由混沌映射驱动得到的伪随机二进制序列应确保有足够的比特安全性。
Sufficient bit security is necessary for pseudorandom binary sequences drived by chaotic maps.
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。
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.
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。
Using the sensitivity to the initial conditions and parameters of mixed-optical bistable chaotic sequence, we have a new scrambling algorithm about watermarking image.
给出了基于序列顺序置乱的信号白化算法：混沌序列乱序白化算法和伪随机序列乱序白化算法。
Present a whitening signal algorithm based on disordering sequence. One bases on chaos sequence, another bases on pseudo random sequence.
混沌流密码加密方案：利用时空混沌系统产生伪随机性能良好的二值序列，并通过了一系列性能检测，实现了对图像和语音文件的流密码加密。
Chaotic stream cipher scheme: good binary sequences are generated using chaotic system, and after performance tests the sequences are applied to encrypt images and speech signals.
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。
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.
分析了已有的序列线性复杂度分析方法，提出了用近似熵算法计算混沌运动的测度熵，作为衡量混沌伪随机序列复杂度的标准。
In this paper, the conventional pseudo-random sequence linear complexity is discussed, and a new criterion is proposed, based on the approximate entropy.
而混沌系统具有对初始条件敏感性、随机性、相关性等优良的密码学性能，能够产生性能良好的伪随机序列，所以很适合于序列加密。
Chaotic systems are sensitive to the initial condition, randomness and correlativity. They can produce good pseudo - stochastic sequences. Therefore, these systems are suitable to the stream cipher.
为产生新的数字混沌伪随机序列，构造了一个新的混沌系统。
In order to generate new chaotic pseudo-random sequences, a new chaotic system was constructed.
为产生新的数字混沌伪随机序列，构造了一个新的混沌系统。
In order to generate new chaotic pseudo-random sequences, a new chaotic system was constructed.
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