1

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)

基本脉冲序列绘制 单位脉冲序列 单位阶跃序列 实数指数序列 复数指数序列 (Basic pulse sequence mapping unit unit step pulse sequence sequence sequence index is the plural index sequence)

在matlab平台上，针对多周期报童问题，采用值迭代算法、策略迭代算法和强化学习算法求解MDP模型的实例(This is an example presentting how to apply value-iteration algorithm，policy-iteration algorithm and reinforcement learning algorithm to MDP model, which aims to solve the multi-period newsboy problem.)

matlab实现图像分割，程序处理了压缩文件中的图片，将由灰度值构成的图转换成完全由黑白构成的图。(matlab image segmentation, handles the compressed file picture, gray scale value diagram will be converted to composed entirely of black and white composition.)

说明：  最基本的直接扩频中如何用m语言编写语句产生pn序列(generate pn sequence )

DWT音频水印提取程序，DWT音频水印提取程序，DWT音频水印提取程序(DWT audio watermark extraction procedure, DWT audio watermark extraction procedure, DWT audio watermark extraction procedures)

源码是BPSK单载波调制方式下对整个系统的调制与解调(Source is a single carrier BPSK modulation of the system under modulation and demodulation)

说明：  滤波器函数，包括圆延迟，使用圆延迟线的FIR滤波器(circular delay，FIR filter using circular delay-line buffer)

This Artificial Network model can be used to simulate a real transmission line in one or more of these respects.

基于simulink的SVPWM仿真，自己编写的，最后还差一个三相桥，大家可自行加上(Based on SVPWM simulation simulink, I have written, and finally a three-phase bridge worse, we can add their own)