Optimized Design of a Variable Fractional Delay Filter With Delay Error Constraints

Liu, Xiaowei; Ren, Guangliang; Zhang, Wenchao; Liang, Shuang

doi:10.1109/tcsii.2023.3245723

Optimized Design of a Variable Fractional Delay Filter With Delay Error Constraints

A novel algorithm for designing variable fractional delay (VFD) filter coefficients is proposed to improve time delay accuracy. The principle of this method is to model the coefficient design as an optimization problem with fractional delay error constraints (FDECs) and use a linear approach to d…