ES399340A1 - Perfeccionamientos introducidos en sistemas de propagacion de senales. - Google Patents

Perfeccionamientos introducidos en sistemas de propagacion de senales.

Info

Publication number
ES399340A1
ES399340A1 ES399340A ES399340A ES399340A1 ES 399340 A1 ES399340 A1 ES 399340A1 ES 399340 A ES399340 A ES 399340A ES 399340 A ES399340 A ES 399340A ES 399340 A1 ES399340 A1 ES 399340A1
Authority
ES
Spain
Prior art keywords
frequency
energy
communication system
transmission medium
system utilizing
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
Application number
ES399340A
Other languages
English (en)
Spanish (es)
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 ES399340A1 publication Critical patent/ES399340A1/es
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G10K11/343—Circuits therefor using frequency variation or different frequencies
    • 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
    • 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
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Radio Transmission System (AREA)
  • Transmitters (AREA)
ES399340A 1971-02-01 1972-01-31 Perfeccionamientos introducidos en sistemas de propagacion de senales. Expired ES399340A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11121871A 1971-02-01 1971-02-01

Publications (1)

Publication Number Publication Date
ES399340A1 true ES399340A1 (es) 1975-06-01

Family

ID=22337233

Family Applications (1)

Application Number Title Priority Date Filing Date
ES399340A Expired ES399340A1 (es) 1971-02-01 1972-01-31 Perfeccionamientos introducidos en sistemas de propagacion de senales.

Country Status (12)

Country Link
JP (1) JPS5328784B1 (no)
AU (1) AU459096B2 (no)
BE (1) BE778760A (no)
CA (1) CA950105A (no)
DE (1) DE2204028C3 (no)
ES (1) ES399340A1 (no)
FR (1) FR2124285B1 (no)
GB (1) GB1360901A (no)
IT (1) IT949657B (no)
NL (1) NL160656C (no)
NO (1) NO133984C (no)
SE (1) SE377385B (no)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2385271A1 (fr) * 1977-03-25 1978-10-20 Thomson Csf Dispositif de teletransmission d'informations, notamment pour systeme de teleguidage de vehicules soumis a de grandes accelerations, et systeme de teleguidage comportant un tel dispositif
FR2431137A2 (fr) * 1977-12-20 1980-02-08 Inst Francais Du Petrole Sonar pour obtenir une representation topographique d'une surface immergee et des couches sous-jacentes
FR2589248B1 (fr) * 1978-02-17 1988-01-22 Thomson Csf Amelioration des systemes d'autoguidage acoustique de vehicules sous-marins
FR2441180A1 (fr) * 1978-11-10 1980-06-06 Thomson Csf Courantometre doppler pour grands fonds
JPS55114980A (en) * 1979-02-28 1980-09-04 Sumitomo Metal Mining Co Ltd Inspection method for massive object on sea bottom and its unit
DE2920330C2 (de) * 1979-05-19 1987-01-02 Fried. Krupp Gmbh, 4300 Essen Echolot mit zwei Sendefrequenzen
WO1981000456A1 (en) * 1979-07-30 1981-02-19 Dorian Ind Pty Ltd Method and device for measuring distances
FR2538124B1 (fr) * 1982-12-17 1986-02-07 Thomson Csf Systeme acoustique a antennes parametriques multifaisceaux
GB8405099D0 (en) * 1984-02-28 1984-04-04 Donnelly K Hydrographic survey module
DE3416246C1 (de) * 1984-05-02 1985-10-24 Ski-Data Computer-Handelsgesellschaft mbH, St. Leonhard, Grödig Vorrichtung zur Steuerung der Bewegungen der Planierwerkzeuge von Pistenpraeparierfahrzeugen
FR2594233A1 (fr) * 1986-02-07 1987-08-14 Morand Christian Dispositif d'analyse et de visualisation en couleurs d'objets eventuellement masques par un ecran

Also Published As

Publication number Publication date
DE2204028A1 (de) 1972-08-10
AU459096B2 (en) 1975-03-20
IT949657B (it) 1973-06-11
FR2124285B1 (no) 1977-04-01
NO133984C (no) 1976-07-28
NL160656C (nl) 1979-11-15
BE778760A (fr) 1972-05-16
DE2204028B2 (de) 1973-11-08
DE2204028C3 (de) 1974-06-12
JPS5328784B1 (no) 1978-08-16
NL160656B (nl) 1979-06-15
CA950105A (en) 1974-06-25
GB1360901A (en) 1974-07-24
FR2124285A1 (no) 1972-09-22
SE377385B (no) 1975-06-30
AU3766472A (en) 1973-07-12
NL7201109A (no) 1972-08-03
NO133984B (no) 1976-04-20

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