利用遗传算法对ARMA(p,q)模型进行优化，减少人为因素在模型定阶过程的影响，通过构建基于遗传算法的ARMA(p,q)模型，确定ARMA模型的具体阶数，并对航空发电机的状态趋势进行分析。-ARMA (p, q) model to optimize the use of genetic algorithms to reduce the impact of human factors in the process of model order, by constructing ARMA (p, q