粒子图像分割及匹配均为自行编制的子例程，基于分段非线性权重值的Pso算法，表示出两帧图像间各个像素点的相对情况，有较好的参考价值，通过虚拟阵元进行DOA估计，线性调频脉冲压缩的Matlab程序。-Particle image segmentation and matching subroutines themselves are prepared, Based on piecewise nonlinear weight value Pso algorithm, Between two image