查询词典 nonlinearity

Maitra and Sarkar provided a recursive construction method to construct m-resilient Boolean functions of n variables with high nonlinearity and al...

Maitra和Sarkar于1999年提出了一种递归构造方法，构造出一类非线性度很高的n元m阶n-m-1次的弹性函数，但是此方法所能构造的弹性函数的数量有限。

To locate the critical failure surface of slope, and achieve the surface geometric parameters is a real challenge to engineers, especially in some complex slope geo-conditions, for the sake of its tanglesome multifactor and nonlinearity.

许多复杂的边坡稳定性分析中，边坡潜在危险滑动面的搜索是个重要而又非常复杂的非线性优化问题。

Induced precursory anomalies have 7 main features,i.e.diversity of types,the nonlinearity correlating with the change of rain and groudwater,the periodicity and seasonal feature of occurrence,hierarchical feature of variation,tussocky feature in temporal distribution,broad area in...

诱发前兆异常具有 7个主要的特征，即种类的多样性、与降水及地下水变化关系的非线性、发生的周期性和季节性、变化的层次性、时间分布的成丛性、空间分布的大区域性以及多种手段异常变化的时空关联性等。

Aimed at the problem of inability for traditional PID controller to control such a nonlinear system as scissors platform, a fuzzy PID control system was designed for eleratory platform on the basis of both the fuzzy and PID control, which could well eliminate the unfavored effect due to the nonlinearity.

针对传统PID控制对剪叉机构升降台的非线性系统无法控制的问题，利用模糊控制较好地解决非线性因素造成的不利影响，设计基于模糊控制和PID控制的FUZZY PID剪叉机构升降台控制系统。

It is concluded that the nonlinearity of the pile decreases the seismic responses of the pile, but does not affect those of the warf significantly.

这种孔隙流体运动又影响了土层的动力反应行为，加之土体上面的海水也会影响土的动力反应，所以海岸码头环境中土层的动力反应是很复杂的。

To overcome the bad effect resulting from the nonlinearity time-variability and uncertainty on autopilot system performance during the motion process of aerodynamics missile, and to further improve the flight quality of missile, the autopilot system and used control method are researched. Firstly the integrant structure of system is discussed; then baaed un introducing the traditional PID method, controllers for missile attitude motion are designed respectively using fuzzy self-turning PID method and neural network self-adaptive PID method; at last a simulation experiment is finished. By comparing the simulation results that the designed controllers have good qualities is showed, and the feasibility and validity of applying fuzzy control and neural network into automatic control of aerodynamics missile is confirmed, and the base that other nonlinear control theory can be combined with the traditional control for missile to further improve the performance of missile control system is established.

为了克服飞航导弹运动过程中的非线性、时变性和不确定性对自动驾驶仪系统性能的不良影响，进一步提高导弹的飞行质量，对自动驾驶仪系统及其采用的控制方案进行了研究；首先对系统的整体结构进行了分析，然后在介绍经典PID方案的基础上，分别采用模糊自调整PID方案和神经网络自适应PID方案设计了导弹姿态运动控制器，最后进行了仿真实验；仿真结果的对比展示了所设计控制器良好的品质，验证了将模糊控制和神经网络应用于飞航导弹自动控制中的可行性和有效性，为其它非线性控制理论与导弹传统控制相结合以进一步提高导弹控制系统的性能奠定了基础。

Position sensitive detector; nonlinearity ; calibration ; laser collimating measurement ; neural network

位置敏感探测器；非线性；标定；激光准直测量；神经网络

Since the determination of dynamic load is difficult especially for structures with a great many degrees of freedom and nonlinearity such as guyed mast and power transmission tower,few researches have focused on this problem.

动态荷载的确定是一个较难的问题，自由度多且具有非线性的桅杆、输电线塔结构的动态荷载识别更少有人涉足。

Philosophized "nonlinearity" results in semantic vagueness, and causes pointless philosophical arguments.

非线性概念的哲学化，造成了语义混乱，并引起了无谓的哲学争论。

In the light of hysteresis, creep and nonlinearity of piezoelectric actuators, two control methods are presented. One is PID feedback control with BP neural network modeling in feedforward loop. Another is Fuzzy-PI sectionalized multimodal control. They are used for highspeed and precise position control of models driven by piezoelectric actuators.

针对压电陶瓷存在迟滞、蠕变和位移非线性等不足，提出了两种压电陶瓷微位移驱动器的位置闭环控制方法：带有BP神经网络前馈模型的PID控制方法和Fuzzy—PI多模态分段控制方法，实现了压电陶瓷微位移驱动器快速、高精度的位置控制。

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。