完整的基于HMM的语音识别系统，实现用SDRAM运行nios，同时用SRAM保存摄像头数据，合成孔径雷达（SAR)目标成像仿真。- Complete HMM-based speech recognition system, Implemented with SDRAM run nios, while saving camera data SRAM, Synthetic Aperture Radar (SAR) imaging simulation target.