查询词典 adaptive

This paper researches the principal and normal structure of adaptive interference chancellor, discussing the LMS adaptive filter algorithm and it's anamorphosis algorithm that is used in adaptive interference chancellor.

本文研究了自适应干扰对消的原理和一般结构，讨论了用于自适应干扰对消的LMS自适应滤波算法及其变形算法。

Based on X-filtered LMS algorithm and -filtered LMS algorithm adaptive inverse control, we use a new variable step size LMS algorithm. Adding little computation, variable step size LMS algorithm can result in fast convergence speed and low residual error simultaneously. The adaptive feedback control can counteract the beginning error of the system. The adaptive disturbance canceler can best erase noises and disturbances.

在原来的X-滤波LMS算法自适应逆控制和-滤波LMS算法自适应逆控制方法的基础上，引入了新的变步长LMS算法，在计算量增加不多的前提下，能同时获得较快的收敛速度和较小的稳态误差；引入自适应的反馈补偿控制克服了被控系统的直流零频漂移，使控制系统在初开始工作阶段快速收敛；还引入自适应扰动消除器，它能最大限度的消除扰动。

Based on the principle of advance, adaptive, reliability, high efficiency and flexibility, the general configuration strategy and the key technology has been deeply analyzed and optimized with the systematic and community in general and adaptive and contraposition in detail. The harmonic in both respects has been realized technically and the contradiction between adaptive and community solved. With the synthetic developing tool based on the database, the CAPP system called synthetic development CAPP which is of the properties of synthetic, modular redeveloped and integrated has been developed.

本论文以提高系统的先进性和实用性以及高效，灵活为基本原则，对CAPP的总体构成策略及其关键技术进行了深入地分析和优化，宏观上充分体现系统性和通用性，微观上切实体现针对性和适应性，技术上实现二者的协调统一，较好地处理了适应性与通用性这对既相互关联、又相互制约的矛盾；采用基于数据库的综合开发工具模式，研究并开发了综合式、模块化、具有二次开发和一定集成功能的CAPP系统——基于数据库的典型零件CAPP综合开发系统。

The coordinate transformation and numerical integration was executed on the discretized tetrahedral elements based on which the 3-D MT vector-finite element method was implemented. A whole computation framework for 3-D vector-finite element method with unstructured mesh was given. Based on this some typical models were tested which has demonstrated that our algorithm could distinctively avoid problems caused by the fake solution and both the accuracy and efficiency were enhanced which made our algorithm has a bright future for further application.3. According to theory of Sobolev vector space and the discretization of Helmholtz space, the error estimate which was suitable for 3-D MT vector-finite element modeling was deduced by which the procedure of adaptive technique was guaranteed.4. Based on the fully unstructured tetrahedralization and optical strategy, the 3-D magnetotelluric h-adaptive vector-finite element method was presented through combining the error estimate. With this work, the accuracy and creditableness for 3-D MT complicatedly modeling was guaranteed.5. The 3-D magnetotelluric h-adaptive vector-finite element algorithm with unstructured mesh was implemented.

针对非结构化的四面体单元，采用坐标变换和数值积分方法，实现了MT三维矢量有限单元分析，建立起基于非结构化网格的三维MT矢量有限元计算流程，并对典型模型和国际标准电磁模型进行了数值模拟，结果对比和分析表明，基于非结构化网格的三维MT矢量有限元不仅消除了节点型有限元的伪解，而且具有很高的计算精度和速度，有广阔的应用前景。3、根据Sobolev函数的向量空间和Hemlholtz空间的分解，推导出基于残差的三维大地电磁矢量有限元后验误差估计公式，为三维大地电磁自适应矢量有限元数值模拟的实现奠定了基础。4、在完全非结构化四面体单元剖分及优化基础上，结合三维大地电磁矢量有限元后验误差估计公式，提出了基于非结构化网格的三维大地电磁h-型自适应矢量有限元计算策略，保证了对复杂大地电磁模型数值计算的精度和可靠性。5、实现了基于非结构化网格的三维大地电磁h-型自适应矢量有限元计算流程，对典型模型和国际标准电磁模型进行了数值模拟。

MMDM correction capability is analyzed and a closed-loop correction model of adaptive optical system is established. An adaptive optical experimental system based on MMDM is built. Moreover, wavefront from human eyes is used as the incident wavefront of adaptive optics system.

搭建基于MMDM 的自适应光学实验系统，采用人眼出射波前作为原始波前进行实验，结果表明，模型能快速有效的对动态畸变波前进行校正，为基于MMDM 的自适应光学系统提供了算法支持。

A sample numerical design method for constant beamwidth beamformer is given. This method is easy to implement and has no restriction on array geometry and sensor patterns; Three methods for the design of broadband frequency invariant beamformer are proposed, which are the method of resampling signals received by the array, the DFT interpolation method and adaptive synthesis method, respectively. Examples and performance analyses are given for each method; A simplified linear constrained minimum variance broadband adaptive algorithm that based on DFT interpolation method is presented. Compared with conventional broadband adaptive algorithms, the presented method can reduce computation work greatly.

提出了一种简单、易于实现的恒定束宽波束形成器设计方法，该方法对阵形和阵元指向性没有任何限制；分别提出了基于阵列接收数据重采样、基于DFT插值和自适应综合的三种具有频率不变波束图的宽带波束形成器设计方法，对于每一种设计方法都给出了一个设计实例并做了性能分析；提出一种基于DFT插值的简化线性约束最小方差宽带自适应阵列算法，该方法可以大大降低自适应阵列的运算量。

It is required the units of system having intelligent and adaptive. This kind of unit is calla agent.One character of Complex Adaptive Systems is having some adaptive agent.

随着信息技术的快速发展和广泛应用，信息系统正在逐渐从低级向高级、从孤立封闭向开放协同、从简单向复杂发展。

The adaptive ones accounted for 54%, moderate adaptive ones accounted for 27% of the total, less adaptive ones for 11%, unadaptive ones for 8%.

结果表明：适应的占54%，基本适应的占27%，欠适应的占11%，不适应的占8%。

Most introduced rare and endangered limestone plants are found adaptive or moderate adaptive to the habitat condition of the Garden. Of those unadaptive and less adaptive species, only a small portion were affected by soil condition, whereas others were affected by the difference of climate condition.

引种的大部分石灰岩珍稀濒危植物能够适应或基本适应桂林植物园的生境条件，而在不能较好地适应迁移地生境的物种中，小部分是由于土壤因素的影响，其余则是因气候条件的差异所致。

We introduce a kind of shunt-wound structure with a linear adaptive filter and a nonlinear adaptive filter. Using it, we design adaptive modeling, adaptive inverse modeling and controller.

给出一种结构新颖的非线性自适应滤波器进行自适应建模，逆建模，及控制器的设计。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。