随着FPGA技术的稳步提高,FPGA替代其他技术用于实现高速信号处理已经变得切实可行。针对高阶高精度半带滤波器十分消耗FPGA硬件资源的问题,本文提出了采用部分查找表分布式算法及高低位分割处理的改进结构,并通过一个6阶5位低通FIR滤波器进行原形设计,验证了所提出的方法的正确性。仿真结果表明,采用这种方法,在大大减少了FPGA硬件资源的同时,显著提高器件的运算效率。 With the steady increase in FPGA technology, the substitution of other technologies by FPGAs for high-speed signal processing has become feasible. In order to solve the problem that high-order high-precision half-band filter consumes FPGA hardware resources, this paper proposes an improved structure using partial look-up table distributed algorithm and high and low bit slicing processing, and through a 6th order 5-bit low-pass FIR filter prototype Design, verify the correctness of the proposed method. Simulation results show that this method can significantly reduce the computational efficiency of FPGA while greatly reducing FPGA hardware resources.