反馈

The problem of D-stable robust covariance control for the delta operator formulated linear uncertain systems based on dynamic output feedback is studied.

研究Delta算子描述的线性不确定系统基于动态输出反馈的D-稳定鲁棒协方差控制问题。

By using methods of passivity and switching control of states of the linear subsystem, both stabilization of the linear subsystem and invariance of the specified region in state space can be guaranteed simultaneously. Hence, a sufficient condition for the robust invariance switching control of this class of systems was derived.

通过基于鲁棒严格无源技术和线性子系统状态反馈的切换控制来镇定线性子系统，同时保证了指定区域的正不变性，从而得到了该类系统鲁棒不变切换控制的充分条件。

In this paper, the design problem of new nonlinear state feedback for linear polynomial system is discussed.

本文就线性多项式型系统的综合问题给出一种新的非线性状态反馈设计方法。

The decentralized state feedback controller is obtained by using the linear transformation of the state of each subsystem.

通过子系统状态的线性变换，得到分散状态反馈控制律。

The decentralized state feedback controllers are obtained by using the linear transformation of states of each subsystem.

通过子系统状态的线性变换，得到分散状态反馈控制律。

The accuracy of system parameters is important to feedforward linearization.

参数的准确性是系统反馈线性化的关键因素。

Research on robust control methods based on feedback linearization and their applications.

一研究了基于反馈线性化的鲁棒控制方法及其在鱼雷和直升机控制中的应用问题。

State variables feedback exact linearization is used to control the system.

采用状态反馈精确线性化技术对系统进行控制。

An integrated control method of predictive control and I/O feedback linearization is developed.

给出了一种预测控制与I/O反馈线性化相结合的混合控制方法。

Finally, the simulation results show that the designed nonlinear controller by the method of feedback linearization has a good performance.

仿真结果表明利用反馈线性化方法设计的非线性控制器的有效性。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。