一种改进的减少频谱泄漏的等角度间隔采样递推算法

An improved algorithm for reducing spectrum leakage based on equal angle-interval sampling principle

提出了一种改进的减少频谱泄漏的等角度间隔采样递推算法用于谐波检测.仿真结果表明,改进后的算法检测精度高,信号变化后基波跟踪周期短,若信号频率不变基波跟踪只需1个周期,频率变化也只需2个周期.改进算法精度高、实时性好,有很好的应用前景.

Presents an improved algorithm for reducing spectrum leakage based on equal angle - interval sampling principle for harmonic measure. Simulation results show the improved algorithm not only greatly improves the accuracy but also reduces the tracking periods. If there is no frequency change, one tracking period is ok. If there is frequency change, two tracking periods are enough. This ensures the real time measurement. The improved algorithm will have great application potential for its high accuracy and real time.