Nonlinear pseudorandom sequence generator

A pseudo-random sequence and non-linear technology, applied in the field of pseudo-random sequence generation, can solve the problems of increasing the complexity and loss of pseudo-random sequences, and achieve the effect of easy hardware and software implementation, easy implementation, and good linear complexity

Inactive Publication Date: 2012-10-17
ANHUI UNIVERSITY OF ARCHITECTURE +1
View PDF2 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This generation method improves some characteristics of the sequence, but at the same time los

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Nonlinear pseudorandom sequence generator
  • Nonlinear pseudorandom sequence generator
  • Nonlinear pseudorandom sequence generator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] In order to make the purpose, method, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0036] figure 1 It is a logical structure diagram of a nonlinear pseudo-random sequence generator provided by an embodiment of the present invention. The nonlinear pseudo-random sequence generator is a nonlinear m-subsequence generator based on an m-sequence shift register, which includes a shift register unit and a feedback logic unit.

[0037] Wherein, the m-sequence shift register is an m-sequence shift register with a primitive trinomial feedback function, the input of the shift register unit is coupled to the output of the feedback logic circuit, and the state output of the shift register is coupled...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a nonlinear pseudorandom sequence generator, comprising a shift register unit and a feedback logic unit. The feedback logic unit comprises a linear feedback logic unit, a nonlinear feedback logic unit and a synthetic unit. The input end of the linear feedback logic unit is correspondingly connected with the state output end of the shift register unit according to own primitive trinomial feedback function, while the output end thereof is connected with one input end of the synthetic unit; the input end of the nonlinear feedback logic unit is correspondingly connected with the state output end of the shift register unit according to own nonlinear characteristic function, while the output end thereof is connected with another input end of the synthetic unit; and the synthetic unit comprises an exclusive-OR gate, the input end of the synthetic unit is respectively connected with the output end of the linear feedback logic unit and the output end of the nonlinear feedback logic unit, and the output end of the synthetic unit is connected with the input end of the shift register. The pseudorandom sequence generated by the generator has high linear complexity and long cycle, and the generation method is simple.

Description

technical field [0001] The present invention relates to pseudo-random sequence generation technology, in particular to a nonlinear pseudo-random sequence generator Background technique [0002] The m-sequence is a pseudo-random sequence generated by the Maximum-length linear feed back shift register (MLLFSR). It has good periodic characteristics, balance characteristics, run length characteristics, and autocorrelation characteristics. It has a wide range of applications in many important fields such as communication, radar, testing, and navigation. [0003] However, the number of m-sequences is limited, and it is difficult to meet the massive address codes required by the communication system; its linear complexity is low, and it is difficult to resist the attack of the enemy in information encryption. [0004] In practical applications, in order to obtain a pseudo-random sequence with a long period and high complexity, it is often necessary to perform operations such as tr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06F7/58
Inventor 吕虹朱达荣汪小龙陈蕴方俊初张爱雪戚鹏常伟
Owner ANHUI UNIVERSITY OF ARCHITECTURE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap