这是一个关于PSO算法介绍的PDF文档，文档里面阐述了PSO的原理，以及改进的PSO，包含有相关的程序，可以根据自己的实际情况修改目标函数，从而满足自己的寻优要求。-This is a PSO algorithm describes the PDF document, the document which describes the principle of the PSO, and improved PSO, contains the relevant procedures, the objective function can be modified according to their actual situation, to meet their own optimization requirements.