Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A joint interleaving method of prime code family for coherent fast frequency hopping system

A technology of frequency hopping and prime numbers, which is applied in the field of joint interweaving of prime code families, can solve the problems that spread spectrum technology is difficult to deal with, high interference transmission power, and many interference patterns, so as to improve anti-interception ability and information concealment, and improve storage capacity Larger, improved latency with higher effects

Active Publication Date: 2020-04-21
BEIJING INSTITUTE OF TECHNOLOGYGY
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional spread spectrum technology is difficult to cope with the characteristics of the new type of interference, such as high transmission power, wide frequency bandwidth, and many interference patterns.

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
  • A joint interleaving method of prime code family for coherent fast frequency hopping system
  • A joint interleaving method of prime code family for coherent fast frequency hopping system
  • A joint interleaving method of prime code family for coherent fast frequency hopping system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] This embodiment describes the specific implementation of a joint interleaving method of a coherent fast frequency hopping system according to the present invention, and its realization structure schematic diagram is as follows figure 1 shown.

[0079] Depend on figure 1 It can be seen that the sent data enters the source interleaving unit through the source encoding unit to perform source interleaving based on the prime code family matrix, and the source interleaving parameters come from the parameter p sent by the interleaving parameter control unit 1 ; The symbols after source interleaving are modulated by the modulation unit, and the output modulated symbols are sent to the channel coding unit for channel coding. After channel coding, they enter the channel interleaving unit for channel interleaving. The channel interleaving unit uses the parameter p outputted by the interleaving parameter control unit 2 Generate a prime code family matrix, and then perform channel ...

Embodiment 2

[0082] Specifically in this embodiment, when the single-tone interference-to-interference ratio is lower than 10dB or the narrowband interference-to-signal ratio is lower than 3dB, the frequency hopping unit and the de-frequency hopping unit are not connected to the system.

[0083] When the frequency hopping unit and de-frequency hopping unit are not connected, the corresponding operations in the summary of the invention: step 7 and step 9 are also deleted, and the sequence of other steps is advanced.

Embodiment 3

[0085] Specifically, when this embodiment is implemented, when the Eb / No is higher than 30dB, the direct spreading unit and the despreading unit are not connected to the system.

[0086] When the direct spreading unit and the despreading unit are deleted, corresponding operations in the summary of the invention: step 6 and step 10 are also deleted, and the sequence of other steps is advanced.

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 relates to a prime code family joint interleaving method for a coherent fast frequency hopping system, belonging to the technical field of spread spectrum communication and communicationsignal processing. Transmitting data for source coding, source interleaving, modulation, channel coding, channel interleaving, direct spread spectrum and frequency hopping into the channel; The receiving end performs frequency hopping, despreading, channel interleaving, channel decoding, demodulation, source deinterleaving and source decoding on the received data; Wherein, the source interleavingand the source decoding interleave and deinterleave the input symbols respectively according to the prime number parameter 1 generated by the interleaved parameter control unit as an interleaved address; Channel interleaving and channel deinterleaving interleave and deinterleave the input symbols respectively according to the prime number parameter 2 generated by the interleaving parameter control unit as interleaved addresses. The method of the invention has strong signal transmission anti-interception ability and information concealment, and is flexible in realization, wide in use adaptability and close to user requirements.

Description

technical field [0001] The invention relates to a joint interleaving method of a prime code family used in a coherent fast frequency hopping system, and belongs to the technical field of communication signal processing. Background technique [0002] The combat idea based on the integration of "observation / strike / destruction / evaluation" is a concentrated expression of informationization, systematization and rapid response of modern warfare. Its necessary foundation is reliable information transmission between various platforms that make up the weapon system link. Considering the openness of the wireless propagation environment and the complexity of the battlefield environment, the wireless communication system applied to the weapon platform must have very strong anti-jamming characteristics. The traditional spread spectrum technology is difficult to cope with the characteristics of the new type of interference, such as high transmission power, wide frequency bandwidth and ma...

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
Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04B1/7097H04B1/71H04B1/715
CPCH04B1/7097H04B1/71H04B1/715H04B2001/7152H04L1/0041H04L1/0045H04L1/0071
Inventor 卢继华倪宣浩王帅赵悦宋哲
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com