IT1106337B - DEVICE FOR THE ELIMINATION OF FIXED ECHOS MORE PARTICULARLY ASSOCIATED WITH A RADAR SYSTEM AND SYSTEM THAT INCLUDES IT - Google Patents

DEVICE FOR THE ELIMINATION OF FIXED ECHOS MORE PARTICULARLY ASSOCIATED WITH A RADAR SYSTEM AND SYSTEM THAT INCLUDES IT

Info

Publication number
IT1106337B
IT1106337B IT51989/78A IT5198978A IT1106337B IT 1106337 B IT1106337 B IT 1106337B IT 51989/78 A IT51989/78 A IT 51989/78A IT 5198978 A IT5198978 A IT 5198978A IT 1106337 B IT1106337 B IT 1106337B
Authority
IT
Italy
Prior art keywords
elimination
particularly associated
radar system
echos
fixed
Prior art date
Application number
IT51989/78A
Other languages
Italian (it)
Other versions
IT7851989A0 (en
Original Assignee
Thomson Csf
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Thomson Csf filed Critical Thomson Csf
Publication of IT7851989A0 publication Critical patent/IT7851989A0/en
Application granted granted Critical
Publication of IT1106337B publication Critical patent/IT1106337B/en

Links

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)
IT51989/78A 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 IT1106337B (en)

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 IT7851989A0 (en) 1978-11-21
IT1106337B true 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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
GB2011749A (en) 1979-07-11
FR2409521B1 (en) 1982-10-22
GB2011749B (en) 1982-06-16
DE2850508C2 (en) 1985-01-03
DE2850508A1 (en) 1979-06-13
IT7851989A0 (en) 1978-11-21
FR2409521A1 (en) 1979-06-15

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