IT7851989A0 - BUT WHICH INCLUDES A FIXED ECHOE ELIMINATION DEVICE MOST PARTICULARLY ASSOCIATED WITH A RADAR SYSTEM AND - Google Patents
BUT WHICH INCLUDES A FIXED ECHOE ELIMINATION DEVICE MOST PARTICULARLY ASSOCIATED WITH A RADAR SYSTEM ANDInfo
- Publication number
- IT7851989A0 IT7851989A0 IT7851989A IT5198978A IT7851989A0 IT 7851989 A0 IT7851989 A0 IT 7851989A0 IT 7851989 A IT7851989 A IT 7851989A IT 5198978 A IT5198978 A IT 5198978A IT 7851989 A0 IT7851989 A0 IT 7851989A0
- Authority
- IT
- Italy
- Prior art keywords
- echoe
- fixed
- radar system
- elimination device
- particularly associated
- Prior art date
Links
- 230000008030 elimination Effects 0.000 title 1
- 238000003379 elimination reaction Methods 0.000 title 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/28—Details of pulse systems
- G01S7/285—Receivers
- G01S7/292—Extracting wanted echo-signals
- G01S7/2923—Extracting wanted echo-signals based on data belonging to a number of consecutive radar periods
- G01S7/2927—Extracting wanted echo-signals based on data belonging to a number of consecutive radar periods by deriving and controlling a threshold value
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
- G01S13/522—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves
- G01S13/524—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi
- G01S13/5246—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi post processors for coherent MTI discriminators, e.g. residue cancellers, CFAR after Doppler filters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/28—Details of pulse systems
- G01S7/285—Receivers
- G01S7/34—Gain of receiver varied automatically during pulse-recurrence period, e.g. anti-clutter gain control
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7735043A FR2409521A1 (en) | 1977-11-22 | 1977-11-22 | FIXED ECHO ELIMINATION DEVICE, MORE PARTICULARLY ASSOCIATED WITH A RADAR SYSTEM AND RADAR SYSTEM INCLUDING IT |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7851989A0 true IT7851989A0 (en) | 1978-11-21 |
IT1106337B IT1106337B (en) | 1985-11-11 |
Family
ID=9197892
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT51989/78A IT1106337B (en) | 1977-11-22 | 1978-11-21 | DEVICE FOR THE ELIMINATION OF FIXED ECHOS MORE PARTICULARLY ASSOCIATED WITH A RADAR SYSTEM AND SYSTEM THAT INCLUDES IT |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2850508C2 (en) |
FR (1) | FR2409521A1 (en) |
GB (1) | GB2011749B (en) |
IT (1) | IT1106337B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2467412A1 (en) * | 1979-10-10 | 1981-04-17 | Thomson Csf | Digital AGC circuit for radar target detector - has gain controlled from memorised signal from counter and digital integrator circuits |
NL7908860A (en) * | 1979-12-10 | 1981-07-01 | Hollandse Signaalapparaten Bv | THRESHOLD FOR RADAR VIDEO SIGNALS. |
DE3127065A1 (en) * | 1981-07-09 | 1983-01-27 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Method for suppressing noise echoes in radar installations and arrangement to carry out the method |
DE3209399A1 (en) * | 1982-03-16 | 1983-09-29 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Method and arrangement for improving the signal/noise ratio in radar systems |
DE3213430A1 (en) * | 1982-04-10 | 1983-10-20 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Method and arrangement for target recognition and noise signal suppression in radar sets |
DE3933437A1 (en) * | 1989-10-06 | 1991-04-18 | Diehl Gmbh & Co | Radar installation range and orientation determination - uses processors to determine range and orientation in conjunction with data reduction equipment to simplify final processing |
DE102005023787A1 (en) * | 2005-05-19 | 2006-11-23 | Selex Sistemi Intergrati Gmbh | Method and device for correcting weather data and computer program product |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1245452B (en) * | 1965-06-02 | 1967-07-27 | Int Standard Electric Corp | Radar system with display reduction of longer fixed target echoes |
US3786506A (en) * | 1972-03-10 | 1974-01-15 | Hughes Aircraft Co | Dynamic range control system |
US4058809A (en) * | 1972-06-26 | 1977-11-15 | Control Data Corporation | MTI system and method |
NL174675C (en) * | 1976-09-06 | 1984-07-16 | Hollandse Signaalapparaten Bv | DEVICE FOR GENERATING THE CONTROL VOLTAGE FOR THE AUTOMATIC STRENGTH CONTROL OF AN IMPULSE RADAR DEVICE. |
FR2377640A1 (en) * | 1977-01-18 | 1978-08-11 | Thomson Csf | DEVICE FOR STABILIZING THE RATE OF FALSE ALARMS IN A RADAR AND RADAR SYSTEM INCLUDING SUCH A DEVICE |
-
1977
- 1977-11-22 FR FR7735043A patent/FR2409521A1/en active Granted
-
1978
- 1978-11-21 IT IT51989/78A patent/IT1106337B/en active
- 1978-11-21 DE DE2850508A patent/DE2850508C2/en not_active Expired
- 1978-11-22 GB GB7845813A patent/GB2011749B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
IT1106337B (en) | 1985-11-11 |
GB2011749A (en) | 1979-07-11 |
GB2011749B (en) | 1982-06-16 |
DE2850508A1 (en) | 1979-06-13 |
FR2409521B1 (en) | 1982-10-22 |
DE2850508C2 (en) | 1985-01-03 |
FR2409521A1 (en) | 1979-06-15 |
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