这是一个经过改进的pso算法,是用fortran语言编写的,因为此语言计算速度快,适合pso的应用,收敛速度明显加快,并且这是改优化后的pso程序,比标准的速度快。,This is an improved pso algorithm, are used fortran language, because this language computing speed, suitable pso applications, significantly speeding up the convergen