Variation function, which is the core and a basic tool of geostatistics, can describe not only the spatial structure change, but also the randomicity change of the regional variable.
变异函数是地质统计学的核心内容和基本工具，它既能描述区域化变量的空间结构性变化，又能描述其随机性变化。
It is introduced the basic concept, mathematical expression and design problems of the variable structure system and the application of AC motor speed adjustment system.
介绍变结构系统的基本概念、数学表达设计问题及其在交流电机调速系统中的应用。
The idea and basic problem in variable structure control, differential geometry method on feedback linearization , inverse system method, direct feedback linearization method are mainly described.
主要介绍了变结构控制、反馈线性化的微分几何方法、逆系统方法、直接反馈线性化等方法的基本思想和基本问题。
This paper introduces the basic principle of dual-mode rotary field mutil-function variable polarizer and analyzes the detail of its structure, design and performance.
介绍了双模转场多功能变极化器的基本原理，分析了它的结构、设计和特性，并给出了设计和实验的结论。
Based on feedback linearization in the nonlinear systems and variable - structure control theory in the linear system, a new nonlinear basic controller is designed.
并应用状态反馈精确线性化方法与线性系统的变结构控制理论相结合的方法，设计了新型非线性变结构控制器的控制规律。
The basic idea of the variable-structure multiple model algorithm is expatiated. A variable-structure IMM algorithm for tracking a maneuvering target is studied and designed.
将当前统计模型和变结构多模型估计算法相结合，阐述了变结构多模型算法的基本思想，研究和设计了一种用于跟踪机动目标的变结构交互多模型算法。
The basic idea of the variable-structure multiple model algorithm is expatiated. A variable-structure IMM algorithm for tracking a maneuvering target is studied and designed.
将当前统计模型和变结构多模型估计算法相结合，阐述了变结构多模型算法的基本思想，研究和设计了一种用于跟踪机动目标的变结构交互多模型算法。
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