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Quadratic radar

A secondary radar, channel technology, used in electrical components, substantially flat resonant components, instruments, etc.

Pending Publication Date: 2021-10-22
THALES SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, acquisition costs, infrastructure costs, ownership costs and network costs must be considered

Method used

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Examples

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Embodiment Construction

[0048] In order to reduce the various costs mentioned in the background art, the present invention proposes a given system, which will be called a full-duplex meta secondary sensor (full-duplex meta secondary sensor), which will be as follows: All activities are grouped together:

[0049] - Conventional secondary radar: ensures simultaneous mode surveillance of aircraft according to SSR and Mode S protocols;

[0050] - IFF interrogator, ensuring identification of aircraft according to Mode 4 and Mode 5 protocols;

[0051] - asynchronous receiver of extended ADS-B message (DF17 / 18);

[0052] - asynchronous receivers of mode 5 class 2 messages;

[0053] It also utilizes the same antenna structure (spin, antenna, motor, swivel, and cables, etc.) and the same infrastructure.

[0054] Therefore, in the context of resources common to these various activities within a meta-quadratic sensor, the approach to the solution provided by the present invention is to exploit the specificit...

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PUM

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Abstract

The invention relates to a quadratic radar. The radar comprises an antenna having a radiation pattern forming a sum channel SUM, a radiation pattern forming a difference channel DIFF, and a pattern forming a control channel CONT, a first transmit-receive chain (4) associated with the SUM channel, a second transmit-receive chain (4') associated with the CONT channel, and a receive channel (4'') associated with the DIFF channel. Each of the transmit-receive chains (4, 4') is capable of simultaneous transmission and reception, the transmit chain (401) comprising a filtering operation (4A, 4B) for filtering a signal transmitted at 1090 MHz and the receive chain (402) comprising a filtering operation (4C, 4D) for filtering a signal transmitted at 1030 MHz such that the chains operate independently of one another.

Description

technical field [0001] The present invention relates to the field of air traffic control (ATC). Background technique [0002] Currently, air control is mainly based on secondary radar, whose detection reliability is widely recognized, and secondary radar ensures synchronous mode surveillance of aircraft according to SSR and Mode S protocols. In addition, asynchronous reception of extended ADS-B (Automatic Dependent Surveillance-Broadcast) messages (squitter) is used in ground ATC, extended ADS-B messages are provided to ensure collision avoidance onboard aircraft (TCAS: Traffic Alert and Collision Avoidance System ), thus providing part of the interactive monitoring system. [0003] This surveillance can be combined with surveillance of the IFF (Identification Friend or Foe) type, with IFF interrogators ensuring the identification of the aircraft according to various military protocols. [0004] Within a single structure grouping these sensors together, the operational use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/74G01S13/91G01S7/02
CPCG01S13/782H01Q25/02H01Q25/005H01Q21/28G01S13/751G01S13/91G01S7/022G01S13/762G01S7/034G01S7/038G01S7/2813G01S13/781G01S7/032H01Q21/065H01Q9/0407H01Q3/36H01Q1/247
Inventor 菲利普·比约西尔万·科林菲利普·乔利
Owner THALES SA