NO139620C - Doppler sonar-utstyr. - Google Patents

Doppler sonar-utstyr.

Info

Publication number
NO139620C
NO139620C NO743825A NO743825A NO139620C NO 139620 C NO139620 C NO 139620C NO 743825 A NO743825 A NO 743825A NO 743825 A NO743825 A NO 743825A NO 139620 C NO139620 C NO 139620C
Authority
NO
Norway
Prior art keywords
double
sonar equipment
sonar
equipment
double sonar
Prior art date
Application number
NO743825A
Other languages
English (en)
Norwegian (no)
Other versions
NO743825L (nl
NO139620B (no
Inventor
Seymour David Lerner
Original Assignee
Sperry Corp
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 Sperry Corp filed Critical Sperry Corp
Publication of NO743825L publication Critical patent/NO743825L/no
Publication of NO139620B publication Critical patent/NO139620B/no
Publication of NO139620C publication Critical patent/NO139620C/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
    • G01S15/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
    • G01S15/60—Velocity or trajectory determination systems; Sense-of-movement determination systems wherein the transmitter and receiver are mounted on the moving object, e.g. for determining ground speed, drift angle, ground track
    • 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
    • Y10S367/901—Noise or unwanted signal reduction in nonseismic receiving system

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Transducers For Ultrasonic Waves (AREA)
NO743825A 1973-10-25 1974-10-24 Doppler sonar-utstyr. NO139620C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US409522A US3863198A (en) 1973-10-25 1973-10-25 Doppler sonar utilizing period measurement with thresholded receivers

Publications (3)

Publication Number Publication Date
NO743825L NO743825L (nl) 1975-05-20
NO139620B NO139620B (no) 1979-01-02
NO139620C true NO139620C (no) 1991-02-22

Family

ID=23620864

Family Applications (1)

Application Number Title Priority Date Filing Date
NO743825A NO139620C (no) 1973-10-25 1974-10-24 Doppler sonar-utstyr.

Country Status (11)

Country Link
US (1) US3863198A (nl)
JP (1) JPS5711026B2 (nl)
CA (1) CA1021051A (nl)
DE (1) DE2450350C2 (nl)
ES (1) ES431110A1 (nl)
FR (1) FR2249347B1 (nl)
GB (1) GB1455060A (nl)
IT (1) IT1023127B (nl)
NL (1) NL183058C (nl)
NO (1) NO139620C (nl)
SE (1) SE404847B (nl)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2235374B1 (nl) * 1973-06-28 1977-08-05 Inst Francais Du Petrole
JPS5217064A (en) * 1975-07-30 1977-02-08 Matsushita Electric Ind Co Ltd Vehicle and speed detector unit
JPS6112862Y2 (nl) * 1981-03-31 1986-04-21
JPS58202119A (ja) * 1982-05-19 1983-11-25 Nissan Motor Co Ltd 自動車用置敷きカ−ペツト
US4713665A (en) * 1984-05-14 1987-12-15 Deere & Company Ground speed sensor
US4728954A (en) * 1984-12-20 1988-03-01 Deere & Company Ground velocity sensor with drop-out detection
DE3840109A1 (de) * 1988-11-28 1990-05-31 Deutsch Franz Forsch Inst Verfahren und einrichtung zur bestimmung der frequenz kurzer schwingungspakete elektrischer signale
DE102004006015A1 (de) * 2004-02-06 2005-08-25 Robert Bosch Gmbh Verfahren und Vorrichtung zur Anpassung eines Schwellwertes einer Detektionseinrichtung
US20100207805A1 (en) * 2009-02-19 2010-08-19 Agd Systems Limited Obtaining an indication of a number of moving objects passing speed detection apparatus
US8164976B2 (en) * 2009-08-06 2012-04-24 Unisyn Medical Technologies, Inc. Acoustic system quality assurance and testing
US8159900B2 (en) * 2009-08-06 2012-04-17 Unisyn Medical Technologies, Inc. Acoustic system quality assurance and testing
WO2011017646A1 (en) * 2009-08-06 2011-02-10 Unisyn Medical Technologies Acoustic system quality assurance and testing
US8169853B2 (en) * 2009-08-06 2012-05-01 Unisyn Medical Technologies, Inc. Acoustic system quality assurance and testing

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3795893A (en) * 1971-07-06 1974-03-05 Sperry Rand Corp Doppler speed log

Also Published As

Publication number Publication date
JPS5711026B2 (nl) 1982-03-02
NL183058B (nl) 1988-02-01
DE2450350A1 (de) 1975-05-15
NO743825L (nl) 1975-05-20
NL7413933A (nl) 1975-04-29
SE7413392L (nl) 1975-04-28
US3863198A (en) 1975-01-28
JPS5075069A (nl) 1975-06-20
GB1455060A (en) 1976-11-10
SE404847B (sv) 1978-10-30
NL183058C (nl) 1988-07-01
DE2450350C2 (de) 1983-08-25
FR2249347B1 (nl) 1980-10-17
CA1021051A (en) 1977-11-15
FR2249347A1 (nl) 1975-05-23
NO139620B (no) 1979-01-02
IT1023127B (it) 1978-05-10
ES431110A1 (es) 1976-11-01

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