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

A system and method for global information transmission using navigation satellites

A navigation satellite system and information transmission technology, applied in transmission systems, radio transmission systems, electrical components, etc., can solve problems such as difficult to complete, unable to find and decrypt encrypted information, achieve long working hours, improve system utilization, and expand The effect of use

Active Publication Date: 2018-03-09
XIAN INSTITUE OF SPACE RADIO TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the information is hidden, even if the encrypted multimedia data is intercepted by an illegal user, it can only read the multimedia content in the carrier, but cannot discover and decipher the encrypted information hidden in it.
[0009] For information hiding, it is difficult for possible monitors or illegal interceptors to discover the hidden secret information from public information; and if all public information is to be intercepted and inspected, time, resources, technology, etc. Look, it's a difficult task

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 system and method for global information transmission using navigation satellites
  • A system and method for global information transmission using navigation satellites
  • A system and method for global information transmission using navigation satellites

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] Specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0043] 1. Basic technology

[0044] In order to better understand the present invention, the basic technologies involved in the present invention are first explained.

[0045] 1. Information hiding technology

[0046] Information hiding is usually regarded as a communication process, its input is the secret data to be transmitted, the public carrier data is transmitted in the channel, and the carrier data with hidden secret information is received.

[0047] The embedding algorithms for information hiding are divided into two categories: one is the lossless information hiding method (the information is lossless, and the carrier is also lossless), and the other is the lossy information hiding method (the information is lossless, the carrier has a certain loss). A typical lossy information hiding method is the spatial LSB (Least Signifi...

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 system and method for carrying out global information transmission by utilizing a navigation satellite. Information transmission is carried out by utilizing the existing navigation telegraph message transmission system of the navigation satellite; on the premise of not changing a navigation telegraph message transmission format and a transmission rate, an information injection hidden transmitter is additionally arranged in the front of a navigation telegraph message transmitter; hidden transmission of user data is realized based on an information hiding method; normal use of a navigation positioning satellite system is not influenced; the practical functions of the navigation positioning satellite system are expanded; multiplexing of a navigation satellite channel is realized; a broadcast communication manner facing to the coverage area of the navigation satellite is also provided; by means of the system, any individual user can receive information through a commercial civilian navigation satellite user receiver; any hardware cost is nearly unnecessary; and for example, real-time and non-real-time text transmission and non-real-time image transmission can be provided in border areas, foreign travel areas, areas without other communication manners and areas, where communication manners are inconvenient to use.

Description

technical field [0001] The invention relates to a system and method for global information transmission using navigation satellites, belonging to the field of navigation and space communication. Background technique [0002] Satellite navigation is a method to accurately determine the position and time of any point on the earth through the Global Navigation Satellite System (GNSS). There are currently four major satellite navigation systems in the world, namely the GPS (Global Positioning System) system of the United States, the GLONASS (Global Navigation Satellite System) system of Russia, the Galileo (Galileo Positioning System) system of Europe and the BeiDou (COMPASS) satellite navigation system of China. )Navigation Satellite System) system. [0003] GPS is the most widely used satellite navigation system in the world. Its research and development was proposed by the US Department of Defense for the purpose of high-precision navigation and positioning of various weapon...

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): H04B7/185H04L29/06
CPCH04B7/1851H04L63/0428
Inventor 周诠冯新岗黎军李小军李晓博
Owner XIAN INSTITUE OF SPACE RADIO TECH
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