Communications: directive radio wave systems and devices (e.g. – Directive – Utilizing correlation techniques
Patent
1996-01-11
1997-10-07
Blum, Theodore M.
Communications: directive radio wave systems and devices (e.g.,
Directive
Utilizing correlation techniques
342372, 342373, G01S 316, G01S 328
Patent
active
056753438
ABSTRACT:
This radiating-element array antenna has its radiating elements grouped together, in reception, in two sets of parallel linear sub-arrays imbricated and oriented in the two directions, namely the horizontal and vertical directions. It comprises two beam-shaping circuits each receiving the signals from one of the sets of linear sub-arrays and carrying out two reduced beam-shaping operations, one in the elevation plane and other in the relative bearing plane, and one output circuit delivering a reception signal from a non-linear combination, a product or convolution, of the two reduced beam-shaping signals generated by the beam-shaping circuits. This reception signal simulates the signal of an antenna with total beam-shaping in the two planes, namely the elevation and relative bearing planes.
REFERENCES:
patent: 4071848 (1978-01-01), Leeper
patent: 5084708 (1992-01-01), Champeau
patent: 5243352 (1993-09-01), Sezai
patent: 5296863 (1994-03-01), Sezai
patent: 5345246 (1994-09-01), Sezai
A. Ksienski, "Signal Processing Antennas", Microwave Journal, vol. 4, No. 10, Oct. 1961, pp. 77-85.
A Farina and R. Giusto, "Wide Deterministic Nulling By Means of Multiplicative Array Techniques", 11th European Microwave Conference--Proceedings, Sep. 7-11, 1981, pp. 805-812.
D.E.N. Davies, et al., "Low Sidelobe Patterns from Thinned Arrays Using Multiplicative Processing", IEEE Proceedings F. Communications, Radar & Signal Processing, vol. 127, No. 1, Feb. 1980, pp. 9-15.
"Thomson-CSF"
Blum Theodore M.
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