US3604828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radar-jamming technique
Assignee: United States Department of the Navy
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Filing: 1965-04-27
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Granted: 1971-09-14
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Expires: 1985-04-27
Abstract
Abstract This invention relates to a radar simulator, and more particularly to a radar-jamming simulator. In order to properly train radar operators in the techniques of operating their radar sets in battle conditions, it is necessary to provide them with training recognition of radar jamming, and the appropriate counter measure techniques to employ in the presence of jamming. To do this it is necessary, in the most preferred form, to provide jamming simulation equipment in association with an operational radar set. This jamming simulation equipment would include means to determine when the antenna of the radar is looking at an actual or simulated target which is to be interrogated or intercepted and to supply the desired simulated jamming effects. It is also necessary to display the simulated jamming signals on the operational radar scope or on a simulated radar scope, so that a radar operator may be able to learn how to apply proper defensive measures to minimize the effects of jamming on his radar scope. Various effects are simulated by such jamming simulation equipment including noise and pulse modulation forms of jamming. Additionally, in order to more realistically simulate jamming operating conditions, receiver blocking and magnetron tuning operations by the radar operator, are also simulated.
Inventors
- 👤 Joseph F Perkovich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:25
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/40; G01S7/4052; G01S7/4082
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
110 words
A radar-jamming simulator, utilized with a radar means, which when supplied with electrical information signals whose magnitudes are proportional to the angular position of a simulated target with respect to the angular position of a simulated antenna, provides realistic jamming and jamming countermeasure simulation, comprising: first means for receiving said electrical information signals and for producing a gating control signal when the simulated antenna is on target; jamming means, for producing simulated radar-jamming signals; gating means, coupled to said first means and said jamming means, for gating simulated radar-jamming signals by said gating control signal; and control means, coupled to said gating means, for controlling the output simulated radar-jamming signals.
Claim 2
Dependent Claim
110 words
A radar-jamming simulator, utilized with a radar means, which when supplied with electrical information signals whose magnitudes are proportional to the angular position of a simulated target with respect to the angular position of a simulated antenna, provides realistic jamming and jamming countermeasure simulation, comprising: first means for receiving said electrical information signals and for producing a gating control signal when the simulated antenna is on target; jamming means, for producing simulated radar-jamming signals; gating means, coupled to said first means and said jamming means, for gating simulated radar-jamming signals by said gating control signal; and control means, coupled to said gating means, for controlling the output simulated radar-jamming signals.
Claim 3
Dependent Claim
32 words
The device as in claim 1, in combination with; detuning means connected to said control means and gating means, for simulated antijamming by simulating changing the operating conditions of the radar means.
Claim 4
Dependent Claim
23 words
The device as in claim 2, in combination with; blocking means, coupled to said detuning and contrOl means, for producing simulated receiver blocking.
Claim 5
Dependent Claim
102 words
A radar-jamming simulator utilized with a radar means, which when supplied with the electrical information signals whose magnitudes are proportional to the angular position of a simulated target with respect to the angular position of a simulated antenna, provides realistic jamming and jamming countermeasure simulation, comprising: first means for producing noise and pulse video signals to simulate jamming conditions; gating means, connected to said first means for gating the simulated radar-jamming signals when said simulated antenna is on-target, said gating means having an output; and tuning and blocking means, coupled to said gating means output, for controlling the output simulated radar-jamming signals.
Claim 6
Dependent Claim
102 words
A radar-jamming simulator utilized with a radar means, which when supplied with the electrical information signals whose magnitudes are proportional to the angular position of a simulated target with respect to the angular position of a simulated antenna, provides realistic jamming and jamming countermeasure simulation, comprising: first means for producing noise and pulse video signals to simulate jamming conditions; gating means, connected to said first means for gating the simulated radar-jamming signals when said simulated antenna is on-target, said gating means having an output; and tuning and blocking means, coupled to said gating means output, for controlling the output simulated radar-jamming signals.
Claim 7
Dependent Claim
17 words
The device as in claim 4, wherein said tuning and blocking means includes, a controllable amplifier means.
Claim 8
Dependent Claim
31 words
The device as in claim 5, in combination with; range means, coupled to said controllable amplifier means, for providing an output signal which is proportional, in magnitude, to the simulated range.
Claim 9
Dependent Claim
56 words
The device as in claim 1, wherein said first means includes, a plurality of channels, one of which channels comprises means for determining when said simulated target is within the simulated antenna''s main lobe, and another of said plurality of channels, comprises means for determining when said simulated target is within the simulated antenna''s side lobe.
Claim 10
Dependent Claim
31 words
The device as in claim 7, wherein each of said plurality of channels includes, comparator means, having a gate width proportional to the beam width of the simulated antenna lobe simulated.
References Cited (Backward Citations)
US3320349A
Cited
US3291885A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |