通过虚拟阵元进行DOA估计，基于分段非线性权重值的Pso算法，基于SVPWM的三电平逆变的matlab仿真，这个有中文注释，看得明白，计算多重分形非趋势波动分析，现代信号处理中谱估计在matlab中的使用。- Conducted through virtual array DOA estimation, Based on piecewise nonlinear weight value Pso algorithm, Based on SVPWM three-level inverter matl