本文分析了两路交错并联双管反激变流器的工作模式，采用开关平均法建立了电流断续模式（DCM）下的变流器小信号模型。
The operation modes of the interleaved double-transistor flyback converter have been analyzed. The DCM small signal AC model using the averaged switch method has been built up.
同时采用小扰动法推导了俯仰通道和滚动通道的简化模型，为空气动力和姿控发动机推力复合控制系统进行初步设计提供了依据。
What′s more, according to the method of little disturbance, the simplified model of pitching and rolling plane is derived, so preliminarily combined control system can be designed.
从无人机的数学模型出发，在特征点作小扰动线性化处理，采用特征值配置法对线性化对象设计线性控制器。
UAV mathematics model is linearized by little disturbance method in equilibrium operating points, then linear controllers are design by applying eigenvalue configuration method to the linear models.
以弹性小挠度理论，采用能量法建立了较简便实用的轧后带材失稳判别模型。
The more practical and simple distinguishing model, ofthe rolled strip's stabilization is set up with energy method that depends on small-deflection elastic theory.
在单机无穷大系统中，运用小扰动分析法推导出了PSVC的一阶惯性模型。
In a single generator infinite system, the one order inertia model of PSVC is derived with the small disturbance method.
然后，用回归分析法建立起小构造复杂程度与影响地质因素之间的关系模型。
Second, the relational model between the complicated degree of small structure and geological influence factors is built by regression analysis.
传统的研究方法—模型试验法和经验公式法分别具有成本高、速度慢和适用范围小，数据不可靠等缺点。
The traditional research methods — model testing method and the empirical formula method, have the demerit of cost high, and speed slow, applicable range small and data unreliable.
而且本文通过极大似然法估计小波系数概率模型中的三个参数，使算法达到自适应。
Furthermore, through the maximum likelihood used for evaluating three parameters of wavelet coefficients' probability model, the adaptive algorithm is derived in the article.
相对于有限元法计算量小，模型建立简便。
Compared with finite element method, it needs fewer amounts of calculation and simple and convenient FEA model.
结合体素法无干涉性、偏移法计算量小的优点，提出一种改进的STL模型镂空算法。
An improved algorithm of hollowing STL model is presented which takes advantages of voxel method and offsetting method.
为了准确区分传感器突变信号产生的原因，提出了基于数学模型的小波频带分析法。
In order to accurately distinguish the origins bringing about abrupt changes in sensor output, a method is presented for wavelet frequency analysis based on mathematical model.
采用状态空间平均法建立了全桥逆变式弧焊电源主回路的平均状态方程，经过线性化处理推导出频域小信号模型。
The paper introduces the dynamic characteristic and the structure of arc welding power, and gives a method of designing arc welding power which using DSP chip as a controller.
采用小参数展开法和哑铃型模型法计算双星的引力辐射，并导出熟知的四极引力辐射功率表达式，数值计算所得的结果与天文观测的两级相自洽，且比其它的计算方法简便。
The method of small parameter and setting up model of dumbbells are used to calculate the gravitational radiation of Double Satellite, and the expression of quadrupole radiation power is obtained.
方法：LPS刺激模拟小胶质细胞的炎症活化，自由落体打击法建立脊髓创伤大鼠模型。
Methods:LPS was used to induce the activation of microglias, while weight drop technique was done to induce rat spinal cord trauma.
理论模型试算与实际应用结果表明，应用边界元法反演三维密度界面误差小、效果好。
The results of the theoretical model calculation and practical application have showed the little error and good effect to inverse 3-D density interface.
在电路平均法基础上对占空比限制加以改进，并考虑寄生参数的影响，推导出状态方程，建立其小信号模型。
On the base of classic state-space averaging, this paper modifies and considers the parasitic effects of circuit elements which lead to equation of the state, so the small-signal model is established.
本文对确定小尺寸模型机翼自振型的砂粒加速度法进行了技术小结。
The experimental technique of the acceleration method of using grains of sand as accelerometers is presented. The method is particularly suited for measuring mode shapes of small wing models.
而且通过极大似然法估计小波系数概率模型中的三个参数，使算法达到自适应性。
Furthermore, by evaluating three parameters of wavelet coefficients "probability model using maximum likelihood method, self adaptively of the algorithm is achieved."
而且通过极大似然法估计小波系数概率模型中的三个参数，使算法达到自适应性。
Furthermore, by evaluating three parameters of wavelet coefficients "probability model using maximum likelihood method, self adaptively of the algorithm is achieved."
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