Patent US5632752A successfully refreshed from Google Patents.
US4501399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hybrid monopulse/sequential lobing beamrider guidance
Assignee: United States Department of the Army
•
Filing: 1981-07-20
•
Granted: 1985-02-26
•
Expires: 2001-07-20
Abstract
Abstract The method uses a combination monopulse and sequential lobing system to guide a vehicle, such as a missile, aircraft, auto, etc., toward a target. The target is tracked with conventional monopulse techniques while at the same time the vehicle is provided with coded data forming a cluster so as to provide spatial resolution information. The vehicle sequentially receives this information, stores the information until the sequence is complete and processes the information for guidance.
Inventors
- 👤 Jester M. Loomis, III
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:09
CPC Classifications
H; H01; H01Q; H01Q25/00; H01Q25/02; F; F41; F41G; F41G7/00; F41G7/20; F41G7/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A beamrider guidance system for guiding a guided device toward a target; said system having multiple transmitting and receiving antenna means which are spatially offset from each other; the improvement comprising a method having the steps of transmitting a plurality of different coded radar signals sequentially by said antenna means towards said target and said guided device; selecting the number of coded radar signals to be equal to the number of antenna means such that each antenna means will always transmit the same coded radar signal; receiving and processing said signals by the guided device so as to provide guidance about a center position of all of the coded radar signals; utilizing reflected signals off said target from each of the coded radar signals to position said antenna means toward said target; utilizing a four-horn antenna feed for the multiple antenna means; and supplying the different coded radar signal to the horn feeds for transmission.
Claim 2
Dependent Claim
155 words
A beamrider guidance system for guiding a guided device toward a target; said system having multiple transmitting and receiving antenna means which are spatially offset from each other; the improvement comprising a method having the steps of transmitting a plurality of different coded radar signals sequentially by said antenna means towards said target and said guided device; selecting the number of coded radar signals to be equal to the number of antenna means such that each antenna means will always transmit the same coded radar signal; receiving and processing said signals by the guided device so as to provide guidance about a center position of all of the coded radar signals; utilizing reflected signals off said target from each of the coded radar signals to position said antenna means toward said target; utilizing a four-horn antenna feed for the multiple antenna means; and supplying the different coded radar signal to the horn feeds for transmission.
References Cited (Backward Citations)
US2421663A
Cited
US3274592A
Cited
US3351941A
Cited
US3623094A
Cited
US4030686A
Cited
US4136343A
Cited
US4319242A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-02-26 | 1988-08-27 | 1989-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-26 | 1992-08-27 | 1993-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-26 | 1996-08-27 | 1997-02-26 | $7700.00 | Window Closed / Lapsed |