESSOR BASED CONTROL & PROTECTION SYSTEM

提出了一种综合滤波算法设计原理，用这种设计原理，可以滤除用户任选的谐波分量，得到无数具有相应滤波功能的算法，得出待求物理量的实部、虚部或幅值、相位角，而且数字滤波器是该算法设计的中间结果。此外，国内外一些著名算法，如傅里叶分析法、沃尔希函数法、有限脉冲响应法等都可由该算法推出。

A Synthesized filtering algorithm design principle is proposed in this paper. The arbitary hamonics component selected by user can be filtered out by use of this design principle, and many algorithms with relative filtering functions can be reasoned out. Besides, the real parts and imaginary parts or the magnitude and phase angle of sampled signals can be worked out. The digital filtering is the intermediate result of this algorithm design. In addition, some well known algorithms such as Fourier Analysis Approach, Walsh Function Algorithm, Finite Impulse Response Approach, etc. all can be derived by use of this algorithm.