参数变化

To overcome these disadvantages, the Strong Track Filter is introduced to estimate the motor states, which can improve the estimation performance of abrupt change states and the robustness of variable parameters.

本文利用强跟踪滤波，提出了基于STF的感应电机状态估计算法，有效提高了对于突变状态的估计性能和参数变化的鲁棒性。

First, we compute the characteristic polynomial of the system. Secondly, we can use the stability criterion to decide the region of parameter to enable the system stable. Finally, we can search the

最后对两种控制器设计方法进行了Matlab仿真试验，证明了它们的有效性和理论分析的正确性，找出了参数变化对系统性能影响的规律，并且通过仿真分析比较了各自的特点和使用范围。

Conformal mapping method is introduced into the analysis to calculate the characteristic values of the transmission line, e.

在分析中引入了保角映射等数值方法，给出了有效介电常数εeff、特征阻抗Z、单位电容C等传输线指标随几何参数变化的计算公式。

The variations of the leakage constant with structure parameters were given in this study to show the special properties of this kind of antenna.

文中给出了漏波系数随天线结构参数变化的关系以显示该左手介质天线特有的性质。

This paper first demonstrates that the changes of air parameters is indicated as a curve convex to the right in the psyehrometrie chart when the air flo ws through the surface air cooler in the cooling process.

本文首先论证了空气在表冷器中冷却过程的参数变化，在I——d图上表示的是一条向右凸的曲线。

The analytic expression of a probability current is derived by using the power series expansion method and used to generate the curve characteristics of the current varying with other parameters.

采用幂级数展开的方法得到了几率流的解析式，给出几率流随外参数变化的特性曲线。

A PID-like cost function is proposed, and it can be proved that the PID algorithm is the gradient descent method as long as the cost function is selected as ours.

这种新颖的控制器算法具有自适应功能，原因是控制律中引入了被控对象的灵敏度，从而提高整个控制系统在参数变化及受到负载扰动时的鲁棒性。

Lastly, two-phase flow flied is studied under spinning (60n/s and 100n/s) condition, integral calculation of the two-phase flow is completed in the spinning SRM combustion chamber and nozzle, and the behavior and varieties of parameters of different diametric particles are studied in spinning internal flow flied thoroughly. The analysis of result and discussion are presented by comparison to two-phase flow flied of no-spinning case.

最后重点研究旋转情况下(25n/s和60n/s)固体火箭发动机两相流场，进行旋转固体火箭发动机燃烧室—喷管一体化两相流场数值模拟，分析了发动机内不同颗粒的运动及参数变化规律，并与不旋转两相流场对比进行结果分析和讨论。

Numerical results show the accuracy and efficiency of the proposed algorithm by investigating the effect of various graded parameter to temperature distribution.

计算结果显示了算法的计算精度和有效性，并分析了梯度参数变化对温度分布的影响。

The change of epithelium in epididymis was observed by histological microscopy.

观察附睾上皮的组织学改变和附睾精子参数变化。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。