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

A method and system for capturing multi-user burst spread spectrum signal in asynchronous communication system

A burst spread spectrum signal, asynchronous communication technology, applied in transmission systems, electrical components and other directions, can solve the problem of long acquisition time, can not meet the rapid acquisition of burst signals, etc., achieve fast acquisition speed, improve cumulative signal noise the effect of

Active Publication Date: 2022-07-01
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This acquisition method adopts the method of code phase serial search, and the realization structure is simple, but the acquisition takes a long time, which cannot meet the needs of rapid acquisition of burst signals

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 method and system for capturing multi-user burst spread spectrum signal in asynchronous communication system
  • A method and system for capturing multi-user burst spread spectrum signal in asynchronous communication system
  • A method and system for capturing multi-user burst spread spectrum signal in asynchronous communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are part of the present invention. examples, but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0051] like figure 1 As shown, this embodiment provides a method for acquiring a multi-user burst spread spectrum signal in an asynchronous communication system, including the following steps:

[0052] Step 1. Carrier and Code Dynamic Cancellation

[0053] Compensate for the Doppler dynamics of the carrier and code of the received signal,

[0054] Step 2. Cache

[0...

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 multi-user burst spread spectrum signal acquisition method in an asynchronous communication system. In order to reduce the overhead brought by the acquisition of the synchronization header, the invention needs to complete the acquisition within the shortest possible time when the burst signal starts. Therefore, the system adopts the carrier-code full parallel correlation method for acquisition, and at the same time, in order to improve the cumulative signal-to-noise ratio, the multi-bit coherent accumulation method combined with multiple incoherent accumulation methods is used to divide the carrier Doppler interval into multiple different In the subcarrier interval, parallel acquisition is carried out in each subcarrier interval, and multiple users with different code phases can be identified through de-duplication.

Description

technical field [0001] The invention relates to the field of burst signal processing, in particular to a multi-user burst spread spectrum signal acquisition method and system in an asynchronous communication system. Background technique [0002] With the popularity of satellite applications, satellite IoT applications based on burst signals will gradually prevail. In order to effectively reduce interference and reduce the transmission power spectral density to the surface, spread spectrum communication has gradually become one of the mainstream communication methods. At present, in most satellite communication networks, the synchronous communication method is adopted, that is, the synchronization between multiple users and satellites is maintained. In this way, there is no situation that multiple user signals are superimposed at the same time at the ground receiving end. However, asynchronous communication systems do not require users to synchronize with satellites, and ar...

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): H04B1/7087H04B1/7093
CPCH04B1/7087H04B1/7093
Inventor 姚艳军赵宇峰顾何方王烁任伟龙黄蕾章明明张正宇王昕张霄
Owner CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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