NO171616C - Fremgangsmaate og anordning for aa sende en sekvens av signaler som har et spektrum som strekker seg over et forutdefinerbart frekvensomraade - Google Patents

Fremgangsmaate og anordning for aa sende en sekvens av signaler som har et spektrum som strekker seg over et forutdefinerbart frekvensomraade

Info

Publication number
NO171616C
NO171616C NO872930A NO872930A NO171616C NO 171616 C NO171616 C NO 171616C NO 872930 A NO872930 A NO 872930A NO 872930 A NO872930 A NO 872930A NO 171616 C NO171616 C NO 171616C
Authority
NO
Norway
Prior art keywords
expands
spectrum
sending
procedure
sequence
Prior art date
Application number
NO872930A
Other languages
English (en)
Norwegian (no)
Other versions
NO872930L (no
NO872930D0 (no
NO171616B (no
Inventor
David E Nelson
Original Assignee
Hydroacoustic Inc
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 Hydroacoustic Inc filed Critical Hydroacoustic Inc
Publication of NO872930D0 publication Critical patent/NO872930D0/no
Publication of NO872930L publication Critical patent/NO872930L/no
Publication of NO171616B publication Critical patent/NO171616B/no
Publication of NO171616C publication Critical patent/NO171616C/no

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/02—Generating seismic energy
    • G01V1/04—Details
    • 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
    • G01S15/06—Systems determining the position data of a target
    • G01S15/08—Systems for measuring distance only
    • G01S15/10—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
    • G01S15/102—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves using transmission of pulses having some particular characteristics

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Radar, Positioning & Navigation (AREA)
  • General Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Transmitters (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
NO872930A 1986-08-25 1987-07-14 Fremgangsmaate og anordning for aa sende en sekvens av signaler som har et spektrum som strekker seg over et forutdefinerbart frekvensomraade NO171616C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/899,693 US4758997A (en) 1986-08-25 1986-08-25 Method and apparatus for the generation and transmission of signals for echo location and other signaling purposes, particularly in geophysical exploration

Publications (4)

Publication Number Publication Date
NO872930D0 NO872930D0 (no) 1987-07-14
NO872930L NO872930L (no) 1988-02-26
NO171616B NO171616B (no) 1992-12-28
NO171616C true NO171616C (no) 1993-04-07

Family

ID=25411415

Family Applications (1)

Application Number Title Priority Date Filing Date
NO872930A NO171616C (no) 1986-08-25 1987-07-14 Fremgangsmaate og anordning for aa sende en sekvens av signaler som har et spektrum som strekker seg over et forutdefinerbart frekvensomraade

Country Status (7)

Country Link
US (1) US4758997A (fr)
EP (1) EP0257231B1 (fr)
AU (1) AU593931B2 (fr)
CA (1) CA1277759C (fr)
DE (1) DE3784409D1 (fr)
DK (1) DK441087A (fr)
NO (1) NO171616C (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4969129A (en) * 1989-09-20 1990-11-06 Texaco Inc. Coding seismic sources
US5105391A (en) * 1990-10-31 1992-04-14 Exxon Production Research Company Method for high-resolution seismic recording using detectors planted at shallow depths
US6563761B1 (en) * 2000-11-02 2003-05-13 Trw Inc. Apparatus and method of vehicle occupant sensing using multiple ultrasonic frequencies
RU2452978C1 (ru) * 2010-10-04 2012-06-10 Институт проблем морских технологий Дальневосточного отделения Российской академии наук (статус государственного учреждения) (ИПМТ ДВО РАН) Способ измерения расстояния до контролируемого объекта
RU2452979C1 (ru) * 2010-11-01 2012-06-10 Учреждение Российской академии наук Институт проблем морских технологий Дальневосточного отделения РАН (ИПМТ ДВО РАН) Способ измерения расстояния до контролируемого объекта
RU2452977C1 (ru) * 2010-11-11 2012-06-10 Учреждение Российской академии наук Институт проблем морских технологий Дальневосточного отделения РАН (ИПМТ ДВО РАН) Способ измерения расстояния до контролируемого объекта
RU2463624C1 (ru) * 2011-03-23 2012-10-10 Юрий Николаевич Жуков Гидроакустическая навигационная система
RU2492498C2 (ru) * 2011-11-17 2013-09-10 Российская Федерация, от имени которой выступает Министерство промышленности и торговли Способ определения направления на гидроакустический маяк-ответчик по горизонтальному и вертикальному углу
JP5965715B2 (ja) * 2012-04-27 2016-08-10 古野電気株式会社 超音波送受信装置、超音波送受信方法、および超音波送受信プログラム
EP3023813B1 (fr) * 2014-11-20 2020-10-14 CGG Services SAS Balayage sismique utilisant des harmoniques d'ordre impair

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3375896A (en) * 1966-04-15 1968-04-02 Pan American Petroleum Corp Low-frequency vibratory seismic surveying
US4037190A (en) * 1975-09-29 1977-07-19 Geophysical Systems Corporation Method of vibratory seismic prospecting for minimum correlation noise
US4147228A (en) * 1976-10-07 1979-04-03 Hydroacoustics Inc. Methods and apparatus for the generation and transmission of seismic signals
US4188610A (en) * 1977-08-29 1980-02-12 Hydroacoustics, Inc. Method of and apparatus for the generation and transmission of signals for echolocation and other signalling purposes, such as in geophysical exploration
US4204278A (en) * 1978-07-03 1980-05-20 Hydroacoustics Inc. Methods and apparatus for the generation and transmission of signals for echo location and other signalling purposes, as in geophysical exploration
US4207962A (en) * 1978-07-03 1980-06-17 Hydroacoustics Inc. Methods and apparatus for use in generating and transmitting acoustic signals
US4321427A (en) * 1979-09-18 1982-03-23 Sadanand Singh Apparatus and method for audiometric assessment
US4295213A (en) * 1979-10-09 1981-10-13 Exxon Production Research Company Composite seismic signal
GB2184236B (en) * 1981-07-27 1987-11-18 Gec Avionics Surveillance sonar for torpedo detection and guidance
US4680741A (en) * 1981-10-13 1987-07-14 Geosource, Inc. Method and apparatus for seismic exploration using non-linear sweeps
CA1187595A (fr) * 1981-10-13 1985-05-21 W. Harry Mayne Methode et dispositif de prospection sismique a balayage non lineaire
US4545039A (en) * 1982-09-09 1985-10-01 Western Geophysical Co. Of America Methods for seismic exploration
FR2566135B1 (fr) * 1984-06-18 1987-05-15 Inst Francais Du Petrole Procede pour optimiser le spectre de frequence des impulsions emises par des sources sismiques a implosion
US4729066A (en) * 1984-12-24 1988-03-01 Hydroacoustics Inc. Method and apparatus for the generation and transmission of signals for echo location and other signaling purposes, particularly in geophysical exploration

Also Published As

Publication number Publication date
EP0257231A2 (fr) 1988-03-02
AU593931B2 (en) 1990-02-22
US4758997A (en) 1988-07-19
NO872930L (no) 1988-02-26
NO872930D0 (no) 1987-07-14
AU7727387A (en) 1988-02-25
CA1277759C (fr) 1990-12-11
DE3784409D1 (de) 1993-04-08
EP0257231B1 (fr) 1993-03-03
NO171616B (no) 1992-12-28
EP0257231A3 (en) 1989-08-30
DK441087A (da) 1988-02-26
DK441087D0 (da) 1987-08-24

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