An Arbitrary Orders Dynamic Reconfigurable FIR Digital Filter with Symmetric Circuit Structure
Guang-Hao Guo, Runjiang Dou, Nanjian Wu, Liyuan Liu · 2022 IEEE 16th International Conference on Solid-State & Integrated Circuit Technology (ICSICT) · 2022
This paper proposes a dynamic reconfigurable design method for FIR digital filters with arbitrary orders. The method can quickly generate the required FIR digital filters without changing the hardware circuit by setting both of filter order and filter coefficients. It adopts multi-levels pipeline structure, which can make the filter output results every clock cycle. Furthermore, it adopts symmetrical taps to reduce multiplier resources by half. The FIR digital filter has advantages of simple circuit structure. We design and implement the specific circuit of arbitrary orders dynamic the dynamic reconfigurable FIR digital filter. The verification results and the implementation based on FPGA indicate the method and design is efficient and useful.