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Description: 该软件用于研究周期信号的混沌检测，通过Duffing方程，检测极微弱信号，非常有用。-software for the study of the cycle of chaotic signal detection through Duffing equation, detect very weak signal, very useful.
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Size: 6228 |
Author: 罗维 |
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Description: 使用VisualC++.net实现常见5种混沌信号的图像混沌加密算法。-use VisualC. Net achieve common five chaotic signal chaotic image encryption algorithm.
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Size: 180341 |
Author: 王大力 |
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Description: 用相空间局部投影法对加噪混沌时间序列去噪或进行混沌序列与正弦信号的分离。-phase space with local law to increase the projector noise chaotic time series denoising or chaotic sequence with sinusoidal signal separation.
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Size: 1024 |
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Description: 该软件用于研究周期信号的混沌检测，通过Duffing方程，检测极微弱信号，非常有用。-software for the study of the cycle of chaotic signal detection through Duffing equation, detect very weak signal, very useful.
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Size: 6144 |
Author: 罗维 |
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Description: 使用VisualC++.net实现常见5种混沌信号的图像混沌加密算法。-use VisualC. Net achieve common five chaotic signal chaotic image encryption algorithm.
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Size: 196608 |
Author: 王大力 |
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Description: 研究了利用混沌相变进行弱信号检测的理论及仿真试验( 对基于) 振子初值敏感性检测弱信号的方法分
析后指出，过渡过程会影响检测性能，提出一种改进的弱信号检测方法( 对仿真输入噪声生成和仿真步长选择进行
研究后建立了仿真模型，在典型噪声背景下检测弱正弦信号( 实验结果表明：所提出的方法有较好检测性能；混沌
临界态的 系统对噪声敏感导致相变方法难以精确确定最小检测-Studied the use of chaotic phase transitions for weak signal detection theory and simulation test (based on) the sensitivity of oscillator initial value method of weak signal detection analysis pointed out that the transition process will affect the detection performance, an improved method of weak signal detection ( on the simulation input noise generation and simulation step size selection study established a simulation model, in a typical background noise detection of weak sinusoidal signals (Experimental results show that: the proposed method has better detection performance chaotic critical state of the system to noise-sensitive lead to phase-change method difficult to accurately determine the minimum detectable
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Size: 273408 |
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Description: 研究了利用混沌相变进行弱信号检测的理论及仿真试验( 对基于)振子初值敏感性检测弱信号的方法分
析后指出，过渡过程会影响检测性能，提出一种改进的弱信号检测方法( 对仿真输入噪声生成和仿真步长选择进行
研究后建立了仿真模型，在典型噪声背景下检测弱正弦信号( 实验结-Studied the use of chaotic phase transitions for weak signal detection theory and simulation test (based on) the sensitivity of oscillator initial value method of weak signal detection analysis pointed out that the transition process will affect the detection performance, an improved method of weak signal detection ( on the simulation input noise generation and simulation step size selection study established a simulation model, in a typical background noise detection of weak sinusoidal signal (experimental colorectal
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Size: 16384 |
Author: |
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Description: 研究了利用混沌相变进行弱信号检测的理论及仿真试验( 对基于)振子初值敏感性检测弱信号的方法分
析后指出，过渡过程会影响检测性能，提出一个猜数游戏，一种改进的弱信号检测方法( 对仿真输入噪声生成和仿真步长选择进行
研究后建立了仿真模型，在典型噪声背景下检测弱正弦信号( 实验结-Studied the use of chaotic phase transitions for weak signal detection theory and simulation test (based on) the sensitivity of oscillator initial value method of weak signal detection analysis pointed out that the transition process will affect the detection performance, make a guess the number of games, an improved weak signal detection methods (for simulation input noise generation and simulation step size selection study established a simulation model, in a typical background noise detection of weak sinusoidal signal (experimental colorectal
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Size: 5120 |
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Description: 一个混沌信号产生器MATLAB源代码.主要用于产生混沌信号序列-A chaotic signal generator MATLAB source code. Mainly used to produce chaotic signal sequence
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Size: 87040 |
Author: zzx |
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Description: 本文提出了基于二维混沌映射的数字图像水印算法，混沌具有随机性、似噪声及对初始条件的极端敏感性等特点。将经过二维混沌映射置乱后的数字水印信号嵌入图像小波域的低频系数，实现了数字水印的隐蔽性、保密性和稳固性；利用二维混沌映射Arnold变换对水印信号进行置乱，不仅增强了水印信号保密性，同时有效提高了视觉上抵抗图像剪切攻击的能力。-In this paper, two-dimensional chaotic map based on digital image watermarking algorithm, Chaos with random noise and the likelihood of extreme sensitivity to initial conditions and so on. Two-dimensional chaotic map will be scrambling after the digital watermark embedded image signal of the low-frequency coefficients in wavelet domain, the realization of a digital watermark hidden, security and stability the use of two-dimensional chaotic map on Arnold transform scrambling watermark signal, not only enhances the confidentiality of the watermark signal at the same time improve the visual image shear resistance attacks.
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Size: 668672 |
Author: lafeng |
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Description: It is a Fortuan Based codes to calculate Lyapunov Exponnent! It is especially useful in chaotic signal processing!
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Size: 657408 |
Author: shouyi |
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Description: 关于混沌振子检测弱信号的系统相位变化图，对初学混沌的人很有用。-On the chaotic oscillator detection of weak signal changes in the system phase diagram, for beginners who chaotic useful.
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Size: 2048 |
Author: zhoutian |
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Description: 基于MATLAB的 UWB 混沌信号建模与性能分析-MATLAB-based UWB chaotic signal modeling and performance analysis
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Size: 27648 |
Author: 龚帅 |
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Description: 基于最大信噪比的盲源分离算法，源信号为混沌信号。-Based on the maximum signal to noise ratio Blind source separation algorithm, the source signal for the chaotic signal.
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Size: 1024 |
Author: Gina |
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Description: 基于双耦合Duffing振子的随机相位正弦信号检测
采用双耦合混沌振子阵列实现了随机相位微弱正弦信号的检测，在此基础上，提出了新的检测方法，即利用单个耦合混沌振子，通过临界及周期状态
的变化检测随机相位微弱正弦信号并大致估计信号相位范围，该方法比双耦合混沌振子阵列法简单，更易于实现。-Based on double coupled Duffing oscillators random phase sine signals detected by two coupled chaotic oscillator arrays to achieve a random phase weak sinusoidal signal detection, in this basis, the proposed new detection methods, namely the use of a single coupled chaotic oscillators, through the critical and the cycle random phase state change detection and generally weak sinusoid signal phase estimated the scope of the method than the two-coupled chaotic oscillators array method is simple and more easy to implement.
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Size: 211968 |
Author: 魏新建 |
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Description: 产生混沌信号并对其进行中心化，计算混沌信号自相关函数-Chaotic signal and to generate centralized its calculated autocorrelation function of chaotic signal
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Size: 1024 |
Author: 申朝阳 |
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Description: 混沌信号优化，希望对混沌研究者有些帮助-Chaotic signal optimization, the researchers hope to be helpful chaos
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Size: 1024 |
Author: cyp |
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Description: 典型混沌序列的生成，可以根据自己的参数修改，并进行相空间重构-A typical chaotic sequence is generated, you can modify according to their parameters, and phase space reconstruction
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Size: 1024 |
Author: bruce |
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Description: 基于小波多分辨率分析的思想，提出一种降低混沌信号噪声的方法。首先对一个混沌时间序列进行小波分析，得到信
号在各个尺度上的不同特性 再对各个高频细节信号进行二次小波去噪 最后对二次小波去噪后的信号进行线性叠加，达到
提取真实信号的目的。分别对Rossler 系统产生的混沌序列和黄河年径流量混沌序列进行了仿真研究，结果表明了该方法的
有效性。-A method was proposed to reduce noise within chaotic signal based on mulrti-resolution wavelet transform.
Based on the wavelet analysis ，different characters of chaotic signal were observed on different scales.
Then ,each detail with high frequencies was denoised by wavelet for the second time in order to observe the real
signal. Chaotic time series generated by Rossler systemand the practically observed yearly runoff of Yellow River
were respect ively applied for noise reduct ion. Simulat ion results show that this method is feasible to noisy chaot ic
signal.
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Size: 285696 |
Author: 张洋 |
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Description: 为了提高小波分析方法在混沌去噪中的自适应能力，对不同尺度下的小波信号设定调节因子，根据混沌序列
关联维的大小确定最优阈值。为了提高寻优效率，采用遗传算法全局自适应搜索最优阈值。利用该方法对Lorenz混沌时
间序列进行了去噪分析，结果表明所提方法是非常有效的。-For the purpose of improving adaptive performance of chaotic signals de-noising with wavelet transform，a
floating parameter is set to regulate the threshold of wavelet signal on different scales according to the correlation dimension
of chaotic time series．The genetic algorithm is helpful tO obtain global optimum thresholds and tO reduce much time wasted
by the adaptive searching computation．De-noising for Chaotic time series generated by Lorenz system is simulated to corn—
pare with other methods，and the results showed that the proposed method iS effective
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Size: 288768 |
Author: 张洋 |
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