NL160655B - Eliminatie-inrichting voor dichtbezette zones. - Google Patents

Eliminatie-inrichting voor dichtbezette zones.

Info

Publication number
NL160655B
NL160655B NL6804945.A NL6804945A NL160655B NL 160655 B NL160655 B NL 160655B NL 6804945 A NL6804945 A NL 6804945A NL 160655 B NL160655 B NL 160655B
Authority
NL
Netherlands
Prior art keywords
elimination device
closed areas
areas
closed
elimination
Prior art date
Application number
NL6804945.A
Other languages
English (en)
Other versions
NL160655C (nl
NL6804945A (nl
Original Assignee
Thomson Inf Et Visualisation T
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 Inf Et Visualisation T filed Critical Thomson Inf Et Visualisation T
Publication of NL6804945A publication Critical patent/NL6804945A/xx
Publication of NL160655B publication Critical patent/NL160655B/nl
Application granted granted Critical
Publication of NL160655C publication Critical patent/NL160655C/nl

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
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/18—Complex mathematical operations for evaluating statistical data, e.g. average values, frequency distributions, probability functions, regression analysis

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Theoretical Computer Science (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Operations Research (AREA)
  • Algebra (AREA)
  • Evolutionary Biology (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Bioinformatics & Computational Biology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar Systems Or Details Thereof (AREA)
NL6804945.A 1967-04-12 1968-04-08 Eliminatie-inrichting voor dichtbezette zones. NL160655C (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR102445A FR1527968A (fr) 1967-04-12 1967-04-12 Perfectionnements aux dispositifs éliminateurs de zones denses

Publications (3)

Publication Number Publication Date
NL6804945A NL6804945A (nl) 1968-10-14
NL160655B true NL160655B (nl) 1979-06-15
NL160655C NL160655C (nl) 1979-11-15

Family

ID=8628705

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6804945.A NL160655C (nl) 1967-04-12 1968-04-08 Eliminatie-inrichting voor dichtbezette zones.

Country Status (6)

Country Link
US (1) US3487405A (nl)
DE (1) DE1766173B1 (nl)
FR (1) FR1527968A (nl)
GB (1) GB1216406A (nl)
NL (1) NL160655C (nl)
SE (1) SE352450B (nl)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3680095A (en) * 1967-04-17 1972-07-25 Hughes Aircraft Co Automatic detection criteria control unit for pencil beam radars
US3611369A (en) * 1969-05-27 1971-10-05 Burroughs Corp Quantizer system with adaptive automatic clutter elimination
US3610901A (en) * 1969-09-09 1971-10-05 Emerson Electric Co Digital modified discrete fourier transform doppler radar processor
US3617719A (en) * 1970-03-11 1971-11-02 Us Air Force Staggered processing in digital or hybrid signal processors
US3946383A (en) * 1970-06-22 1976-03-23 The United States Of America As Represented By The Secretary Of The Navy Monopulse pulse width discriminator
FR2098514A5 (nl) * 1970-07-09 1972-03-10 Thomson Csf
IT950144B (it) * 1971-03-17 1973-06-20 Int Standard Electric Corp Sistema per l eliminazione della velocita degli echi di disturbo adattabile per un sistema digitale ad impulsi indicatore di bersagli mobili
US3761922A (en) * 1971-10-12 1973-09-25 Hughes Aircraft Co Digital mean level detector
US3795909A (en) * 1971-10-12 1974-03-05 North American Rockwell Terrain-following radar system
US3868688A (en) * 1973-06-21 1975-02-25 Us Navy High speed video track loop
US4062012A (en) * 1974-07-11 1977-12-06 The United States Of America As Represented By The Secretary Of The Navy Digital radar signal processor
US3995270A (en) * 1975-06-16 1976-11-30 The United States Of America As Represented By The Secretary Of The Navy Constant false alarm rate (CFAR) circuitry for minimizing extraneous target sensitivity
US3987440A (en) * 1975-07-16 1976-10-19 United Technologies Corporation Track while scan operation on scintillating point targets
DK140611B (da) * 1976-03-24 1979-10-08 Rovsing As Christian Apparat til detektering af ekkosignaler.
US4067012A (en) * 1976-08-25 1978-01-03 Hughes Aircraft Company Tracking feedback clutter mapper control device
US4115773A (en) * 1977-02-02 1978-09-19 Del Norte Technology, Inc. Synchronized pulse amplitude control for pulse measuring circuits
US4193118A (en) * 1978-07-18 1980-03-11 Motorola, Inc. Low pass digital averaging filter
US4233604A (en) * 1978-11-27 1980-11-11 Thomson-Csf Receiver with fixed-echo suppressor
NL7901028A (nl) * 1979-02-09 1980-08-12 Hollandse Signaalapparaten Bv Videoextractor.
NL7908860A (nl) * 1979-12-10 1981-07-01 Hollandse Signaalapparaten Bv Drempelschakeling voor radarvideosignalen.
GB2072451B (en) * 1980-03-24 1984-02-29 Marconi Co Ltd Signal rank detectors
DE3012036C2 (de) * 1980-03-28 1982-06-24 Siemens AG, 1000 Berlin und 8000 München Puls-Doppler-Radar mit einer CFAR-Schwelle
NL8006950A (nl) * 1980-12-22 1982-07-16 Hollandse Signaalapparaten Bv Drempelschakeling voor radarvideoinformatie.
US7683827B2 (en) 2004-12-15 2010-03-23 Valeo Radar Systems, Inc. System and method for reducing the effect of a radar interference signal
US20100238066A1 (en) * 2005-12-30 2010-09-23 Valeo Raytheon Systems, Inc. Method and system for generating a target alert
US7379018B1 (en) * 2005-12-30 2008-05-27 Valeo Raytheon Systems, Inc. System and method for verifying a radar detection
US7336219B1 (en) 2005-12-30 2008-02-26 Valeo Raytheon Systems, Inc. System and method for generating a radar detection threshold

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1193836A (nl) * 1957-04-04 1959-11-05
US3196434A (en) * 1960-06-14 1965-07-20 Itt Radar system with improved area type moving target indicator
DE1248124B (de) * 1962-08-22 1967-08-24 Telefunken Patent Einrichtung zur automatischen Auswertung von quantisierten Radarsignalen
FR1372503A (fr) * 1963-07-01 1964-09-18 Electronique Et De La Radioind Perfectionnements aux dispositifs à mémoire
FR1438597A (fr) * 1965-04-09 1966-05-13 Int Standard Electric Corp Commande automatique de valeur de seuil pour l'évaluation des signaux
US3430235A (en) * 1964-05-01 1969-02-25 Avco Corp Automatic signal discriminator and threshold adjustment circuit for range-gated radar detection systems
US3312969A (en) * 1965-07-09 1967-04-04 Burroughs Corp Radar video processor and clutter eliminator
US3380018A (en) * 1967-03-20 1968-04-23 Navy Usa Digital density threshold for sonar

Also Published As

Publication number Publication date
NL160655C (nl) 1979-11-15
DE1766173B1 (de) 1972-02-03
US3487405A (en) 1969-12-30
SE352450B (nl) 1972-12-27
FR1527968A (fr) 1968-06-07
NL6804945A (nl) 1968-10-14
GB1216406A (en) 1970-12-23

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: TIV