JPS6466583A - Radar apparatus - Google Patents
Radar apparatusInfo
- Publication number
- JPS6466583A JPS6466583A JP62224474A JP22447487A JPS6466583A JP S6466583 A JPS6466583 A JP S6466583A JP 62224474 A JP62224474 A JP 62224474A JP 22447487 A JP22447487 A JP 22447487A JP S6466583 A JPS6466583 A JP S6466583A
- Authority
- JP
- Japan
- Prior art keywords
- jamming
- frequency
- signal
- azimuth
- jamming signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Radar Systems Or Details Thereof (AREA)
Abstract
PURPOSE:To detect a jamming direction with respect to all of frequencies within a radar band, by mounting a jamming wave analyzing circuit for analyzing the rough azimuth and frequency of a jamming signal and a jamming direction detecting circuit for determining the beam number of the jamming signal direction. CONSTITUTION:An auxiliary antenna 21 receives the frequency and azimuth data of a jamming signal having fan beam wide within a vertical plane but narrow within a horizontal plane, and the frequency and azimuth data are analyzed by a jamming wave analyzing circuit 22. A reference signal generating circuit 19 sets a transmission pulse repeating cycle to one wherein a jamming observing time is added to the time necessary for the reception of a usual target signal and generates local oscillation frequency for making jamming signal frequency synchronous to said time. A jamming direction detecting circuit 20 determines the beam number showing the max. value in the jamming signal output of each beam within the vertical plane. By this constitution, the observation of a jamming signal in a band different from target searching frequency becomes possible and elevation can be also measured without limiting directional searching to the measurement of an azimuth direction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62224474A JPS6466583A (en) | 1987-09-08 | 1987-09-08 | Radar apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62224474A JPS6466583A (en) | 1987-09-08 | 1987-09-08 | Radar apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6466583A true JPS6466583A (en) | 1989-03-13 |
Family
ID=16814362
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62224474A Pending JPS6466583A (en) | 1987-09-08 | 1987-09-08 | Radar apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6466583A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0854457A (en) * | 1994-06-07 | 1996-02-27 | Nec Corp | Radar |
-
1987
- 1987-09-08 JP JP62224474A patent/JPS6466583A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0854457A (en) * | 1994-06-07 | 1996-02-27 | Nec Corp | Radar |
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