实现用SDRAM运行nios，同时用SRAM保存摄像头数据，利用matlab写成的窄带噪声发生，AHP层次分析法计算判断矩阵的最大特征值。- Implemented with SDRAM run nios, while saving camera data SRAM, Using matlab written narrowband noise occurs, Calculate the maximum eigenvalue judgment matrix of AHP.