FR2355302A1 - Montage de formation de faisceau a signaux fortement ecretes - Google Patents

Montage de formation de faisceau a signaux fortement ecretes

Info

Publication number
FR2355302A1
FR2355302A1 FR7718667A FR7718667A FR2355302A1 FR 2355302 A1 FR2355302 A1 FR 2355302A1 FR 7718667 A FR7718667 A FR 7718667A FR 7718667 A FR7718667 A FR 7718667A FR 2355302 A1 FR2355302 A1 FR 2355302A1
Authority
FR
France
Prior art keywords
screwed
highly
signals
training assembly
signal harness
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
FR7718667A
Other languages
English (en)
Other versions
FR2355302B1 (fr
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
Raytheon 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 Raytheon Co filed Critical Raytheon Co
Publication of FR2355302A1 publication Critical patent/FR2355302A1/fr
Application granted granted Critical
Publication of FR2355302B1 publication Critical patent/FR2355302B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/22—Antenna units of the array energised non-uniformly in amplitude or phase, e.g. tapered array or binomial array
    • 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
    • G01S7/52003—Techniques for enhancing spatial resolution of targets
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
    • G10K11/341—Circuits therefor
    • G10K11/346—Circuits therefor using phase variation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S367/00—Communications, electrical: acoustic wave systems and devices
    • Y10S367/905—Side lobe reduction or shading

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Power Steering Mechanism (AREA)

Abstract

Réseau cylindrique d'éléments rayonnants ou de transducteurs utilisés en réception couplés chacun par un circuit d'écrêtage avec un registre à décalage à prises multiples pour imposer des retards aux signaux des éléments en vue de former un faisceau d'énergie rayonnante. On réduit les lobes secondaires du diagramme de rayonnement en multipliant les signaux des registres à décalage par des facteurs de pondération avant leur sommation destinée à former un faisceau, les signaux écrêtés servant de facteurs unitaires de signe positif ou négatif au cours de la multiplication. Application particulière aux réseaux de transducteurs de sonar.
FR7718667A 1976-06-17 1977-06-17 Montage de formation de faisceau a signaux fortement ecretes Granted FR2355302A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/696,978 US4060792A (en) 1976-06-17 1976-06-17 Hard clipped beam former

Publications (2)

Publication Number Publication Date
FR2355302A1 true FR2355302A1 (fr) 1978-01-13
FR2355302B1 FR2355302B1 (fr) 1983-01-07

Family

ID=24799292

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7718667A Granted FR2355302A1 (fr) 1976-06-17 1977-06-17 Montage de formation de faisceau a signaux fortement ecretes

Country Status (11)

Country Link
US (1) US4060792A (fr)
JP (1) JPS5922911B2 (fr)
AU (1) AU504628B2 (fr)
CA (1) CA1080338A (fr)
DE (1) DE2727551C2 (fr)
DK (1) DK150412C (fr)
FR (1) FR2355302A1 (fr)
GB (1) GB1537972A (fr)
IT (1) IT1078894B (fr)
NL (1) NL177252C (fr)
NO (1) NO147497C (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2415925A1 (fr) * 1978-01-27 1979-08-24 Raytheon Co Dispositif de formation de faisceau
EP0076117A1 (fr) * 1981-09-25 1983-04-06 The Marconi Company Limited Systèmes de sonar
FR2628265A1 (fr) * 1987-03-06 1989-09-08 Thomson Csf Antenne directive a transducteurs multiples notamment pour sonar
FR2669114A1 (fr) * 1990-08-01 1992-05-15 Westinghouse Electric Corp Appareil pour attenuer les lobes lateraux dans un diagramme directionnel de rayonnement d'un reseau.

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4254417A (en) * 1979-08-20 1981-03-03 The United States Of America As Represented By The Secretary Of The Navy Beamformer for arrays with rotational symmetry
US4313116A (en) * 1980-01-30 1982-01-26 Westinghouse Electric Corp. Hybrid adaptive sidelobe canceling system
US5309409A (en) * 1982-10-28 1994-05-03 Westinghouse Electric Corp. Target detection system
US4559605A (en) * 1983-09-16 1985-12-17 The Boeing Company Method and apparatus for random array beamforming
JPS61501950A (ja) * 1984-01-23 1986-09-04 オ−ストラリア国 センサ要素を処理する方法
DE3616498A1 (de) * 1986-05-16 1987-11-19 Siemens Ag Verfahren und vorrichtung zur digitalen verzoegerung von ultraschallsignalen im empfangsfall
JPH0655212B2 (ja) * 1986-07-07 1994-07-27 松下電器産業株式会社 超音波診断装置
JPH0216005Y2 (fr) * 1986-07-21 1990-05-01
US6205224B1 (en) * 1996-05-17 2001-03-20 The Boeing Company Circularly symmetric, zero redundancy, planar array having broad frequency range applications
DE10027538C1 (de) * 2000-06-02 2001-10-31 Stn Atlas Elektronik Gmbh Verfahren zum Bestimmen der Einfallsrichtung von Schallwellen
US7627029B2 (en) 2003-05-20 2009-12-01 Rambus Inc. Margin test methods and circuits
US7590175B2 (en) 2003-05-20 2009-09-15 Rambus Inc. DFE margin test methods and circuits that decouple sample and feedback timing
DE10332886B3 (de) * 2003-07-19 2004-12-30 Atlas Elektronik Gmbh Verfahren zum Bestimmen von Zieldaten mit einer Aktiv-Sonaranlage
DE10353292B3 (de) * 2003-11-14 2005-05-19 Atlas Elektronik Gmbh Verfahren zur Bildung eines Gruppensignals
DE10356577B4 (de) * 2003-12-04 2006-04-06 Atlas Elektronik Gmbh Verfahren zum Aussenden und Empfangen von Wellenenergie
US7675819B2 (en) * 2005-10-17 2010-03-09 The Johns Hopkins University Volumetric passive sonobuoy array of polyvinylidene fluoride (PVDF) wires
US8004436B2 (en) * 2008-10-09 2011-08-23 Analog Devices, Inc. Dithering technique for reducing digital interference
US9231303B2 (en) 2012-06-13 2016-01-05 The United States Of America, As Represented By The Secretary Of The Navy Compressive beamforming

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3309706A (en) * 1962-05-21 1967-03-14 Sylvania Electric Prod Phased array systems
US3803543A (en) * 1967-03-17 1974-04-09 Us Navy Remotely formed multibeam hydrophone system
US3810082A (en) * 1971-07-23 1974-05-07 Krupp Gmbh Circuit arrangement for forming a time sequence of signals
US3860928A (en) * 1972-07-03 1975-01-14 Raytheon Co Super-directive system
FR2241078A1 (fr) * 1973-08-16 1975-03-14 France Etat

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3905009A (en) * 1974-09-20 1975-09-09 Us Navy Transducer array scanning system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3309706A (en) * 1962-05-21 1967-03-14 Sylvania Electric Prod Phased array systems
US3803543A (en) * 1967-03-17 1974-04-09 Us Navy Remotely formed multibeam hydrophone system
US3810082A (en) * 1971-07-23 1974-05-07 Krupp Gmbh Circuit arrangement for forming a time sequence of signals
US3860928A (en) * 1972-07-03 1975-01-14 Raytheon Co Super-directive system
FR2241078A1 (fr) * 1973-08-16 1975-03-14 France Etat

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
NV8014/73 *
NV8104/75 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2415925A1 (fr) * 1978-01-27 1979-08-24 Raytheon Co Dispositif de formation de faisceau
EP0076117A1 (fr) * 1981-09-25 1983-04-06 The Marconi Company Limited Systèmes de sonar
FR2628265A1 (fr) * 1987-03-06 1989-09-08 Thomson Csf Antenne directive a transducteurs multiples notamment pour sonar
FR2669114A1 (fr) * 1990-08-01 1992-05-15 Westinghouse Electric Corp Appareil pour attenuer les lobes lateraux dans un diagramme directionnel de rayonnement d'un reseau.

Also Published As

Publication number Publication date
DK266777A (da) 1977-12-18
AU2539577A (en) 1978-11-30
NL177252C (nl) 1985-08-16
AU504628B2 (en) 1979-10-18
US4060792A (en) 1977-11-29
JPS5922911B2 (ja) 1984-05-29
FR2355302B1 (fr) 1983-01-07
NO772104L (no) 1977-12-20
DE2727551C2 (de) 1984-04-26
DK150412C (da) 1988-01-18
IT1078894B (it) 1985-05-08
NL7706146A (nl) 1977-12-20
NO147497C (no) 1983-04-20
GB1537972A (en) 1979-01-10
DE2727551A1 (de) 1977-12-29
CA1080338A (fr) 1980-06-24
JPS5325453A (en) 1978-03-09
NL177252B (nl) 1985-03-18
NO147497B (no) 1983-01-10
DK150412B (da) 1987-02-23

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Legal Events

Date Code Title Description
ST Notification of lapse