CAJ | 학술논문

多信号模型是一种简单而有效的系统建模表示方法,提出基于多信号流模型的雷达BIT进行验证方法。介绍多信号流模型的定义和表示,分析运用该模型对雷达模块（电路）的建模、相关矩阵简化、对其测试性功能实现原理进行了解析,并以某型雷达截获控制电路为例进行验证。结果表明,多信号模型能给出一个全面的测试性评定结论,对系统测试性分析具有价值。
다신호모형시일충간단이유효적계통건모표시방법,제출기우다신호류모형적뢰체BIT진행험증방법。개소다신호류모형적정의화표시,분석운용해모형대뢰체모괴（전로）적건모、상관구진간화、대기측시성공능실현원리진행료해석,병이모형뢰체절획공제전로위례진행험증。결과표명,다신호모형능급출일개전면적측시성평정결론,대계통측시성분석구유개치。
In this study,Ginkgo Biloba leaves was pretreated by using the newly steam explosion to improve the yield of extraction of flavonoids.Based on the single factor experiments,the effects of steam explosion pressure,temperature and solid-liquid ratio on Ginkgo Biloba leaves were investigated by response surface methodology.A mathematical model was established and analyzed to describe the relationships between the studied factors and the response of the yield of flavonoids.The optimum pretreatment parameters were as follows： Steam explosion pressure of 0.38 MPa,steam explosion time of 235 s,solid-liquid ratio for 1∶15.Under the optimum conditions,the yield of flavonoids was higher about 2.1 fold than that tradition extraction method.