Mode S radar

Details Mode S radar Mode S radar

2009-01-16

2009-11-03

Tarcza, Thomas H (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Air traffic control

Secondary surveilance radar

C342S038000, C342S032000

Reexamination Certificate

active

07612705

ABSTRACT:
Disclosed is a Mode S radar which specifies an aircraft by transmitting interrogations to an aircraft A equipped with a Mode S transponder, and by then receiving and decoding replies corresponding to these interrogations. In the Mode S radar, detection reports on the aircraft A are generated in a manner that: for a Mode A code necessary for generating detection reports, when identicalness between the Mode A codes obtained in a plurality of scans after the initial acquisition of the aircraft A has been found to exist, the Mode A code thus found identical is adopted without carrying out a Mode A code interrogation (UF=5) thereafter. Accordingly, the Mode S secondary surveillance capable of generating more highly reliable detection reports is achieved.

REFERENCES:
patent: 7408498 (2008-08-01), Kuji et al.
patent: 2007-33408 (2007-02-01), None
Yoshio Hashida, et al., “Secondary Surveillance Radar for Air Traffic Control-SSR Mode S,” Toshiba Review, vol. 59, No. 2, 2004, pp. 58-61.
Fumiki Horikoshi, et al., “Modified ACAS RA downlink implementation plan in Japan,” ICAO Surveillance and Conflict Resolution Systems Panel (SCRSP) Working Group-B, WP/B/5-30-I, May 12-16, 2003, pp. 2-6 and 1 cover page.
Eurocontrol: “Principles of Mode S Operation and Interrogator Codes,” European Organisation for the Safety of Air Navigation, XP-002454133, Mar. 18, 2003, pp. I-IV and pp. 1-31.
P. Giustiniani, et al., “Improvements in code validation algorithms for Secondary Surveillance radar,” Radar 92 International Conference Brighton, XP-006514783, 1992, pp. 143-146.
M. C. Stevens, “Secondary Surveillance Radar” Secondary Surveillance Radar, Norwood, Artech House, XP-002454134, 1988, pp. 251-276.
Hashida Yoshio, et al., “Secondary Surveillance Radar for Air Traffic Control SSR Mode S,” Internet Citation, [Online], vol. 59, No. 2, XP-002440837, 2004, pp. 58-61.

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