非线性系统

In this strategy, the unknown nonlinear functions are approximated by the fuzzy tree model to obtain the prototype controller; the linear parameters in the fuzzy tree model are adjusted online to improve the performance of the controller in realizing the tracking control to a bounded set point input.

该方法用模糊树模型逼近非线性系统中的未知非线性函数，得到初始的控制器，然后在线调节模糊树模型中的线性参数，改善控制器的性能，实现对有界参考输入信号的跟踪控制。

Therefore, a control problem of distributed parameter systems is simplified to a control problem of a linear system.

再次，证明了管式反应器具有可控性，应用最优线性二次型调节器方法对该系统进行控制，将分布参数系统这一特殊的、复杂的系统的控制问题简化为一般线性系统的控制问题，同时，提出了一种将分布参数系统这种非线性系统的控制问题转化为一般线性控制理论进行控制的方法。

The robustness of this model is discussed by using the S-system model. And the influences of cell growth rate on the biosynthesis of tryptophan, stability and dynamic behavior of the trp operon are investigated. A steady-state optimization model is established. It maximizes the accumulative term accounting for both consumption and secretion. The nonlinear optimization problem is approximately transformed to a linear optimization problem.

本文对表达阻遏蛋白的基因和表达合成色氨酸关键酶的基因之间相互作用进行了研究，通过模型考察了比生长速率对色氨酸生物合成和系统稳定性的影响，对色氨酸合成过程所涉及到的mRNA、酶等的动态行为进行了理论预测和分析，通过S-系统方程将非线性系统转化为线性系统，研究了系统的鲁棒性，并对色氨酸生产进行了优化。

Aiming at the variety of modals of nonlinear systems,we proposed a general parameter estimation method based on Genetic Algorithms,which can be used in most kinds of nonlinear system modal.

文摘：针对非线性系统模型的多样性，提出适用于多种非线性模型的基于遗传算法的参数估计方法，并以多种非线性模型为例作了仿真研究。

Consequently the NN adaptive unit is added into the control loop according to the NN on-line approximate property. Lastly the chapter combines the proposed shortest path-planning method and the adaptive tracking method in order to stabilize the NWMR about a posture through the shortest path. Many simulations are carried out on MATLAB and the simulation results are very feasible and reasonable. Chapter 5 proposes a new localization method for the WMR running on inclined planes based on fusion of clinometric and an odometric data by Kalman filter.

本文首先求得了在斜面上运行的NWMR动力学系统的状态方程；接着选择了适当形式的系统输出方程，采用非线性系统解耦方法对该系统实现了输入—输出线性化，并应用线性系统方法进行镇定；然后提出了基于人工神经网在线逼进NWMR动力学特性的自适应跟踪控制方法；最后将本文最短距离路径规划方法与跟踪控制方法相结合实现了NWMR系统状态镇定，并通过仿真实验证明了该方法的有效性。

However, almost all of the adaptive control strategies suffer the problems, such as, depending on the model of the controlled plant and the unmodelled dynamics.

但是对于非线性系统来讲，虽然已经有很多的文章发表，但都是针对一些特殊的非线性系统给出的。

Considering the in-matching uncertainties,we developed an explicit back-stepping design algorithm and applied to the design of high-order sliding mode controller under in-matching conditions.

此外还建立了基于非线性系统相对度的学习控制以及基于遗传算法的模糊控制等算法；并采用非线性微分几何控制等思想，给出了鲁棒与自适应控制器设计方法；最后将有关算法具体应用于移动机器人系统，仿真和实时控制实验结果证明了有效性。

Backlash and friction are the non-linearities arising in almost all the gear driving systems.

齿隙和摩擦是齿轮传动系统中制约运动控制精度不可避免的非线性现象，常规的PID控制难以达到较好的控制品质，变结构控制是解决非线性系统控制问题的一种有效方法。

There are a large number of nonlinear systems in practice, so the study of nonlinear systems and prediction metho...

在实际工程中由于存在着大量的非线性系统，因此研究非线性系统的建模预报方法有很重要的意义。

Multi-rod inverted pendulums are typical multi-variable nonlinear systems, that their movement control is very difficult.

变论域自适应模糊控制器是处理非线性系统的有效工具之一。多级倒立摆为多变量的非线性系统，它的运动控制十分困难。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。