kmeans

摘要：本文基于Matlab对约瑟夫森结（Josephson Junction）RCSJ模型的交直流I-V特性及非线性混沌现象进行数值模拟。通过计算机数值模拟得到该模型的非线性微分方程数值解，研究了RCSJ模型中各参量对约瑟夫森结的影响，进而简要分析其I-V特性和非线性混沌现象的产生机理，绘制出约瑟夫森结的交直流I-V特性曲线、非线性微分方程的相图及因其高度非线性而引起的通过倍周期分岔和阵发性原理进入混沌状态的分岔图。 关键词：超导器件 隧道效应 约瑟夫森结 弱耦合 倍周期分岔 庞加莱截面 混沌 (Abstract: Matlab-based Josephson junction on the (Josephson Junction) RCSJ model AC and DC IV characteristics and non-linear numerical simulation of chaotic phenomena. Through computer simulation model by the numerical solution of nonlinear differential equations to study the RCSJ model parameters on the impact of Josephson junction, and a brief analysis of the IV characteristics and the emergence of the phenomenon of non-linear chaotic mechanism, drawn Josephson junction IV characteristic curve of AC-DC, non-linear differential equations and the phase diagram because of its highly nonlinear arising through period-doubling bifurcation and chaotic state of paroxysmal principle of access to the bifurcation diagram. Key words: superconducting devices tunnel effect Josephson junction weakly coupled period-doubling bifurcation chaotic Poincare section)

认知无线电中子载波和功率分配算法,包括改进型的功率分配算法(an algorithm of subcarrier and power allocation in cognitive radio systems)

数字信号处理中的一些典型程序，里面有程序说明列表。(Digital signal processing in the typical procedure, there are programs that list.)

机器人的matlab仿真代码，用于机器人学习(Robot simulation matlab code)

生成FSK-Costa码并画出PWVD三维图，可以直接运行(FSK-Costa and its PWVD)

绘制庞加莱截面图的程序。先通过solveLor.m来求出一系列点，然后代入Poincare_section 程序绘制庞加莱截面。 通过观察Poincare截面上截点的情况可以判断 是否发生混沌：当Poincare截面上有且只有一个不动点或少数离散点时，运动是周期的；当Poincare截面上是一封闭曲线时，运动是准周期的 当Poincare截面上是一些成片的具有分形结构的密集点时，运动便是混沌。 (Poincare section drawing program. First obtained by solveLor.m to a series of points, and then drawn into the program Poincare Poincare section. By observing the situation on the Poincare section cut points can determine whether chaos occurs: When there is only one fixed point or a few discrete points on the Poincare section, the motion is periodic When is a closed curve on the Poincare section, the motion is quasi- When is the point of having a dense fractal structure on some stretches of the Poincare section, the motion is chaotic period.)

说明：  基于PSO（粒子群算法）的列车速度优化，matlab实现。(Train speed optimization based on PSO (particle swarm optimization) is realized by matlab.)

此函数的功能为一个一维时间序列的多重分形特征(The function of this function for a one-dimensional time series of multi-fractal characteristics of)

C组合辛普森求积分 源程序 ＭＡＴＬＡＢ(C portfolio Simpson integral source for MATLAB)

采用舍选抽样和非序贯蒙特卡洛法算电力系统可靠性指标(Operators of power system reliability index uses Acceptance- rejection sampling and non-sequential Monte Carlo method)