Equipment has long service period and high reliability requirements, equipment support personnel not only need to complete the necessary test and repair, but also have to make clear the future development trend of equipment performance and the life expectancy during life cycle. Life prognostic can achieve equipment mantenance taken in advance to ensure high logistics and readiness capability. In this paper, we research and analysis the equipment service life prediction algorithm, pretreatment method and optimization method. These algorithms are applied and validated by calculating and analysis the practical test data, which can provide basis theories and references for the weapon PHM.%武器装备服役期长,可靠性要求高,其寿命周期内装备保障人员不仅需要完成必要的测试与维修,同时需要明确装备未来性能发展趋势、寿命水平,从而实现提前采取维修措施,以保证装备长期的战备完好；文中以装备寿命预测相关项目为背景,研究分析装备寿命预测算法、预测前相应的预处理方法以及预测方法的优化算法;通过实际数据计算与分析,完成算法的应用和验证,为武器装备PHM相关应用提供方法研究基础与参考.
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