关键词: 半带滤波器, 插值滤波器, 信号处理, 数字滤波

Abstract: In order to meet the demand for data interpolation in high-speed communication systems and digital signal processing, a design method for high-speed interpolation filters based on half-band filters is proposed. The method utilizes the coefficient sparsity and symmetry of the half-band filter, and adopts a multiplexed parallel structure to significantly reduce the number of multiplication operations and computational complexity. The frequency domain characteristics of the half-band filter and its application in interpolation are described in detail, and the design steps, hardware implementation, and resource optimization methods of the filter are discussed. The experimental simulation results show that the filter design method can significantly improve the interpolation speed under the premise of guaranteeing the filtering performance, which is suitable for high-speed and real-time signal processing application scenarios.

Key words: half-band filters, interpolation filters, signal processing, digital filtering