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System and methof of carrying out multiple dimentional dynamic non-linear transform for input sequence

A technology of nonlinear transformation and input sequence, which is applied in the field of pseudo-random sequence, can solve the problems of slow running speed, cumbersome steps, and complicated implementation, and achieve the effect of improving the running speed, simple system and method, and simple implementation

Inactive Publication Date: 2007-02-21
HUAZHONG UNIV OF SCI & TECH +1
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Problems solved by technology

[0029] Aiming at the defects of short pseudo-random sequence period, strong correlation and high-dimensional sparse grid structure, as well as the cumbersome steps of the existing "shuffling algorithm", the implementation is relatively complicated, and the running speed is relatively slow. The present invention proposes a method for System and method for multi-dimensional dynamic nonlinear transformation of input sequence to improve sequence randomness

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  • System and methof of carrying out multiple dimentional dynamic non-linear transform for input sequence
  • System and methof of carrying out multiple dimentional dynamic non-linear transform for input sequence
  • System and methof of carrying out multiple dimentional dynamic non-linear transform for input sequence

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[0050] Such as figure 1 Shown is a schematic diagram of the system structure of the present invention for multi-dimensional dynamic nonlinear transformation of the input sequence. It includes a multidimensional dynamic nonlinear transformation table part, a multidimensional dynamic nonlinear transformation table value taking part and a multidimensional dynamic nonlinear transformation table conversion part.

[0051] The multi-dimensional dynamic nonlinear transformation table component can realize the multi-dimensional dynamic nonlinear transformation table B according to the input sequence 0 initialization, including:

[0052] (s201) ​​Divide the value of i into n parts to obtain a 1 、a 2 ,...,a n , where a 1 +a 2 +......+a n-1 +a n = i, with 2 a1 ,2 a2 ,......,2 an As the length of the first dimension, the second dimension, ... the nth dimension constructs an n-dimensional nonlinear transformation table;

[0053] (s202) convert 0 to 2 i -1 out of 2 i The number...

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Abstract

A method for carrying out multidimensional dynamic nonlinear transform MDNT on input sequence includes finalizing initialization of MDNT table (MDNTT), obtaining input value from input sequence and using said input value as parameter to obtain output value according to value-taking algorithm of MDNTT, using said output value as parameter to carry out conversion on MDNTT according to conversion algorithm of MDNTT, naming converted MDNTT to be B1 and using obtained B1 as Bo of next circulation, judging whether input sequence is ended or not, ending transform if it is or otherwise obtaining input value to make transform continuously.

Description

technical field [0001] The present invention relates to pseudo-random sequence technology, and more specifically relates to a system and method for multi-dimensional dynamic nonlinear transformation of an input sequence. Background technique [0002] The theory and application of pseudo-random sequence, from generation to development, has a history of more than 20 years. The theory of pseudo-random sequence has been widely used in important technical fields such as communication, radar, navigation and cryptography in the early stage of its formation. In recent years, its application scope has far exceeded the above-mentioned fields, such as automatic control, computer, acoustic and optical measurement, digital tracking and ranging system, and fault detection of digital network system. For content on this aspect, please refer to the literature "Yang Ziqiang, Wei Gongyi, Review: Several New Methods for Generating Pseudo-Random Numbers, Numerical Computing and Computer Applica...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F7/58
Inventor 郑志彬位继伟胡汉平王祖喜吴晓刚石永许娅周麟朱子奇卢鹏宇
Owner HUAZHONG UNIV OF SCI & TECH
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