IT1078894B - Perfezionamento nei circuiti formatori di fasci di energia radiante sonica o elettromagnetica ad esembpio per dispositivi sonar - Google Patents

Perfezionamento nei circuiti formatori di fasci di energia radiante sonica o elettromagnetica ad esembpio per dispositivi sonar

Info

Publication number
IT1078894B
IT1078894B IT49693/77A IT4969377A IT1078894B IT 1078894 B IT1078894 B IT 1078894B IT 49693/77 A IT49693/77 A IT 49693/77A IT 4969377 A IT4969377 A IT 4969377A IT 1078894 B IT1078894 B IT 1078894B
Authority
IT
Italy
Prior art keywords
sonic
improvement
energy beam
beam forming
radiant energy
Prior art date
Application number
IT49693/77A
Other languages
English (en)
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
Application granted granted Critical
Publication of IT1078894B publication Critical patent/IT1078894B/it

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)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (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)
IT49693/77A 1976-06-17 1977-06-02 Perfezionamento nei circuiti formatori di fasci di energia radiante sonica o elettromagnetica ad esembpio per dispositivi sonar IT1078894B (it)

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 (1)

Publication Number Publication Date
IT1078894B true IT1078894B (it) 1985-05-08

Family

ID=24799292

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49693/77A IT1078894B (it) 1976-06-17 1977-06-02 Perfezionamento nei circuiti formatori di fasci di energia radiante sonica o elettromagnetica ad esembpio per dispositivi sonar

Country Status (11)

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

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4170766A (en) * 1978-01-27 1979-10-09 Raytheon Company Beamformer
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
JPS5740664A (en) 1980-08-26 1982-03-06 Furuno Electric Co Ltd Indicator for detected information
US4525816A (en) * 1981-09-25 1985-06-25 The Marconi Company Limited Sonar arrangements
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
WO1985003359A1 (en) * 1984-01-23 1985-08-01 The Commonwealth Of Australia Care Of The Secretar Method of processing sensor elements
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
FR2628265B1 (fr) * 1987-03-06 1990-12-21 Thomson Csf Antenne directive a transducteurs multiples notamment pour sonar
US5043951A (en) * 1990-08-01 1991-08-27 Westinghouse Electric Corp. Apparatus for reduction of side lobes in a beam pattern of an array
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

Family Cites Families (6)

* 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
DE2163053C3 (de) * 1971-07-23 1979-08-02 Fried. Krupp Gmbh, 4300 Essen Schaltanordnung zum Bilden von zeitlich aufeinanderfolgenden Gruppensignalen in der Peiltechnik
US3860928A (en) * 1972-07-03 1975-01-14 Raytheon Co Super-directive system
FR2241078B1 (it) * 1973-08-16 1977-08-12 France Etat
US3905009A (en) * 1974-09-20 1975-09-09 Us Navy Transducer array scanning system

Also Published As

Publication number Publication date
DE2727551C2 (de) 1984-04-26
US4060792A (en) 1977-11-29
DK266777A (da) 1977-12-18
NO147497C (no) 1983-04-20
DK150412B (da) 1987-02-23
DK150412C (da) 1988-01-18
DE2727551A1 (de) 1977-12-29
FR2355302B1 (it) 1983-01-07
NO772104L (no) 1977-12-20
NL177252C (nl) 1985-08-16
AU2539577A (en) 1978-11-30
NO147497B (no) 1983-01-10
NL7706146A (nl) 1977-12-20
CA1080338A (en) 1980-06-24
NL177252B (nl) 1985-03-18
JPS5922911B2 (ja) 1984-05-29
JPS5325453A (en) 1978-03-09
FR2355302A1 (fr) 1978-01-13
AU504628B2 (en) 1979-10-18
GB1537972A (en) 1979-01-10

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