Harmonic analysis based on Blackman-Harris Self-convolution Window
This paper presents a method of harmonic analysis--Blackman-Harris self-convolution window harmonic analysis method.Self-convolution window has lower side lobe and decays faster,analyze its performance and compare it with Blackman Window,Blackman-Harris window and Hanning window,calculation formula of frequency,amplitude and initial angle of the fundamental wave and every harmonic are deduced with the phase difference correction algorithm.Blackman-Harris self-convolution window has an excellent side lobe performance,which can effectively suppress the effect of spectrum leakage,embedded systems is easy to implement with spectrum phase difference correction algorithm.Simulation results show that:for Blackman-Harris self-convolution window function,there is a good effect of suppressing spectral leakage,the accuracy of harmonic parameters analysis is better than the classical window function.
Blackman-Harris self-convolution phase difference correction harmonic
Jingwen Qu Maofa Gong Xiaoyu Wang
College of Information and Electrical Engineering, Shandong University of Science and Technology, Qingdao 266590, China
国际会议
济南
英文
977-980
2013-05-18（万方平台首次上网日期，不代表论文的发表时间）