部分实现了追踪测速迭代松弛算法，语音信号的采集与处理，数字信号处理课设，实现用SDRAM运行nios，同时用SRAM保存摄像头数据。- Partially achieved tracking speed iterative relaxation algorithm, Acquisition and Processing of the speech signal, digital signal processing class-based, Implemented with SDRAM run n