基于改进余弦窗的加窗插值FFT谐波分析
李志刚,汪涛,何怡刚,何威,苏圆圆

Harmonic Analysis Based on an Enhanced Cosine-Window Interpolation FFT Algorithm
Zhigang Li,Tao Wang,Yigang He,Wei He,Yuanyuan Su
表1 不同窗函数旁瓣特性
Tab.1 Sidelobe characteristics of different window function
Hanning
Hamming
Blackman
改进余弦
旁瓣电平峰值/dB -31 -42 -58 -62
旁瓣衰减速率/(dB/oct) 18 6 18 18