US2002021536 RADAR APPARATUS AND METHOD FOR DETECTING SMALL SLOW MOVING TARGETS

1. (WO2003007013) RADAR APPARATUS AND METHOD FOR DETECTING SMALL SLOW MOVING TARGETS

Notices

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Latest bibliographic data on file with the International Bureau

Pub. No.:	WO/2003/007013	International Application No.:	PCT/US2002/021536
Publication Date:	23.01.2003	International Filing Date:	09.07.2002
Chapter 2 Demand Filed:	27.01.2003

IPC:

G01S 7/35 (2006.01), G01S 13/536 (2006.01), G01S 13/88 (2006.01)

Applicants:

LAWLESS, James, C. [US/US]; (US)

Inventors:

LAWLESS, James, C.; (US)

Agent:

MOSER, Raymond R., Jr.; Moser, Patterson & Sheridan, LLP, 595 Shrewsbury Avenue, Suite 100, Shrewsbury, NJ 07702 (US)

Priority Data:

60/305,318		13.07.2001		US
10/090,898		05.03.2002		US

Title

(EN) RADAR APPARATUS AND METHOD FOR DETECTING SMALL SLOW MOVING TARGETS
(FR) APPAREIL DE RADAR ET PROCEDE DE DETECTION DE PETITES CIBLES LENTES

Abstract:

(EN)The balanced bridge radar system (100) is a continuous wave radar system for detecting items that are very small. The balanced bridge radar (100) includes a microwave energy generator (102), transformer (104), a line stretcher (106), a transmitter antenna (108), a receiving antenna (110), and a mixer (112). The mixer (112) is a direct current coupled microwave mixer. The line stretcher (106) is a microwave phase shifter that can adjust the signal delay from zero to one-quarter wavelenght at the operating frequency.
(FR)L'invention concerne un procédé et un appareil de détection radar de petites cibles lentes en la présence d'un fort écho parasite de fond comprenant une structure de pont équilibrée destinée à obtenir un équilibrage avec la cible et l'écho parasite de fond. Les signaux de retour du radar provenant des objets de fond ainsi que les cibles sont visualisés par le radar sous la forme d'un retour de signature unique composite. L'invention utilise un déphaseur pour obtenir un équilibrage même si l'écho parasite de fond comprend de nombreuses composantes à des distances variables du radar.

Designated States:

AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CR, CU, CZ, DE, DK, DM, DZ, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, UZ, VN, YU, ZA, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).

Publication Language:	English (EN)
Filing Language:	English (EN)

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