通过虚拟阵元进行DOA估计，非归零型差分相位调制信号建模与仿真分析 ，用谱方法计算流体力学一些流动现象的整体稳定性。- Conducted through virtual array DOA estimation, NRZ type differential phase modulation signal modeling and simulation analysis, Spectral methods of computational fluid dynamics flow of some of the overall stability of the phenomenon.