US4215347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Target seeker simulator
Assignee: United States Department of the Navy
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Filing: 1978-11-15
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Granted: 1980-07-29
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Expires: 1998-11-15
Abstract
Abstract An incoming enemy missile is simulated by pointing the radiation transmitg antenna of a drone missile, regardless of the actual movement of the drone, at the launch site of a friendly intercept missile or other friendly object without changing direction of flight.
Inventors
- 👤 Edward C. Jarrell
- 👤 Donald R. Marlow
- 👤 Howard B. Tetens
- 👤 Joseph F. Gulick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:18
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/02; G01S3/14; G01S3/28; G01S3/32; G01S3/325; F; F41; F41G; F41G7/00; F41G7/001; F41G7/002; F41G7/003; G01S3/023; G01S3/026
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
110 words
A target seeker simulator system comprised of: a drone missile having means for transmitting an output signal, and means for directing the output signal of the transmitting means at the target while the drone missile is in flight, wherein the output signal directing means comprises: means, located proximate to the target, for generating a beacon signal aimed at the drone missile, means, provided on the drone missile, for receiving the beacon signal, an antenna comprising the transmitting means and beacon signal receiving means, and means for reorienting the antenna in response to the received beacon signal, and diplexer means for simultaneously transmitting the output signal and receiving the beacon signal.
Claim 2
Dependent Claim
110 words
A target seeker simulator system comprised of: a drone missile having means for transmitting an output signal, and means for directing the output signal of the transmitting means at the target while the drone missile is in flight, wherein the output signal directing means comprises: means, located proximate to the target, for generating a beacon signal aimed at the drone missile, means, provided on the drone missile, for receiving the beacon signal, an antenna comprising the transmitting means and beacon signal receiving means, and means for reorienting the antenna in response to the received beacon signal, and diplexer means for simultaneously transmitting the output signal and receiving the beacon signal.
Claim 3
Dependent Claim
95 words
A target seeker simulator system as in claim 1, wherein the antenna further comprises: an antenna array having an axis of directivity, said antenna array being comprised of elements all of which receive the beacon signal and transmit the output signal, and wherein the target seeker simulator system further comprises: means for combining the signals received at the elements to produce azimuth and elevation difference signals, which reflect the different signals received by the elements when the axis of directivity is noncoincident with the direction toward the beacon signal generating means indicating a tracking error.
Claim 4
Dependent Claim
41 words
A target seeker simulator system, as in claim 2, wherein the means for reorienting the antenna further comprises: means, connected to the antenna array, for repositioning the axis of directivity of the antenna array to align with the beacon signal direction.
Claim 5
Dependent Claim
83 words
A target seeker simulator system, as in claim 3, further comprising: means, connected to the output of the signal combining means, for multiplexing the azimuth and elevation difference signals onto a single channel, means for normalizing the multiplexed azimuth and elevation difference signals, and means for demultiplexing the signals outputted from the normalizing means and detecting the tracking error based on the difference signals, thereby recovering normalized azimuth and elevation error signals which are provided to the antenna array repositioning means as inputs.
Claim 6
Dependent Claim
19 words
A target seeker simulator system, as in claim 4, wherein normalizing means comprises amplifier means for automatic gain control.
Claim 7
Dependent Claim
25 words
A target seeker simulator system as in claim 4, further comprising: means for time correlating the operation of the multiplexing means and the demultiplexing means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-07-29 | 1984-01-28 | 1984-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-29 | 1988-01-28 | 1988-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-29 | 1992-01-28 | 1992-07-29 | $7700.00 | Window Closed / Lapsed |