Communications: directive radio wave systems and devices (e.g. – Testing or calibrating of radar system – By monitoring
Reexamination Certificate
2006-08-07
2009-08-18
Tarcza, Thomas H (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Testing or calibrating of radar system
By monitoring
C342S165000, C342S029000
Reexamination Certificate
active
07576686
ABSTRACT:
In accordance with one aspect of the present invention, a method is provided for calibrating an aircraft surveillance system for a protected aircraft. The system has a phased antenna array comprising antenna elements. The method comprises transmitting a first signal from a first antenna element in the array, and receiving the first signal at a third antenna element. The first signal may represent an interrogation signal transmitted in connection with a surveillance transmit sequence to locate potential intruding aircraft into a range of the protected aircraft. The method further includes transmitting a second signal from a second antenna element and receiving the second signal at the third antenna element. The method also includes calculating calibration information for the antenna array based on the first and second signals received at the third antenna element. During each transmit operation only a single antenna element transmits at one point in time.
REFERENCES:
patent: 2489304 (1949-11-01), Marchand et al.
patent: 3212089 (1965-10-01), Longacre et al.
patent: 3500303 (1970-03-01), Johnson
patent: 3697876 (1972-10-01), Robbins et al.
patent: 3787863 (1974-01-01), Watanabe et al.
patent: 3789408 (1974-01-01), Ichihara et al.
patent: 3824595 (1974-07-01), Hall
patent: 3878381 (1975-04-01), Broder et al.
patent: 3887923 (1975-06-01), Hendrix
patent: 3890617 (1975-06-01), Moulton
patent: 3927406 (1975-12-01), Bruder
patent: 3935575 (1976-01-01), Leisterer et al.
patent: 3973262 (1976-08-01), Böhm
patent: 4000466 (1976-12-01), Scouten et al.
patent: 4090199 (1978-05-01), Archer
patent: 4123759 (1978-10-01), Hines et al.
patent: 4203114 (1980-05-01), Gerst et al.
patent: 4209791 (1980-06-01), Gerst et al.
patent: 4333170 (1982-06-01), Mathews et al.
patent: 4366483 (1982-12-01), Hagedon et al.
patent: 4488155 (1984-12-01), Wu
patent: 4591862 (1986-05-01), Parkhurst et al.
patent: 4626859 (1986-12-01), Stansfield
patent: 4638320 (1987-01-01), Eggert et al.
patent: 4638321 (1987-01-01), Drogin
patent: 4639733 (1987-01-01), King et al.
patent: 4689623 (1987-08-01), Schwab et al.
patent: 4719465 (1988-01-01), Kuroda
patent: 4796031 (1989-01-01), Koki
patent: 4809012 (1989-02-01), Tong
patent: 4855748 (1989-08-01), Brandao et al.
patent: 4888593 (1989-12-01), Friedman et al.
patent: 4899157 (1990-02-01), Sanford et al.
patent: 4924232 (1990-05-01), Hudson et al.
patent: 4926184 (1990-05-01), Galati et al.
patent: 4947176 (1990-08-01), Inatsune et al.
patent: 4975710 (1990-12-01), Baghdady
patent: 4996532 (1991-02-01), Kirimoto et al.
patent: 5003314 (1991-03-01), Berkowitz et al.
patent: 5008844 (1991-04-01), Kyriakos et al.
patent: 5072224 (1991-12-01), Vebeke et al.
patent: 5122808 (1992-06-01), Kyriakos
patent: 5191349 (1993-03-01), Dinsmore et al.
patent: 5253188 (1993-10-01), Lee et al.
patent: 5263189 (1993-11-01), Kultgen et al.
patent: 5341145 (1994-08-01), Eckersten et al.
patent: 5469172 (1995-11-01), Schleder et al.
patent: 5541607 (1996-07-01), Reinhardt
patent: 5541608 (1996-07-01), Murphy et al.
patent: 5552788 (1996-09-01), Ryan et al.
patent: 5568154 (1996-10-01), Cohen
patent: 5589838 (1996-12-01), McEwan
patent: 5598437 (1997-01-01), Gourse
patent: 5604504 (1997-02-01), Nail
patent: 5619206 (1997-04-01), Cole, Jr. et al.
patent: 5657027 (1997-08-01), Guymon, II
patent: 5724047 (1998-03-01), Lioio et al.
patent: 5764187 (1998-06-01), Rudish et al.
patent: 5815117 (1998-09-01), Kolanek
patent: 5867535 (1999-02-01), Phillips et al.
patent: 5889491 (1999-03-01), Minter
patent: 5943010 (1999-08-01), Rudish et al.
patent: 6018644 (2000-01-01), Minarik
patent: 6054948 (2000-04-01), Dean
patent: 6064338 (2000-05-01), Kobayakawa et al.
patent: 6085151 (2000-07-01), Farmer et al.
patent: 6127966 (2000-10-01), Erhage
patent: 6169519 (2001-01-01), Holecek et al.
patent: 6204812 (2001-03-01), Fattouche
patent: 6236839 (2001-05-01), Gu et al.
patent: 6285313 (2001-09-01), Wahab et al.
patent: 6392598 (2002-05-01), Jones et al.
patent: 6433738 (2002-08-01), Kikuchi
patent: 6441783 (2002-08-01), Dean
patent: 6486839 (2002-11-01), Minter
patent: 6529820 (2003-03-01), Tomescu
patent: 6587069 (2003-07-01), Ringwald et al.
patent: 6587863 (2003-07-01), Gentile et al.
patent: 6611231 (2003-08-01), Crilly, Jr. et al.
patent: 6693588 (2004-02-01), Schlee
patent: 6727842 (2004-04-01), Schleder et al.
patent: 6778138 (2004-08-01), Purdy et al.
patent: 6778147 (2004-08-01), Sanada et al.
patent: 6792033 (2004-09-01), Maruta et al.
patent: 6795018 (2004-09-01), Gou
patent: 6999022 (2006-02-01), Vesel et al.
patent: 7098847 (2006-08-01), Li
patent: 2003/0142012 (2003-07-01), Hirabe
patent: 2007/0069945 (2007-03-01), Weese
http://embeddeddsp.embedded.com/showArticle.jhtml;jsessionid=XBDNFUFIRPSRWQSNDLPCKHSCJUNN2JVN?articleID=60401726; 10 pages; printed Aug. 7, 2006.
Interferometer Design for Evaluation Angle Estimation, IEEE Transactions on Aerospace and Electronic Systems, vol. AEX-13, No. 5, pp. 486-503 (Sep. 1977).
RJ Zavrel, RF Design, Mar. 1988, pp. 27-31.
Blessing John C.
Needham Edward W.
Galt Cassi
Garmin International, Inc.
Korte Samuel M.
Tarcza Thomas H
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