查询词典 inverse circular function

In Chapter 4 we discuss the solvable theorem of adaptive inverse optimal control problems, and proceed with controller designs of global asymptotic stability in probability, adaptive inverse optimal stabilization in probability and output-feedback adaptive inverse optimal stabilization in probability for strict-feedback stochastic nonlinear continuous systems with additive standard Wiener noises and constant unknown parameters using It〓's differentiation rule and an adaptive backstepping algorithm. Control laws and adaptive laws can be obtained at one time by this design scheme. Many simulations have been performed to validate the properties of the proposed adaptive control scheme.

在第4章中，针对具有标准Wiener噪声扰动和未知定常参数的不确定随机非线性系统，提出并证明了自适应逆最优控制问题可解定理，构造了适当形式的四次型随机控制Lvapunov函数，基于It〓微分规则和自适应Backstepping算法，系统地设计了全局依概率渐近稳定控制器、自适应逆最优控制器、输出反馈逆最优控制器以及在设计中如何处理二阶Hessian矩阵函数的方法，这种方法可同时获得控制律和自适应律，通过实例仿真，表明该控制算法是有效性的。

Presents the design of longitudinal control for ASTOVL lift-fan aircraft, a multi-variable, strong-coupling, complicated nonlinear system to make the system nonlinear offset and decouple, and the method used for linear system in designing the system to gain expectant flying qualities and the combination of aerodynamic control surfaces with thrust vectors to delay the control surfaces getting into saturation, and the minimum N-norm generalized inverse theorem of weighted generalized inverse adopted to apportion the moments commands, which make the control surfaces gain appropriate deflection and the simulation results to verify the dynamic inverse control laws designed really make the system nonlinear offset and decouple; when one command is given, only this output will response, and others do not response; when all commands are given together, the responses will be just the linear superpose of the response of each command, therefore the operation of the pilot will be simplified greatly.

摘 要： ASTOVL升力风扇飞机是多变量、强耦合、复杂的非线性系统，采用非线性动态逆理论设计控制律以实现系统的非线性对消及解耦，然后，采用线性系统的设计方法对系统进行设计，以使系统获得期望的飞行品质。同时，考虑到ASTOVL升力风扇飞机是由气动舵面和推力矢量融合作用的，为了延缓各舵面进入饱和的时间，采用加权广义逆中的极小N-范数广义逆定理分配力矩指令，从而使各舵面达到适当的偏转角。并将所设计的控制律进行了仿真，结果验证了所设计的动态逆控制律使系统实现了非线性对消和解耦，单个指令作用时，只有该项响应，其余不受影响；所有指令作用时，其结果就等于单个指令作用时的线性叠加，这样使驾驶员的操纵大大简化而易于控制，从而大大降低了飞行事故率。

Based on the conclusion, we adopt a new method to eliminate multiples, which is to use the statistic character of error, obtain inverse wavelet's estimation, correct misshaped inverse wavelets for non-orthogonality in inverse wavelet domain by the estimation. The method mainly has four steps.

在此基础上，本文提出了在逆子波域（单道自适应相减滤波的滤波算子的集合），利用其误差的概率分布特征，对逆子波进行估计，用逆子波的估计对逆子波进行校正来消除多次波的方法。

The problems in many applied domains often can be formulated as a nonlinear inverse problem, for example, parameter identification problem, inverse scatting problem, inverse Sturm-Liouville problem and the first nonlinear Fredholm equation, etc..

许多实际应用领域常归结为非线性反问题的求解，比如说参数识别问题，反散射问题，逆Sturm-Liouville问题以及非线性第一类Fredholm方程的求解问题等。

Based on wave propagation feature, this paper analyses 3D seismic migration algorithms such as alternating direction implicit method, LU decomposition method, and inverse operator approach method. The result shows that the alternating direction implicit method is fast but causes distortion in wave field extrapolation and affects image accuracy; however LU decomposition and inverse operator approach methods are fast while holding circular symmetry of wave field, and are promising in oilfield exploration and development.

在波的传播特征分析基础上，对交替方向隐式法、LU分解法、逆算子逼近法等三维地震偏移算法进行了分析研究，结果表明，交替方向隐式法虽然快捷但是在波场外推中明显产生畸变并影响成像的准确性，而LU分解和逆算子逼近法是保持波场圆对称特征前提下的快速算法，在油田勘探开发中具有较好的应用前景。

Affine inverse function s derived from the inverse function composed with affine permutations possess good cryptographic properties.

有限域上的逆函数左右复合一个仿射置换而成的仿射逆函数具有很好的密码学性质。

This article mainly carries on reconsidering to the uniform circular motion teaching experience,proposed the uniform circular motion teaching first step is enables the student to grasp the uniform circular motion accurately the basic concept,and proposes the solution centripetal acceleration and the centripetal force concept teaching method specifically.

湖北省 鄂州 2 。湖北武汉摘要：本文主要对匀速圆周运动的教学经验进行反思，提出匀速圆周运动的教学的第一步是让学生准确掌握匀速圆周运动的基本概念，并具体提出解决向心加速度和向心力概念的教学的方法。

Carry out the performance of circular economy to evaluate a company, the article discussed the enterprise of circular economy to evaluate the characteristic of index, principle and administrative levels, gave out the structure of the system of quota of company performance assessment of circular economy and its assessment technique.

为了评价企业实施循环经济的绩效，本文探讨了循环经济的企业评价指标的特点、原则和层次，给出了循环经济的企业绩效评价指标体系的结构及其评价方法。

Article 5 The general administration for promoting circular economy under the State Council shall be responsible for organizing, coordinating and regulating national circular economy promotion works; relevant departments for environmental protection under the State Council shall be responsible for regulation works concerning circular economy according to their functions respectively.

第五条 国务院循环经济发展综合管理部门负责组织协调、监督管理全国循环经济发展工作；国务院环境保护等有关主管部门按照各自的职责负责有关循环经济的监督管理工作。

General administrations for promoting circular economy under local people's governments above county level shall be responsible for organizing, coordinating and regulating works concerning circular economy promotion within their administrative jurisdictions; relevant departments for environmental protection under local people's governments above county level shall be responsible for regulation works concerning circular economy according to their functions respectively.

县级以上地方人民政府循环经济发展综合管理部门负责组织协调、监督管理本行政区域的循环经济发展工作；县级以上地方人民政府环境保护等有关主管部门按照各自的职责负责有关循环经济的监督管理工作。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。