The iteration process is replaced by the PSO based on the gradient descent of FCM, which makes the algorithm have a strong global searching capacity and avoids the local minimum problems of FCM.

• 新算法用PSO算法代替了FCM算法的基于梯度下降的迭代过程，使算法具有很强的全局搜索能力，很大程度上避免了FCM算法易陷入局部极小的缺陷；