G - Physics – 01 – S
Patent
G - Physics
01
S
349/34, 343/51
G01S 7/04 (2006.01)
Patent
CA 1251544
ABSTRACT The invention is primarily addressed to the pro- blems relating to the detection and identification of vessels against the sea surface. A radar sensor connected to powerful data processing equipment can give a monitoring capability having been impossible hitherto,by employing optimal radar structures and signal processing algorithms. There is described which functions which may be operated independently on the transmitter side and the receiver side. De- pending upon the purpose such a radar may be appli- cable for: - searching for vessels - searching for wake traces - simultaneous searching for vessels and accom- panying wake traces - tracking vessels and wake traces - identifying vessels based upon various filters. As a consequence of the data control such a radar or possibly a corresponding sonar system may be able to reconfigurate as needed, which involves that the requirement for signal processing is reduced and the utilization of the resources improved. In order to form an interference pattern corres- ponding to the object or objects to be detected, trans- mitter means and/or receiver means in the system com- prise two or more apertures (7A, 7B, 8A, 8B) for the coherent transmission and reception respectively of waves, the mutual distance between these apertures being larger than one wavelength of the waves trans- mitted.
499035
Gjessing Dag K.t.
Hjelmstad Jens F.
Fetherstonhaugh & Co.
Norges Teknisk-Naturvitenskapelige Forskningsrad
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