IT1106337B - Dispositivo di eliminazione degli echi fissi piu particolarmente associato ad un sistema radar e sistema che lo comprende - Google Patents

Dispositivo di eliminazione degli echi fissi piu particolarmente associato ad un sistema radar e sistema che lo comprende

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
English (en)
Italian (it)
Other versions
IT7851989A0 (it
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/it
Application granted granted Critical
Publication of IT1106337B publication Critical patent/IT1106337B/it

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 Dispositivo di eliminazione degli echi fissi piu particolarmente associato ad un sistema radar e sistema che lo comprende IT1106337B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7735043A FR2409521A1 (fr) 1977-11-22 1977-11-22 Dispositif d'elimination des echos fixes, plus particulierement associe a un systeme radar et systeme radar le comprenant

Publications (2)

Publication Number Publication Date
IT7851989A0 IT7851989A0 (it) 1978-11-21
IT1106337B true IT1106337B (it) 1985-11-11

Family

ID=9197892

Family Applications (1)

Application Number Title Priority Date Filing Date
IT51989/78A IT1106337B (it) 1977-11-22 1978-11-21 Dispositivo di eliminazione degli echi fissi piu particolarmente associato ad un sistema radar e sistema che lo comprende

Country Status (4)

Country Link
DE (1) DE2850508C2 (un)
FR (1) FR2409521A1 (un)
GB (1) GB2011749B (un)
IT (1) IT1106337B (un)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2467412A1 (fr) * 1979-10-10 1981-04-17 Thomson Csf Dispositif numerique de detection de cibles par radar
NL7908860A (nl) * 1979-12-10 1981-07-01 Hollandse Signaalapparaten Bv Drempelschakeling voor radarvideosignalen.
DE3127065A1 (de) * 1981-07-09 1983-01-27 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zur unterdrueckung von stoerechos bei radaranlagen und anordnung zur durchfuehrung des verfahrens
DE3209399A1 (de) * 1982-03-16 1983-09-29 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren und anordnung zur verbesserung des signal-stoer-verhaeltnisses bei radaranlagen
DE3213430A1 (de) * 1982-04-10 1983-10-20 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren und anordnung zur zielerkennung und stoersignalunterdrueckung in radargeraeten
DE3933437A1 (de) * 1989-10-06 1991-04-18 Diehl Gmbh & Co Rueckstrahlortungsanlage
DE102005023787A1 (de) * 2005-05-19 2006-11-23 Selex Sistemi Intergrati Gmbh Verfahren und Vorrichtung zum Korrigieren von Wetterdaten sowie Computerprogrammprodukt

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1245452B (de) * 1965-06-02 1967-07-27 Int Standard Electric Corp Radaranlage mit Anzeigeverminderung von laengeren Festzielechos
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 (nl) * 1976-09-06 1984-07-16 Hollandse Signaalapparaten Bv Inrichting voor het opwekken van de regelspanning voor de automatische sterkteregeling van een impulsradarapparaat.
FR2377640A1 (fr) * 1977-01-18 1978-08-11 Thomson Csf Dispositif de stabilisation du taux de fausses alarmes dans un radar et systeme radar comportant un tel dispositif

Also Published As

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

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