NO20053337L - Fremgangsmate for prosessering av ekkoer av utsendte signaler. - Google Patents

Fremgangsmate for prosessering av ekkoer av utsendte signaler.

Info

Publication number
NO20053337L
NO20053337L NO20053337A NO20053337A NO20053337L NO 20053337 L NO20053337 L NO 20053337L NO 20053337 A NO20053337 A NO 20053337A NO 20053337 A NO20053337 A NO 20053337A NO 20053337 L NO20053337 L NO 20053337L
Authority
NO
Norway
Prior art keywords
spectra
transmitted signals
signal
product
correlation
Prior art date
Application number
NO20053337A
Other languages
English (en)
Other versions
NO20053337D0 (no
NO336331B1 (no
Inventor
Yves Doisy
Laurent Deruaz
Pierre Alinat
Marc Masoni
Original Assignee
Thales Sa
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 Thales Sa filed Critical Thales Sa
Publication of NO20053337D0 publication Critical patent/NO20053337D0/no
Publication of NO20053337L publication Critical patent/NO20053337L/no
Publication of NO336331B1 publication Critical patent/NO336331B1/no

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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/50—Systems of measurement, based on relative movement of the target
    • G01S15/52—Discriminating between fixed and moving objects or between objects moving at different speeds
    • 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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/50—Systems of measurement, based on relative movement of the target
    • G01S15/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
    • G01S15/582—Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of interrupted pulse-modulated waves and based upon the Doppler effect resulting from movement of targets
    • 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
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52001—Auxiliary means for detecting or identifying sonar signals or the like, e.g. sonar jamming signals
    • 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
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/523—Details of pulse systems
    • G01S7/526—Receivers
    • G01S7/527—Extracting wanted echo signals
    • G01S7/5273—Extracting wanted echo signals using digital techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2628—Inverse Fourier transform modulators, e.g. inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Acoustics & Sound (AREA)
  • Discrete Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Signal Processing (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Dc Digital Transmission (AREA)
  • Holo Graphy (AREA)

Abstract

Den foreliggende oppfinnelsen omfatter en fremgangsmåte som tillater reduksjon av beregningsbelastningen forårsaket av implementeringen av konvensjonelle fremgangsmåter for signalprosessering som utføres ved hjelp av flerkopikorrelasjon, eller med andre ord av samtidige korrelasjoner av spektret til det mottatte signalet og kopier av nevnte signal, hvor hver av kopiene har en forskjellig dopplerforskyvning. I henhold til oppfinnelsen, omfatter flerkopikorrelasjonsoperasjonen minst følgende trinn: - et trinn (32) for tid-frekvens-transformasjonen av det mottatte signalet, - et trinn (61) for dannelse av genererte spektra ved hjelp av valg av spektrallinjer og sammenkjeding, med utgangspunkt i spektret til det mottatte signalet, - et trinn (64) for beregningen av det interspektrale produktet, med andre ord produktet av hvert genererte spektrum og det sammenkjedede konjugerte spektret til den korresponderende dopplerkopien, - et trinn (66) for frekvens-tid-transformasjonen av interspektralproduktene. oppfinnelsens område er fremgangsmåter for prosessering av sonarsignaler. oppfinnelsen vedrører mer spesifikt sonarekkoer som kommer fra objekter som er bestrålt av sonarsendinger med et "kam"-linjespektrum sammensatt av spektrallinjer.
NO20053337A 2004-07-09 2005-07-08 Fremgangsmåte for prosessering av ekkoer fra utsendte signaler. NO336331B1 (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0407706A FR2872919B1 (fr) 2004-07-09 2004-07-09 Traitement coherent rapide pour codes a spectre de raies periodiques

Publications (3)

Publication Number Publication Date
NO20053337D0 NO20053337D0 (no) 2005-07-08
NO20053337L true NO20053337L (no) 2006-01-10
NO336331B1 NO336331B1 (no) 2015-08-03

Family

ID=34940279

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20053337A NO336331B1 (no) 2004-07-09 2005-07-08 Fremgangsmåte for prosessering av ekkoer fra utsendte signaler.

Country Status (10)

Country Link
US (1) US7286443B2 (no)
EP (1) EP1615049B1 (no)
JP (1) JP4899031B2 (no)
KR (1) KR101175087B1 (no)
AT (1) ATE371875T1 (no)
DE (1) DE602005002197T2 (no)
ES (1) ES2292064T3 (no)
FR (1) FR2872919B1 (no)
NO (1) NO336331B1 (no)
SG (1) SG119299A1 (no)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2872919B1 (fr) * 2004-07-09 2006-09-29 Thales Sa Traitement coherent rapide pour codes a spectre de raies periodiques
FR2900504B1 (fr) * 2006-04-26 2009-11-20 Thales Sa Procede pour optimiser l'alimentation d'une antenne lineaire d'emission remorquee pour emettre en mode omnidirectionnel.
JP4890195B2 (ja) * 2006-10-24 2012-03-07 日本電信電話株式会社 ディジタル信号分波装置及びディジタル信号合波装置
DE102008040248A1 (de) * 2008-07-08 2010-01-14 Robert Bosch Gmbh Verfahren und Vorrichtung zum Bestimmen einer Geschwindigkeit eines Objekts
FR2951561B1 (fr) * 2009-10-20 2011-12-09 Areva T & D Sas Procede de detection de la position d'un front d'onde correspondant a un evenement dans un signal recu par un detecteur
JP5047314B2 (ja) * 2010-01-15 2012-10-10 富士フイルム株式会社 有機電界発光素子
DE102010044742A1 (de) * 2010-09-08 2012-03-08 Atlas Elektronik Gmbh Verfahren und Vorrichrung zur Bestimmung einer aus dem Doppler-Effekt resultierenden Doppler-Frequenzverschiebung
PT106909B (pt) * 2013-04-26 2017-06-01 Cuf - Quim Ind S A Processo e equipamento para remoção de impurezas de compostos aromáticos nitrados
DE102017107634A1 (de) * 2017-04-10 2018-10-11 Atlas Elektronik Gmbh Verarbeitungseinheit für eine sonaranlage zum verarbeiten von hydrophonsignalen sowie sonaranlage und verfahren
KR102057271B1 (ko) * 2018-07-24 2019-12-18 국방과학연구소 음향 신호 확장 장치 및 방법
CN113534115B (zh) * 2021-05-31 2023-09-29 中国船舶重工集团公司第七一五研究所 一种主被动联合处理的声纳目标高精度线谱提取方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2653564B1 (fr) 1989-10-20 1992-01-24 Thomson Csf Procede de formation de voies pour sonar.
US5245587A (en) * 1990-12-14 1993-09-14 Hutson William H Multi-dimensional signal processing and display
US5490516A (en) * 1990-12-14 1996-02-13 Hutson; William H. Method and system to enhance medical signals for real-time analysis and high-resolution display
FR2675587B1 (fr) 1991-04-16 1993-07-16 Thomson Csf Procede de compensation du mouvement de l'antenne pour un sonar.
US5557637A (en) * 1994-09-24 1996-09-17 Glynn; Thomas W. Convolutional ambiguity multiple access (CAMA) transmission system
FR2754907B1 (fr) 1996-10-22 1999-01-08 Thomson Marconi Sonar Sas Procede de mesure du decalage doppler dans un systeme de detection utilisant des codes ambigus
FR2778748B1 (fr) * 1998-05-15 2004-08-27 Thomson Marconi Sonar Sas Procede de detection d'objets mobiles par sonar actif
JP3199240B2 (ja) * 1999-03-16 2001-08-13 防衛庁技術研究本部長 ドップラー補正を行う航走雑音用音響測位装置及び方法
JP3367462B2 (ja) * 1999-04-20 2003-01-14 日本電気株式会社 アクティブソーナー及びその目標検出方法
FR2872919B1 (fr) * 2004-07-09 2006-09-29 Thales Sa Traitement coherent rapide pour codes a spectre de raies periodiques

Also Published As

Publication number Publication date
FR2872919A1 (fr) 2006-01-13
FR2872919B1 (fr) 2006-09-29
NO20053337D0 (no) 2005-07-08
DE602005002197T2 (de) 2008-05-21
ATE371875T1 (de) 2007-09-15
EP1615049B1 (fr) 2007-08-29
DE602005002197D1 (de) 2007-10-11
JP4899031B2 (ja) 2012-03-21
EP1615049A1 (fr) 2006-01-11
ES2292064T3 (es) 2008-03-01
US7286443B2 (en) 2007-10-23
SG119299A1 (en) 2006-02-28
KR101175087B1 (ko) 2012-08-21
JP2006023306A (ja) 2006-01-26
US20070008818A1 (en) 2007-01-11
NO336331B1 (no) 2015-08-03
KR20060050017A (ko) 2006-05-19

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