OFDM synchronization algorithm based on chaotic sequence is researched.
本文着重研究基于混沌序列的OFDM同步算法。
Then, an improved method of generating chaotic sequence and the iden of serial sequence are talked.
然后，文中又讨论了一种产生混沌序列的改进方法和级联序列的思想。
The approach to generating digital chaotic sequence can be applied in secret communications and information encryption.
这种产生数字混沌序列的方法可应用于保密通信和信息加密之中。
Firstly, it can be obtained 2-value watermark image by PDF417 coding to watermark information and chaotic sequence scrambling.
首先将水印信息进行PDF417编码，并在密钥控制下进行混沌序列置乱后得到二值水印图像；
Mapping method about chaotic sequence is researched to encryption factor sequence using two-dimensional discrete chaotic model.
采用二维离散混沌模型，研究了从混沌序列到加密因子序列的映射方法。
At first, this thesis expounds linear-shift-register sequence and chaotic sequence, and calculates the value of their main properties.
文中首先对线性移位寄存器序列和混沌序列做了阐述，并对其主要性能做了计算。
This paper analysed the statistic property of chaotic sequence generated by a widely studied discrete time dynamic system, Logistic_Map.
研究了离散时间动态系统混沌序列的统计特性。
The chaotic sequence has easy to produce, is sensitive to the initial condition as well as has the statistical property of the white noise.
混沌序列具有容易生成、对初始条件敏感以及具有白噪声的统计特性。
Chaotic sequence can be produced easily and is sensitive of the original conditions and parameters. In recent years, it is widely used in image encryption.
混沌序列具有容易生成，对初始条件和混沌参数敏感等特点，近年来在图像加密领域得到了广泛的应用。
It utilizes the characteristic of sensitivity to initialization and indeterminism to contrail, so chaotic property determines the performance of chaotic sequence.
它利用了混沌对初始条件敏感、轨迹具有不可预测性的特点来产生跳频序列。
In this paper, the prediction of mathematical model for chaotic sequence in electronic antagonism and the anti-reconnaissance based on chaotic sequence are presented.
本文介绍了电子对抗中对混沌时间序列进行预测的一种数学模型和一种基于混沌序列的反侦察系统。
Using the sensitivity to the initial conditions and parameters of mixed-optical bistable chaotic sequence, we have a new scrambling algorithm about watermarking image.
利用混合光学双稳混沌序列的伪随机性和初值敏感性，提出一种用于数字水印中的水印图像置乱算法。
Taking dual chaotic inter-perturbed system as sequence key generator, an improved quantization method for converting chaotic sequence to binary sequence was put forward.
以双混沌互扰系统作为序列密钥发生器，提出一种改进的二值序列量化方法。
By defining adjacent relations among the components of a chaotic sequence, we introduce a method based on network adjacent graph to depict the randomness of this sequence.
通过定义混沌序列中元素之间的邻接关系，提出了一种基于网络邻接图的方法来刻画此序列的随机性。
Chaotic sequence has become one of important research direction in treat secret information because of its dummy randomness and sensibility to initial value and parameter.
混沌序列由于具有很好的伪随机性且具有对初值和参数的敏感性特性，成为处理秘密信息的一个重要的研究方向。
Based on the analysis of the defect of the traditional iterated image scrambling, a new image scrambling algorithm was proposed based on chaotic sequence and bit exchange.
在分析传统迭代型图像置乱方法不足的基础上，提出一种新的基于混沌序列和位交换的图像置乱算法。
Data encryption is a main means to keep data in safety. Concerning the characteristics of vector map data, the paper presents an encryption algorithm based on chaotic sequence.
加密技术是保障数据安全的最主要的手段，结合矢量地图数据的特点，设计了一种基于混沌序列的数据加密算法。
In this method, the original image 's feature is extracted by using wavelet transform and quantization. The feature information is changed into watermark by the chaotic sequence encryption.
该方法在一定的量化标准下利用小渡变换提取图象的特征信息，通过混沌序列对其加密生成数字水印。
Because the chaotic sequence is very sensitive to the initial value, the attackers cannot deduce the whole sequence from the finite sequence and the security of watermark information is ensured.
攻击者很难从一段有限长度的序列推断出整个混沌序列的初始条件，因此可保证水印信息的安全性。
A random unlikeness chaotic sequence is created with random function. Mirror image transforms with this chaotic sequence, then the information is transformed to secret-code files by this sequence.
首先由随机函数生成得到任意的不相等的混沌序列，以此序列作镜像变换后对信息进行置换而得到加密文件。
According to a binary sequence generated from a chaotic system, the weights and biases of the network are set for the encryption and or decryption of each signal element.
根据混沌系统产生的二进制序列，设定神经网络的权值和阈值，对每一个像素进行加密和解密运算。
In this paper, a finite precision chaotic FH sequence generator is designed based on the structure of digital filters.
本文采用有限精度非线性数字滤波器结构设计混沌跳频序列发生器。
In order to generate the optimal spreading sequences for asynchronous DS-CDMA, some optimizing criteria for selecting chaotic binary sequence were proposed.
为了获得异步ds - CD MA系统的最优扩谱序列，给出了一套用来选取混沌二值序列的优化准则。
By considering a chaotic pseudo_random sequence as a symbolic sequence, we present a symbolic dynamics approach for the complexity analysis of chaotic pseudo_random sequences.
通过将混沌伪随机序列看成一个符号序列，提出了用符号动力学的方法来分析混沌伪随机序列的复杂度。
As an application, it is proved that a continuous map of an interval is chaotic iff it is distributively chaotic in a sequence.
给出紧度量空间上连续映射按序列分布混沌的一个充分条件，并证明区间连续自映射是混沌的当且仅当它是按某序列分布混沌的。
The chaotic signal, which possesses natural randomness, can be used for information encryption as sequence cipher.
混沌信号具有天然的随机性，可以作为序列密码应用于信息加密。
The film's first sequence is a Carax signature: a long, unbroken tracking shot of Lavant barreling down a city street, beautifully chaotic and dangerously alive.
电影的第一个序列是苔签名：一个长期，不间断的拉旺桶形了跟踪拍摄一个城市的街道，优美的混乱和危险的活。
This paper offers a compound chaotic system based mutiple model used as sequence cipher, which has a high encryption speed, a large key space and is difficult to crack.
本文提出一种基于多模型的混合混沌系统，它具有加密速度快，密匙空间大，不容易破解的优点。
Afterward, we can gain spread spectrum sequence by sampling and quantizing the analog chaotic signals.
对输出的模拟混沌信号进行过采样和最优量化，可得到性能优良的扩频序列。
Afterward, we can gain spread spectrum sequence by sampling and quantizing the analog chaotic signals.
对输出的模拟混沌信号进行过采样和最优量化，可得到性能优良的扩频序列。
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