A novel modified FFT algorithm sampled with Hanning-window is presented,which can be used for the thickness deviation diagnosis of strip and roll eccentricity compensation.

• 汉宁窗采样快速傅立叶变换比值算法,可用于带钢厚度偏差的诊断,也可用于板带材的轧辊偏心控制补偿。