LOBING SYSTEM
Assignee
Filed
Jan 29, 1982
Granted
Mar 3, 1992
Location
Abstract
The radar system includes a sum and difference network coupled to a conventional monopulse type antenna. The difference signals or error signals are applied into a modulator in space quadrature with electrical vectors in a direction transverse to the direction of propagation polarized at right angles to each other. A rotating magnetic field in the modulator causes any energy that is in line with this field to be continually rotated and applied to a coupler that is sensitive. During search the shutter is closed so that only unmodulated sum energy is passed through the circulator to the receiving unit. For tracking the shutter is opened and the reflecting post is positioned to reflect a selected portion of the error signal energy and pass a selected portion of the sum signal energy, both of which are absorbed in the isolator. The system provides a simplified selection of the lobing frequency by controlling the velocity of the rotating magnetic field at the modulator. The system also operates in a terrain avoidance mode by properly controlling the modulator.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Jan 29, 1982
Rescinded
Jun 14, 1989
Duration
7 years, 4 months
Inventor
- 1Unknown Unknown
Record Details
- Patent number
- US 5093666
- Application
- 04249557
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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