The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 02, 2008
Filed:
Nov. 30, 2004
Conrado Rivas, Savedalen, SE;
Patrik Rivas, Alingsas, SE;
Anders Hook, Hindas, SE;
Telefonaktiebolaget L M Ericsso (Publ), Stockholm, SE;
Abstract
The invention discloses a radar system () for the detection of low RCS-objects () such as forest fires, said system comprising a first plurality of stations () for transmitting radar energy, said stations having mechanically fixed antennas (), and a second plurality of receive stations () for receiving reflections of radar energy transmitted from the transmit stations, said stations having mechanically fixed antennas (). The antennas () of said transmit and receive stations have a main beam () 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.