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提出用参数辨识确定推进剂中钾、钠杂质含量以及后燃对喷焰微波衰减影响程度的方法。用辨识的参数预估喷焰微波衰减值与实验所得结果吻合，证明了用辨识技术研究喷焰的微波衰减特性的方法是可行的。
The parameter identification is used to determine the content of potassium and sodium impurities in the propellant and the influence of afterburning on the attenuation of flame microwave. Using the identified parameters to predict the attenuation value of the flame in the microwave, the experimental results are in good agreement. It is proved that it is feasible to use the identification technology to study the microwave attenuation characteristics of the flame.