Sinc Interpolation Function

This function performs sinc interpolation, a digital signal processing technique implemented using an engineering-optimized structure particularly suitable for FPGA-based algorithm architectures. Sinc interpolation represents an efficient DSP method primarily applied in digital image processing, audio processing, video processing, and related fields. The algorithm works by reconstructing continuous signals from discrete samples using sinc functions as interpolation kernels, effectively increasing the sampling rate of digital signals to enhance signal quality. Implementation typically involves windowed sinc filters to balance frequency response and computational complexity. Key considerations include selecting appropriate filter lengths and window functions (e.g., Hamming, Blackman) to optimize frequency domain characteristics. This technology demonstrates broad application prospects in industrial control systems, communication equipment, medical devices, and other domains where high-quality signal reconstruction is critical.