信号处理，故障诊断，能量法，自功率谱，互功率谱，时域、频域求解-Signal processing, fault diagnosis, energy method, since the power spectrum, cross power spectrum, time domain, frequency domain to solve

一个师兄的毕设，实现用SDRAM运行nios，同时用SRAM保存摄像头数据，基于互功率谱的时延估计。- A complete set of brothers, Implemented with SDRAM run nios, while saving camera data SRAM, Based on the time delay estimation of power spectrum.