[go: up one dir, main page]

DE3683623D1 - Kodierung des bildes eines radars mit synthetischer apertur fuer datenkompression. - Google Patents

Kodierung des bildes eines radars mit synthetischer apertur fuer datenkompression.

Info

Publication number
DE3683623D1
DE3683623D1 DE8686904500T DE3683623T DE3683623D1 DE 3683623 D1 DE3683623 D1 DE 3683623D1 DE 8686904500 T DE8686904500 T DE 8686904500T DE 3683623 T DE3683623 T DE 3683623T DE 3683623 D1 DE3683623 D1 DE 3683623D1
Authority
DE
Germany
Prior art keywords
radar
coding
image
data compression
synthetic aperture
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.)
Expired - Fee Related
Application number
DE8686904500T
Other languages
English (en)
Inventor
E Hudson
G Niho
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.)
Raytheon Co
Original Assignee
Hughes Aircraft Co
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 Hughes Aircraft Co filed Critical Hughes Aircraft Co
Application granted granted Critical
Publication of DE3683623D1 publication Critical patent/DE3683623D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01S7/003—Transmission of data between radar, sonar or lidar systems and remote stations
    • 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
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
    • G01S13/90—Radar or analogous systems specially adapted for specific applications for mapping or imaging using synthetic aperture techniques, e.g. synthetic aperture radar [SAR] techniques
    • G01S13/9021—SAR image post-processing techniques
    • G01S13/9027—Pattern recognition for feature extraction

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Electromagnetism (AREA)
  • Image Processing (AREA)
  • Radar Systems Or Details Thereof (AREA)
DE8686904500T 1985-06-17 1986-06-03 Kodierung des bildes eines radars mit synthetischer apertur fuer datenkompression. Expired - Fee Related DE3683623D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/745,729 US4780718A (en) 1985-06-17 1985-06-17 Sar image encoding for data compression
PCT/US1986/001213 WO1986007636A1 (en) 1985-06-17 1986-06-03 Sar image encoding for data compression

Publications (1)

Publication Number Publication Date
DE3683623D1 true DE3683623D1 (de) 1992-03-05

Family

ID=24997997

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686904500T Expired - Fee Related DE3683623D1 (de) 1985-06-17 1986-06-03 Kodierung des bildes eines radars mit synthetischer apertur fuer datenkompression.

Country Status (6)

Country Link
US (1) US4780718A (de)
EP (1) EP0229821B1 (de)
JP (1) JPS62502066A (de)
DE (1) DE3683623D1 (de)
IL (1) IL78815A (de)
WO (1) WO1986007636A1 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5043734A (en) * 1988-12-22 1991-08-27 Hughes Aircraft Company Discrete autofocus for ultra-high resolution synthetic aperture radar
US5053778A (en) * 1989-08-10 1991-10-01 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Generation of topographic terrain models utilizing synthetic aperture radar and surface level data
JPH03264879A (ja) * 1990-03-14 1991-11-26 Nec Corp レーダービデオ圧縮システム
WO1992021101A1 (en) * 1991-05-17 1992-11-26 The Analytic Sciences Corporation Continuous-tone image compression
US5349359A (en) * 1993-05-10 1994-09-20 Environmental Research Institute Of Michigan Spatially variant apodization
JP2766166B2 (ja) * 1993-07-21 1998-06-18 日本電気株式会社 レーダビデオ圧縮装置
US5343204A (en) * 1993-07-29 1994-08-30 Unisys Corporation Auto-focusing correction for rotational acceleration effects on inverse synthetic aperture radar images
US5727092A (en) * 1995-05-17 1998-03-10 The Regents Of The University Of California Compression embedding
DE19625465C2 (de) * 1996-06-26 1998-11-26 Dornier Gmbh Verfahren zur datenreduzierenden Codierung von SAR-Rohdaten
US5850202A (en) * 1997-07-29 1998-12-15 Erim International, Inc. Method for improving SAR system sensitivity in the presence of RF interference
US8819723B1 (en) 2000-04-27 2014-08-26 The Directv Group, Inc. System and method for brokering auxiliary data broadcasting services
EP1712931A1 (de) * 2005-04-14 2006-10-18 Qinetiq Limited Verfahren und Vorrichtung um ein Ziel in einer Szene zu detektieren
US7307580B2 (en) * 2006-01-17 2007-12-11 Raytheon Company Non-statistical method for compressing and decompressing complex SAR data
JP5312150B2 (ja) * 2009-03-31 2013-10-09 三菱スペース・ソフトウエア株式会社 ＳＡＲ（ＳｙｎｔｈｅｔｉｃＡｐｅｒｔｕｒｅＲａｄａｒ）重畳データ生成装置、ＳＡＲ重畳データ再生装置、ＳＡＲ重畳データ生成プログラム、ＳＡＲ重畳データ再生プログラム、ＳＡＲ重畳データ生成方法およびＳＡＲ重畳データ再生方法
GB2484969B (en) * 2010-10-29 2013-11-20 Canon Kk Improved reference frame for video encoding and decoding
US9041586B2 (en) * 2012-08-23 2015-05-26 Raytheon Company Vectorization approach to isolating local maxima in an N-dimensional dataset
US12199644B1 (en) 2023-12-12 2025-01-14 Atombeam Technologies Inc System and method for homomorphic compression using latent space preprocessing and neural upsampling
US12058333B1 (en) * 2023-12-12 2024-08-06 AtomBeam Technologies Inc. System and methods for upsampling of decompressed data after lossy compression using a neural network
US12231151B1 (en) 2017-10-30 2025-02-18 Atombeam Technologies Inc Federated large codeword model deep learning architecture with homomorphic compression and encryption
US12261631B2 (en) 2017-10-30 2025-03-25 Atombeam Technologies Inc Deep learning using large codeword model with homomorphically compressed data
JP2021039072A (ja) * 2019-09-05 2021-03-11 日本無線株式会社 海面クラッタ除去装置及び海面クラッタ除去プログラム
US11949763B2 (en) * 2020-11-19 2024-04-02 Steradian Semiconductors Private Limited System, device and method for data compression in a radar system

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215934A (en) * 1960-10-21 1965-11-02 Sylvania Electric Prod System for quantizing intelligence according to ratio of outputs of adjacent band-pass filters
US3271765A (en) * 1963-12-19 1966-09-06 Ibm Data compression processing system
US3885224A (en) * 1972-02-24 1975-05-20 Carl N Klahr Signal processing apparatus for imaging scanner
US3964064A (en) * 1972-09-21 1976-06-15 Brandao Ruy L Data display system having a multilevel video storage device
US4045795A (en) * 1975-06-23 1977-08-30 Nasa Charge-coupled device data processor for an airborne imaging radar system
GB1598437A (en) * 1977-05-02 1981-09-23 Plessey Co Ltd Radar signal processors
US4594593A (en) * 1981-12-28 1986-06-10 Nippon Electric Co., Ltd. Synthetic aperture radar image processing system
JPS58213268A (ja) * 1982-06-07 1983-12-12 Natl Space Dev Agency Japan<Nasda> 合成開口レ−ダ装置
JPS58213269A (ja) * 1982-06-07 1983-12-12 Natl Space Dev Agency Japan<Nasda> 合成開口レ−ダ装置
JPS5994092A (ja) * 1982-11-20 1984-05-30 Toshiba Corp 開口合成法に基づく信号処理装置
FR2543384A1 (fr) * 1983-03-22 1984-09-28 Thomson Csf Procede de codage adaptatif, et de decodage, d'une image de television, et dispositifs pour la mise en oeuvre de ce procede
US4617567A (en) * 1984-09-28 1986-10-14 The Boeing Company Automatic motion compensation for residual motion in a synthetic aperture radar system

Also Published As

Publication number Publication date
US4780718A (en) 1988-10-25
EP0229821B1 (de) 1992-01-22
JPS62502066A (ja) 1987-08-13
EP0229821A1 (de) 1987-07-29
IL78815A0 (en) 1986-09-30
WO1986007636A1 (en) 1986-12-31
IL78815A (en) 1991-08-16

Similar Documents

Publication Publication Date Title
DE3683623D1 (de) Kodierung des bildes eines radars mit synthetischer apertur fuer datenkompression.
DE3882707D1 (de) Radar mit synthetischer apertur.
DE3852284D1 (de) Wetterradar mit Turbulenzdetektion.
DE69013196D1 (de) Fernseh-Abtastzeilenverdoppler mit einem zeitlichen Mittelwertfilter.
DE3689011D1 (de) Bildspeicher.
DE68915109D1 (de) Markierungsvorrichtungen mit Tröpfen.
NO862364L (no) Radarsystem.
DE3685678D1 (de) Bildspeicher.
EP0509842A3 (en) Radar processor with range sidelobe reduction following doppler filtering
DE58909017D1 (de) Pulsdopplerradar.
DE68916692D1 (de) Radar-Antwortgerät.
DE58909387D1 (de) Radarsystem zur Positionsbestimmung von zwei oder mehreren Objekten.
DE3689037D1 (de) Radarsystem.
DE69009956D1 (de) Behälter mit Verbindungseinheit.
DE3879450D1 (de) Ultraschallechograph mit modifizierter bildkadenz.
NZ218353A (en) Counting objects by doppler radar
DE58900276D1 (de) Roentgendiagnostikeinrichtung mit einem speicherleuchtschirm.
AU544472B2 (en) Radar echo analysis
DE3886642D1 (de) Radar-Transponder.
DE3772797D1 (de) Radarantenne mit geringem platzbedarf.
NO902331D0 (no) Radarsystem.
NO902237D0 (no) Radarsystem.
DE3679512D1 (de) Landwirtschaftliche feldspritze mit einem spritzgestaenge.
DE3677547D1 (de) Schaltungsanordnung zur verbesserung des kontrastes eines videobildes.
NZ216990A (en) Position indicator beacon with radar transponder

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee