Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1978-01-17
1979-04-03
Wilbur, Maynard R.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343 74, 343 73, 343 16M, 235409, 235410, 235411, 250203R, 356152, G01S 922, G01S 962, G01S 966
Patent
active
041480260
ABSTRACT:
A system for tracking a moving target from a moving carrier. The system is provided with an arrangement allowing a measurement of the position of the target in relation to the carrier. The difference between the position of the target and an estimated position for the latter is given by this arrangement, generally in spherical co-ordinates. These spherical co-ordinates are changed by a co-ordinates converting unit into cartesian co-ordinates. The position of the target is given in turn in relation to a cartesian frame of reference of unvarying orientation whose origin is situated close to the instantaneous centre of rotation of the carrier in relation with a trajectory simulator. The frame of reference is then changed in the opposite direction for a control of the position of the measuring arrangement.
REFERENCES:
patent: 3123822 (1964-03-01), Shelley et al.
patent: 3223996 (1965-12-01), Voles
patent: 3368217 (1968-02-01), Musso
patent: 3680086 (1972-07-01), Valstar
patent: 3705936 (1972-12-01), Wilmot et al.
patent: 3750174 (1973-07-01), Belluck
patent: 3798425 (1974-03-01), Heard et al.
patent: 3821738 (1974-06-01), Quesinberry et al.
patent: 3952304 (1976-04-01), Broniwitz et al.
"Thomson-CSF"
Goodwin Lawrence
Wilbur Maynard R.
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