linearized model

Based on the model of circular restricted three body problem, nominal orbit in a linearized model can be approached by prediction-correction method, and the orbital control strategy is relatively simpler and can be easily realized.

以圆型限制性三体问题作为基本模型，采用预估-校正法逼近线性化模型下的目标轨道，给出在轨运行期间的轨控策略亦是可取的，这种控制措施相对而言较简单，容易实现。

Optimal variable aim control ( OVAC) has tracking ability and adaptability, and can deduce closed solution. Thus closed control structure is available, which fits for application on line and avoids the inadaptable for serious disturbance caused by linearized model.

最优变目标控制（OVAC）具有跟踪和自适应能力，并能得到封闭解，形成闭环控制，便于在线实现，避免了基于线性化模型的控制策略难以适应大干扰情况的不足。

Applying semigroup theory of linear operators, we get the well-posed-ness of the linearized model. Then we provide the asymptotic expressions of the eigenvalues of the system operator and their corresponding eigenvectors with a detailed spectrum analysis.

采用线性算子半群理论解决了线性化模型的适定性，并在此基础上对系统算子进行谱分析，给出系统算子本征值和相应本征向量的表达式。

These R-MOSFET-C filters, implemented in a standard CMOS process, utilize the linearized model behavior of anMOS transistor operating in the triode region instead of a passive resistor.

这些滤波器用标准的CMOS工艺实现，利用工作在线性区的MOS管来替代无源电阻。