US3946384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Missile guidance by radar signals using surface acoustic wave correlator
Assignee: United States Department of the Navy
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Filing: 1971-01-21
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Granted: 1976-03-23
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Expires: 1991-01-21
Abstract
Abstract A system for controlling the flight of a missile by the use of coded radar signals. A ground level radar transmits coded signals in the form of a phase modulated radar signal. Each coded signal represents a particular guidance command which is received by the missile and "filtered" out of the radar signal by a surface acoustic wave correlator. The correlator detects the code in the signal and in turn energizes a control circuit which operates a control surface on the missile.
Inventors
- 👤 Thomas A. Westaway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:19
CPC Classifications
F; F41; F41G; F41G7/00; G; G01; G01S; G01S13/00; G01S13/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
91 words
A remote control system for guiding a missile comprising: a radar system including means for transmitting phase-coded command signals, one phase-coded signal for each command; means installed in the missile for receiving said command signals; means for decoding the command signal, said decoding means comprising a plurality of surface-acoustic-wave correlators, one correlator for each command signal, and means for deciphering the output of the correlators to determine which of the correlators produced a response; and, means for operating a control surface on the missile in response to the decoded command signal.
Claim 2
Dependent Claim
91 words
A remote control system for guiding a missile comprising: a radar system including means for transmitting phase-coded command signals, one phase-coded signal for each command; means installed in the missile for receiving said command signals; means for decoding the command signal, said decoding means comprising a plurality of surface-acoustic-wave correlators, one correlator for each command signal, and means for deciphering the output of the correlators to determine which of the correlators produced a response; and, means for operating a control surface on the missile in response to the decoded command signal.
Claim 3
Dependent Claim
40 words
The control system of claim 1 wherein said transmitting means includes: a phase reversal pulse modulator for generating the phase coded command signals; and signal coding means for energizing said pulse modulator, one signal coding means for each command signal.
Claim 4
Dependent Claim
21 words
The control system of claim 2 wherein the signal coding means is comprised of a plurality of surface wave acoustic correlators.
Claim 5
Dependent Claim
32 words
The control system of claim 1 wherein the radar system includes means for receiving part of the command signal energy which is reflected by the missile and for producing missile position information.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-23 | 1979-09-22 | 1980-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-23 | 1983-09-22 | 1984-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-23 | 1987-09-22 | 1988-03-23 | $7700.00 | Window Closed / Lapsed |