查询词典 characteristic

These algorithms firstly get the characteristic of line from the normal part, and then track the line under the guidance of the characteristic direction, so that it can track through intersection or overlapping parts to recognize an entire line in one step.

这些方法在线条的无干扰部分搜索其特征，然后在特征方向的指导下进行跟踪，可以避免线条上相交、粘连部分的干扰，完整地识别线条。

We mainly discussed its fuzzy characteristic, scattering characteristic and Lyapunov exponent.

本文主要讨论所构建的模糊混沌神经网络的模糊特性，耗散性和李亚普诺夫性能指标。

The stability of the linear periodic system is determined by it's characteristic exponent. This paper studies how to assign characteristic exponent for linear periodic system. In order to do this, the original system has to be converted to the block controllable form by rotating transform first.

摘要线性周期系统的稳定性完全由它的特征指数决定，该文研究如何配置线性周期系统的特征指数，为了配置特征指数，首先需要用旋转变换将原系统化简成块能控标准形。

The characteristic exponent based on a probabilistic dynamical system is calculated, which provides some useful information on unstable periodic orbits of the chaotic economic dynamical system. An effective controlling parameter is chosen by discussing the sign of the characteristic exponent. Furthermore, the control regions of the parameter variable are proposed. Therefore the controllable domain of chaos in the chaotic economic model can be obtained.

提出一种等价关系，计算基于概率的动力系统的特征指数，给出混沌经济动力系统的不稳定周期轨道的有用信息，通过讨论特征指数的符号，选择有效的控制参数，得到相应的控制参数取值范围，从而得到混沌经济模型中的参数变量的混沌控制域。

Based on the research results of Chaos theory, in this dissertation, it has made detailed analysis of the chaotic signal generator. Firstly, the characteristic and various detection methods of chaotic signal are recommended. Secondly, with the aid of software, such as MATLAB, PSPICE, EWB, etc, discussion of the process of generating chaotic signal proceeds. Through simulation, the output result of several kinds of chaotic circuit are analyzed and compared. Thirdly, aiming at Chuas chaotic circuit, through debugging, the impacts by components and parts in the circuit, such as operation amplifier, capacity, inductor, etc, has been further investigated. And then provides a new scheme to implement Lorenz chaotic system, the circuit design and analysis are presented in detail and it can be realized by the hardware of programmable arrays FPGA, the experimental results indicate that this scheme has the advantages of easy operation, flexible design and high efficiency. An application example in secure communications is also provided. Finally, through picking up the characteristic parameter-Lyapunov exponent of the Chaos we can analyze the performance of different chaotic signal generators.

本文在混沌理论研究成果的基础上，对混沌信号的产生做了详细的分析，涵盖以下内容：首先介绍了混沌的定义，混沌信号的基本特性和各种判别方法，特别是对简单的一维Logistic映射的硬件实现问题做了初步探索；其次对混沌信号的产生方法进行讨论，借助于MATLAB、PSPICE、EWB等仿真软件，对几种混沌电路输出的混沌信号进行了分析比较，并在此基础上针对典型三阶连续自治系统Chua's电路作进一步实验研究，通过混沌电路调试，深入研究电路中各元器件，特别是运算放大器、电容、电感等对混沌信号时域以及频谱的影响；再次研究连续混沌系统的数字化硬件产生，设计了Lorenz混沌电路在现场可编程门阵列FPGA上实现的新方案，在保密通信中的应用实验结果表明该方案具有操作简单、设计灵活、效率高等优点；最后针对不同混沌系统，采取不同算法，提取混沌特性参数Lyapunov指数，进而对不同的混沌信号发生器的性能进行了分析。

This article introduces that the principle and technical characteristic of infrared camera cutting to length,describes its functional characteristic,advantage and application in practice.

文章阐述了红外摄像定尺切割的原理和技术特点，并对它的功能特性和优点以及该技术在实际中的应用作了详尽的介绍。

This paper discusses the index of load characteristic, and analyses the factors that affect load characteristic. Also, a method that forecasting the day load curve has been cited.

本文探讨了负荷特性的指标体系，分析了影响负荷特性的因素并借助一个简单方法对辽宁省日负荷曲线进行预测。

The empirical study on seven main indexes in China stock market shows the PDFA method can be used to reveal the phenomena that the lasting characteristic of stock index will change with time, and is also useful for us to compare the similarity of lasting characteristic between different indexes.

对我国证券市场的七个主要指数的实证研究结果表明，本文提出的逐段非趋势波动分析方法能够有效揭示股票指数持久性特征随时间变化的现象，也有助于更深入的比较不同指数间持久性特征的相似程度。

To characteristic line as the center, characteristic line farther away from land distribution affected by the characteristics of the smaller lines.

以特征线为中心，特征线远离受影响的土地分配的特点，规模较小的线路。

By the finite element simulation to Qingchuan Bridge dynamic characteristic, the thesis discusses manifold factors which influence the dynamic characteristic of half-through concrete filled steel tubular arch bridge, and gets some conclusions.

本文通过对晴川桥的动力特性进行有限元模拟，论述了影响下承式钢管混凝土拱桥动力特性的多种因素，并得出了一些结论。

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。