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1. WO2000041000 - CLOSE/INTRA-FORMATION POSITIONING COLLISION AVOIDANCE SYSTEM AND METHOD

Publication Number WO/2000/041000
Publication Date 13.07.2000
International Application No. PCT/US1999/029322
International Filing Date 09.12.1999
Chapter 2 Demand Filed 10.07.2000
IPC
G01S 13/93 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
13Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
88Radar or analogous systems, specially adapted for specific applications
93for anti-collision purposes
CPC
G01C 23/00
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
23Combined instruments indicating more than one navigational value, e.g. for aircraft; Combined measuring devices for measuring two or more variables of movement, e.g. distance, speed, acceleration
G01S 13/933
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
13Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
88Radar or analogous systems specially adapted for specific applications
93for anti-collision purposes
933of aircraft or spacecraft
Applicants
  • L-3 COMMUNICATIONS CORPORATION [US/US]; 21111 N. 19th Ave. Phoenix, AZ 85027-2708, US
Inventors
  • FRAZIER, James, A., Jr.; US
  • JONGSMA, Kenneth, R.; US
  • STURDY, James, T.; US
Agents
  • BACHAND, William, R.; Squire, Sanders & Dempsey L.L.P. Two Renaissance Square 40 North Central Avenue, Suite 2700 Phoenix, AZ 85004, US
  • CRISS, Roger, H.; Honeywell, Inc. 101 Columbia Road P.O. Box 2245 Morristown, NJ 07962-2245, US
Priority Data
09/223,53330.12.1998US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CLOSE/INTRA-FORMATION POSITIONING COLLISION AVOIDANCE SYSTEM AND METHOD
(FR) SYSTEME ET PROCEDE DESTINES A EVITER DES COLLISIONS DANS LE POSITIONNEMENT D'UNE FORMATION SERREE A L'INTERIEUR D'UNE ZONE
Abstract
(EN)
A passive Traffic Alert and Collision Avoidance System (TCAS) and method is based on receiving and processing Mode-S transponder messages without the TCAS computer having to interrogate the transponders of the respective aircraft flying in formation (i.e., a passive TCAS). A TCAS computer and Mode-S transponder are used to provide distributed intra-formation control among multiple cells of aircraft flying in formation or close-in. The Mode-S transponder provides ADS-B Global Positioning System (GPS) squitter data to the TCAS computer; the TCAS computer receives and processes the data without having to interrogate the transponders of the multiple cells of aircraft. The method and system allow a safe separation between 2 to 250 aircraft flying in formation at selectable ranges.
(FR)
L'invention concerne un système et un procédé de surveillance du trafic et d'évitement des collisions (TCAS), basés sur la réception et le traitement de messages provenant du répondeur d'identification à mode S, sans que l'ordinateur du système TCAS ait à interroger les répondeurs d'identification des avions volant en formation (c'est-à-dire un système TCAS passif). On utilise un ordinateur de système TCAS et un répondeur d'identification à mode S pour fournir des commandes réparties à l'intérieur d'une formation, parmi les multiples cellules d'avions volant en formation ou en formation rapprochée. Le répondeur d'identification en mode S fournit des données «squitter», ou de système global de positionnement (GPS), ou de radiodiffusion ADS-B, à l'ordinateur du système TCAS. Cet ordinateur reçoit et traite les données sans avoir à interroger les répondeurs d'identification des cellules de l'avion. Ce procédé et ce système permettent une séparation sûre entre 2 et 250 avions volant en formation, à des distances pouvant être choisies.
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