分析了现有的一些改进算法所提出的评价种群过早收敛程度的指标,讨论了它们的不足;提出了一个概念清楚、运算量小的新指标,并利用该指标给出一种新的交叉概率、变异概率自适应调整策略.仿真实例表明,该方法能及时反映种群在进化过程中的过早收敛程度,不仅能加快计算速度,而且还能增强算法的全局收敛性 Some existing improved algorithms are proposed to evaluate the premature convergence rate of the species and their deficiencies are discussed. A new index with a clear concept and a small amount of computation is proposed, and a new crossover Probability and mutation probability adaptive adjustment strategy.The simulation results show that this method can reflect the premature convergence of the population in the evolutionary process in time and can not only speed up the calculation but also enhance the global convergence of the algorithm