JPS6488278A - Radar receiver - Google Patents
Radar receiverInfo
- Publication number
- JPS6488278A JPS6488278A JP62246283A JP24628387A JPS6488278A JP S6488278 A JPS6488278 A JP S6488278A JP 62246283 A JP62246283 A JP 62246283A JP 24628387 A JP24628387 A JP 24628387A JP S6488278 A JPS6488278 A JP S6488278A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- circuits
- output signals
- maximum value
- outputs
- 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
Abstract
PURPOSE:To suppress the occurrence of a false signal and to simplify detection processing of a real target, by providing a maximum value detecting circuit and an video average circuit in the rear stage of a CFAR (Constant False Alarm Rate) processing circuit. CONSTITUTION:Doppler frequency component extraction circuits 2-1-2-N extract and form output signals for a plurality of Doppler frequency components different from one another respectively from reception signals within a prescribed azimuth angle range and of the same distance. CFAR processing circuits 3-1-3-N suppress unnecessary signals out of the output signals of the circuits 2-1-2-N corresponding thereto. A video average circuit 4 receives outputs of the circuits 3-1-3-N and calculates an amplitude average value of all the output signals of the same distance. A maximum value detecting circuit 5 receives the outputs of the circuits 3-1-3-N and determines the maximum value of the output signals of the same distance. Outputs of the circuits 4 and 5 are given to a video selection circuit 7, and the circuit 7 selects the output of the circuit 4 in a prescribed limited area wherein the unnecessary signal is present, while selecting the output of the circuit 5 in an area wherein the unnecessary signal is not present, under the control of a control circuit 6a.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62246283A JPS6488278A (en) | 1987-09-30 | 1987-09-30 | Radar receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62246283A JPS6488278A (en) | 1987-09-30 | 1987-09-30 | Radar receiver |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6488278A true JPS6488278A (en) | 1989-04-03 |
Family
ID=17146240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62246283A Pending JPS6488278A (en) | 1987-09-30 | 1987-09-30 | Radar receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6488278A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4137532A (en) * | 1977-04-29 | 1979-01-30 | Westinghouse Electric Corp. | VIP doppler filter bank signal processor for pulse doppler radar |
JPS60128381A (en) * | 1983-12-15 | 1985-07-09 | Nec Corp | Radar signal processor |
-
1987
- 1987-09-30 JP JP62246283A patent/JPS6488278A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4137532A (en) * | 1977-04-29 | 1979-01-30 | Westinghouse Electric Corp. | VIP doppler filter bank signal processor for pulse doppler radar |
JPS60128381A (en) * | 1983-12-15 | 1985-07-09 | Nec Corp | Radar signal processor |
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