摘要
四氧化二氮贮存研究的一个重要问题是如何通过分析历史检测数据来预测其贮存寿命。四氧化二氮在贮存过程中伴随着多种物理化学变化过程,其贮存寿命受多种因素影响。通过线性动态系统来对四氧化二氮的贮存过程进行建模,可以在不深入分析贮存中物理化学变化过程的前提下,精确得到贮存过程的动力学描述,揭示四氧化二氮在贮存过程中的变化规律,进而预测其贮存寿命,从而为四氧化二氮贮存规划提供依据。
One of the important problems with the storage of N2O4 was how to predict the storage lifetime with historical test index. The complexity lay on the fact that the storage process evolved complicated physical and chem- ical process, which all affected the storage lifetime. And the test index also had severe test error. To handle these challenges, Linear Dynamic System （LDS）is adopted. The storage process is treat as a Hidden Markov Model （HMM）, and used LDS to describe the process. Expectation-Maximization （EM） algorithm and test index are
出处
《科学技术与工程》
北大核心
2013年第4期953-957,968,共6页
Science Technology and Engineering
关键词
四氧化二氮贮存
线性动态系统
隐马尔可夫模型
EM算法
storage lifetime of N2O4 linear dynamic system hidden Markov process expectation-maximization algorithm
