逻辑数学模型

A model is proposed in this paper to deal with the signals which drive the combinational logic gates working at nonlinear region. The frequency analysis method is able to provide higher accuracy, while significantly speeding up simulations.

为了解决组合逻辑电路有时会工作在信号非线性区的问题，提出一种数学模型来精确描述瞬时错误在组合逻辑电路中传播过程。

In order to assist Boost converter design, the working process of the converter at discontinuous current mode was analyzed and a nonlinear mathematical model was estabilished as well. Case study on Matlab/ Simulink was performed with binary logical variable used, the simulation result was consistent with the theoretical analysis which proveed the validitd and feasibility of the proposed model. The model could be used to assist Boost circuit design effectively and supplie a basis for parameter optimization.

为了辅助升压变换器在应用中的设计，分析了电流断续状态下Boost变换器的工作过程，建立了这种状态下的Boost变换器非线性数学模型，在结合二进制逻辑变量，建立了Simulink模块下的变换器仿真模型，研究表明仿真结果与理论分析结果一致，证实了模型的准确性和可行性，这种逻辑与模拟结合的简明通用的模型可以高效辅助Boost电路设计并为参数优选打下了基础。

Based on the logistic curve of industrial cluster, the author recognizes three evolution stages of industrial clusters: germination, rapid development, and maturity.

首先建立了产业集群逻辑斯谛增长的数学模型，然后根据产业集群的逻辑斯谛增长曲线，将产业集群的发展过程分为初始、迅速成长和发展定型三个阶段。

A mathematical model of interceptor missile was constituted based on moment of momentum theorem. And with a view to mathematical model and fire logic of thrusters, a neural network controller of attitude motion system was designed for interceptor missile: acquiring basal controller based on simple method, and adjusting control parameters of simple controller using neural network.

首先基于动量矩定理建立了拦截弹姿态运动的数学模型，然后针对数学模型和推力器点火逻辑的特点，设计了拦截弹姿态运动系统的神经网络控制器。

On the basis of the study on the mathematical model of the closed-loop location control, the analysis of contour error in the process motion control and error calculation model, according to the lack of using normal contour error model not to calculate contour error of curve in real-time, combining real-time contour error compensation control strategy and fuzzy logic theory, the fuzzy logic and real-time contour error calculation based self-discipline control strategy is proposed.

2在研究闭环位置控制数学模型、加工轮廓运动控制中的误差分析和轮廓误差计算模型的基础上，针对利用一般运动轮廓误差计算模型不能实时计算出曲线轮廓误差的不足，结合实时轮廓误差补偿控制策略和模糊逻辑理论，研究了基于模糊逻辑理论和实时误差计算的轮廓自律控制策略。

Research and development of ABS/ASR for HFC6820 light bus is a challenging project. In fact the dissertation is a report of the project. In this dissertation a logic threshold controller based on the driving wheel skid rate is successfully designed for the HFC6820 light bus.

结合江淮汽车集团生产的HFC6820客车，建立该车驱动过程的数学模型和计算机仿真模型，包括：整车动力学模型、车轮模型、发动机模型、传动系模型、轮胎-地面模型、制动器模型、ASR控制逻辑。

Thermotical character is about section parameters and character curves; Mechanical character is about rotor's vibration and axial force.

本论文在熟悉和掌握离心式压缩机结构和原理的基础上建立了反映压缩机热力特性和机械特性的数学模型，取代了以往常用的回归模型和逻辑模型，较全面地描述了离心式压缩机的运行规律。

ABSTRACT Motived by the status of theoretical studies and the requirements of engineering applications in the fuzzy control system, the characters of fuzzy logic systems are analyzed, the mathematic model of a class of fuzzy logic system is built, especially the ways how to use the model to identify the nonlinear dynamic system and design the adaptive control system are researched deeply in this paper.

本论文根据模糊控制理论研究的发展现状、存在的主要问题以及工程实际应用的基本要求，分析了模糊逻辑系统的特性，建立起一类模糊逻辑系统的数学模型，并对其用于非线性动态系统辨识与自适应控制系统设计方法等方面进行了深入的研究，为解决某些传统方法难以解决的工程实际问题提供了新的思路。

Directed against the commonly used control methods which adopt logical threshold value, we put forward a self-optimizing control method, based on the single-wheel vehicle model, the loading diversion is laid special stress, further, build the mathematics model of two-wheeled vehicle, and the scene of which move on three types of typical road surface.

针对几种常用的主要采用逻辑门限值控制的方法，提出了一种自寻最优控制方法，并在已有的单轮汽车模型之上，重点考虑了载荷转移问题，建立了双轮汽车的数学模型，将该方法运用于双轮汽车的模型在三种典型路面的仿真。

Startup process timing analysis of liquid bipropellant pressure-fed propulsion system;2. Implementation of Parallel Extending Memory Based on Timing for AT89C2051;3. Combining with the timing of strip elements spraying status calculation and setup values outputting in on-line feed-forward control,the timing of calculation and outpu.

结合国内某1450mm热轧带钢厂层流冷却系统的改造，介绍了过程级数学模型子系统的组成，主要包括进程的划分及激活逻辑、共享数据区的分类及数据流程，并结合实际在线前馈控制过程中样本集管组态计算和下发的时序，以及自适应后计算时序及自适应系数的数据流程，说明了数学模型子系统构成机制的合理性和运行结果的有效性。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。