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

Aircraft signal transmission system and signal transmission method thereof

A signal transmission system and signal transmission technology, applied in transmission systems, radio transmission systems, electrical components, etc., can solve problems such as limited transmission distance and achieve the effect of avoiding emission interference

Active Publication Date: 2022-03-11
CIVIL AVIATION FLIGHT UNIV OF CHINA
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides an aircraft signal transmission system and its signal transmission method to solve the limitation of transmission distance. The maximum communication distance of 1090ES, UAT mode and VDL4 mode ADS-B does not exceed 400KM, so it needs to be constructed within a radius of 400KM Problems with ADS-B ground receiving stations

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
  • Aircraft signal transmission system and signal transmission method thereof
  • Aircraft signal transmission system and signal transmission method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as figure 1 and figure 2 as shown,

[0038] The aircraft signal transmission system includes a BDS antenna for receiving satellite navigation information, a BDS unit connected to the BDS antenna, an ADS-B interface unit connected to the BDS unit, an ADS-B message encoding unit connected to the ADS-B interface unit, and The UAT radio frequency transmitting unit and the Beidou transmitting unit connected to the ADS-B message coding unit.

[0039] The Beidou airborne ADS-B transmitter researched by the present invention selects Beidou as the GNSS navigation source of the system, and its data link supports the dual mode of traditional UAT data link and Beidou short message communication link. The message is encoded according to ADS-B, and is transmitted on the UAT link of ADS-B at the same time, and is transmitted on the Beidou short message data link at the same time, realizing the dual-link parallel transmission mechanism. The UAT link of ADS-B is the UAT radio f...

Embodiment 2

[0055] Such as figure 1 and figure 2 as shown,

[0056] The signal transmission method based on the described aircraft signal transmission system comprises the following steps:

[0057] Receive satellite navigation information through BDS antenna;

[0058] Through the BDS unit, the satellite navigation information is processed through the baseband to obtain the position information and the PPS time slot;

[0059] Carry out navigation integrity verification on the position information and PPS time slot through the ADS-B interface unit, and send the verified position information and PPS time slot to the ADS-B message encoding unit;

[0060] The location information is encoded by the ADS-B message encoding unit according to the ADS-B message encoding rules to obtain the encoded message information, and the local time slot is randomly generated, and the synchronization signal is obtained by the ADS-B message encoding unit. When the current After the synchronization signal arr...

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 discloses an aircraft signal transmission system, comprising a BDS antenna for receiving satellite navigation information, a BDS unit connected with the BDS antenna, an ADS-B interface unit connected with the BDS unit, and an ADS-B message connected with the ADS-B interface unit The encoding unit, the 1090ES radio frequency transmitting unit and the Beidou transmitting unit connected to the ADS-B message encoding unit, can realize the whole airspace transmission within the range covered by the Beidou satellite, so the Beidou ground command center used to receive the message information only needs to be built One, at present, it can realize the coverage of no blind zone and the entire airspace in the Asia-Pacific region. In the future, with the global coverage of Beidou, the device can achieve global coverage without blind zone, and at the same time use the matching of PPS time slots and local random time slots to transmit message to avoid transmission interference, and at the same time use a good message coding method to implement RS coding.

Description

technical field [0001] The invention relates to the field of aircraft positioning, in particular to an aircraft signal transmission system and a signal transmission method thereof. Background technique [0002] ADS-B (Automatic Dependent Surveillance-Broadcast) is an emerging surveillance technology recommended by ICAO in the new navigation system. It is an aircraft operation surveillance technology based on satellite positioning and ground / air data link communication. The aircraft position data of the equipment is automatically sent to the ground receiving and processing system in real time through the ground-air data link, so that relevant personnel can provide accurate and efficient monitoring services. [0003] The core technologies of the ADS-B system include: GNSS and ground-to-air / air-to-air data links. Throughout the world, most of the ADS-B GNSS signal sources currently used are GPS navigation signal sources, and only a few systems use Glonass as a backup navigatio...

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): H04B7/185
CPCH04B7/18502H04B7/18506H04B7/18515
Inventor 林琳刘志勇刘引川周跃飞
Owner CIVIL AVIATION FLIGHT UNIV OF CHINA
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