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FR2391600A1 - Systeme de conversion d'exploration de representation sur tube a rayons cathodiques - Google Patents

Systeme de conversion d'exploration de representation sur tube a rayons cathodiques

Info

Publication number
FR2391600A1
FR2391600A1 FR7812898A FR7812898A FR2391600A1 FR 2391600 A1 FR2391600 A1 FR 2391600A1 FR 7812898 A FR7812898 A FR 7812898A FR 7812898 A FR7812898 A FR 7812898A FR 2391600 A1 FR2391600 A1 FR 2391600A1
Authority
FR
France
Prior art keywords
memory
representation
exploration
reiteration
conversion system
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.)
Granted
Application number
FR7812898A
Other languages
English (en)
Other versions
FR2391600B1 (fr
Inventor
Monroe Albert Miller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bendix Corp
Original Assignee
Bendix Corp
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 Bendix Corp filed Critical Bendix Corp
Publication of FR2391600A1 publication Critical patent/FR2391600A1/fr
Application granted granted Critical
Publication of FR2391600B1 publication Critical patent/FR2391600B1/fr
Granted legal-status Critical Current

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
    • G01S7/295—Means for transforming co-ordinates or for evaluating data, e.g. using computers
    • G01S7/298—Scan converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

Système de conversion d'exploration de représentation destiné à représenter des données digitalisées disponibles en coordonnées polaires Q theta en coordonnées rectangulaire XY. Système dans lequel les données digitalisées sont transférées d'une mémoire tampon d'entrée dans une mémoire à réitération de manière que l'information précédemment emmagasinée en QO dans la mémoire tampon soit ensuite emmagasinée en XY dans la mémoire à réitération; la transformation de coordonnées est effectuée en calculant, à la fin d'une extraction de représentation d'une ligne horizontale particulière de données, les adresses Q et X des cellules de la mémoire à réitération devant être mises à jour depuis la mémoire tampon durant l'extraction de la ligne horizontale de données suivante ; lorsque les adresses X calculé et X horizontal correspondant, la mémoire à réitération est mise à jour avec les valeurs Q calculées. Système applicable aux représentations de radar.
FR7812898A 1977-05-20 1978-05-02 Systeme de conversion d'exploration de representation sur tube a rayons cathodiques Granted FR2391600A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/799,064 US4149252A (en) 1977-05-20 1977-05-20 Digital ρ-θ to XY scan converter for use with limited access or random access reiteration memory

Publications (2)

Publication Number Publication Date
FR2391600A1 true FR2391600A1 (fr) 1978-12-15
FR2391600B1 FR2391600B1 (fr) 1982-12-17

Family

ID=25174956

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7812898A Granted FR2391600A1 (fr) 1977-05-20 1978-05-02 Systeme de conversion d'exploration de representation sur tube a rayons cathodiques

Country Status (5)

Country Link
US (1) US4149252A (fr)
DE (1) DE2821421C3 (fr)
FR (1) FR2391600A1 (fr)
GB (1) GB1585999A (fr)
IT (1) IT1095510B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441973A1 (fr) * 1978-11-13 1980-06-13 Litton Industrial Products Convertisseur de balayage de systemes de formation d'images

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6024429B2 (ja) * 1977-08-15 1985-06-12 沖電気工業株式会社 デイジタル走査変換方式
US4214269A (en) * 1979-03-09 1980-07-22 Advanced Technology Laboratories, Inc. Real time digital scan converter
US4348693A (en) * 1979-04-30 1982-09-07 Arvin Industries, Inc. Television weather radar system
US4415928A (en) * 1981-01-26 1983-11-15 Rca Corporation Calculation of radial coordinates of polar-coordinate raster scan
US4387365A (en) * 1981-05-15 1983-06-07 Advanced Technology Laboratories, Inc. Real time digital scan converter
US4358789A (en) * 1981-06-01 1982-11-09 Inframetrics, Inc. Digital scan converter for image scanning and display system
US4547803A (en) * 1981-11-27 1985-10-15 Raytheon Company PPI To raster display scan converter
DE3235743C2 (de) * 1982-09-27 1987-04-09 Siemens AG, 1000 Berlin und 8000 München Anordnung zum Erkennen von Objekten und deren Drehlage
GB2169465B (en) * 1984-12-11 1989-10-04 Mars G B Ltd Polar to cartesian scan conversion
FR2579794B1 (fr) * 1985-04-02 1989-06-02 Thomson Csf Procede d'insertion et medaillons dans l'image fournie par un transformateur numerique d'images et transformateur numerique d'images mettant en oeuvre ce procede
US6320609B1 (en) 1998-07-10 2001-11-20 Nanometrics Incorporated System using a polar coordinate stage and continuous image rotation to compensate for stage rotation
JP5411478B2 (ja) * 2008-10-03 2014-02-12 古野電気株式会社 レーダ装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2148348A1 (fr) * 1969-11-28 1973-03-23 Hughes Aircraft Co
US3904817A (en) * 1974-02-01 1975-09-09 United Aircraft Corp Serial scan converter
US4002827A (en) * 1975-05-15 1977-01-11 General Electric Company Polar coordinate format to a cartesian coordinate format scan converter
FR2341141A1 (fr) * 1976-02-16 1977-09-09 Hollandse Signaalapparaten Bv Systeme de conversion numerique de balayage

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3147474A (en) * 1962-01-23 1964-09-01 Sperry Rand Corp Information transformation system
US3673323A (en) * 1970-09-23 1972-06-27 Hewlett Packard Co Storage display system
US3827027A (en) * 1971-09-22 1974-07-30 Texas Instruments Inc Method and apparatus for producing variable formats from a digital memory
US3765018A (en) * 1972-06-02 1973-10-09 Hughes Aircraft Co Digital scan converter
US3792194A (en) * 1972-06-05 1974-02-12 Westinghouse Electric Corp Scan conversion apparatus
GB1326466A (en) * 1972-06-23 1973-08-15 Elliott Brothers London Ltd Scan conversion arrangements
FR2266179A1 (en) * 1974-03-26 1975-10-24 Labo Cent Telecommunicat Surface radar for airfield surveillance - has rotating antenna and high resolution transmitter-receiver
GB1510148A (en) * 1975-04-17 1978-05-10 Secr Defence Digital scan converters

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2148348A1 (fr) * 1969-11-28 1973-03-23 Hughes Aircraft Co
US3904817A (en) * 1974-02-01 1975-09-09 United Aircraft Corp Serial scan converter
US4002827A (en) * 1975-05-15 1977-01-11 General Electric Company Polar coordinate format to a cartesian coordinate format scan converter
FR2341141A1 (fr) * 1976-02-16 1977-09-09 Hollandse Signaalapparaten Bv Systeme de conversion numerique de balayage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441973A1 (fr) * 1978-11-13 1980-06-13 Litton Industrial Products Convertisseur de balayage de systemes de formation d'images

Also Published As

Publication number Publication date
DE2821421C3 (de) 1980-10-16
GB1585999A (en) 1981-03-11
DE2821421A1 (de) 1978-11-23
DE2821421B2 (de) 1980-02-14
IT1095510B (it) 1985-08-10
FR2391600B1 (fr) 1982-12-17
US4149252A (en) 1979-04-10
IT7823593A0 (it) 1978-05-19

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