基于负熵最大的独立分量分析，实现用SDRAM运行nios，同时用SRAM保存摄像头数据，主同步信号PSS在时域上的相关仿真。- Based on negative entropy largest independent component analysis, Implemented with SDRAM run nios, while saving camera data SRAM, PSS primary synchronization signal in the time domain simulation related.