Communications: directive radio wave systems and devices (e.g. – Return signal controls radar system – Receiver
Reexamination Certificate
2004-11-30
2008-12-02
Tarcza, Thomas H. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Return signal controls radar system
Receiver
C342S036000, C342S059000, C342S159000
Reexamination Certificate
active
07460056
ABSTRACT:
The invention discloses a radar system (100) for the detection of low RCS-objects (110, 140, 150, 160, 190) such as forest fires, said system comprising a first plurality of stations (120) for transmitting radar energy, said stations having mechanically fixed antennas (220), and a second plurality of receive stations (130) for receiving reflections of radar energy transmitted from the transmit stations, said stations having mechanically fixed antennas (220). The antennas (220) of said transmit and receive stations have a main beam (221) which is essentially parallel to the ground, and at least a sub-set of the receive stations is equipped with means for recording a first and a second received signal, and means for subtracting one of said signals from the other of said signals. Said transmit and receive stations are arranged to function within the frequency range of 10-100 MHz.
REFERENCES:
patent: 3721978 (1973-03-01), Doggett, Jr.
patent: 4319243 (1982-03-01), Vachenauer et al.
patent: 5264855 (1993-11-01), Lammers et al.
patent: 5448243 (1995-09-01), Bethke et al.
patent: 5959589 (1999-09-01), Sadovnik
patent: 6304760 (2001-10-01), Thomson et al.
patent: 7196657 (2007-03-01), Walton
Griffiths, H.D. :From a Different Perspective Principles, Practice and Potential Bistatic Radar in: 2003 Proceedings of the International Conference on Radar, Adelaide, SA Australia Sep. 3-5, 2003, pp. 1-7, ISBN: 0-7803-7870-9.
Hook Anders
Rivas Conrado
Rivas Patrik
Burleigh Roger S.
Bythrow Peter M
Tarcza Thomas H.
Telefonaktiebolaget L M Ericsso (Publ)
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