GB1136832A - Method of and apparatus for effectively increasing the contrast range of displayingthe results of underwater echo sounding - Google Patents

Method of and apparatus for effectively increasing the contrast range of displayingthe results of underwater echo sounding

Info

Publication number
GB1136832A
GB1136832A GB10455/66A GB1045566A GB1136832A GB 1136832 A GB1136832 A GB 1136832A GB 10455/66 A GB10455/66 A GB 10455/66A GB 1045566 A GB1045566 A GB 1045566A GB 1136832 A GB1136832 A GB 1136832A
Authority
GB
United Kingdom
Prior art keywords
echo
amplitude
transistor
attenuation
echo signals
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
GB10455/66A
Other languages
English (en)
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.)
ELAC Electroacustic GmbH
Original Assignee
ELAC Electroacustic GmbH
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 ELAC Electroacustic GmbH filed Critical ELAC Electroacustic GmbH
Publication of GB1136832A publication Critical patent/GB1136832A/en
Expired legal-status Critical Current

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
    • 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
    • G01S7/56—Display arrangements
    • G01S7/60—Display arrangements for providing a permanent recording
    • 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
    • G01S15/101—Particularities of the measurement of distance
    • 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
    • G01S7/523—Details of pulse systems
    • G01S7/526—Receivers
    • G01S7/527—Extracting wanted echo signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
GB10455/66A 1965-11-29 1966-03-09 Method of and apparatus for effectively increasing the contrast range of displayingthe results of underwater echo sounding Expired GB1136832A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE0030560 1965-11-29

Publications (1)

Publication Number Publication Date
GB1136832A true GB1136832A (en) 1968-12-18

Family

ID=7074585

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10455/66A Expired GB1136832A (en) 1965-11-29 1966-03-09 Method of and apparatus for effectively increasing the contrast range of displayingthe results of underwater echo sounding

Country Status (10)

Country Link
US (1) US3440598A (en:Method)
BE (1) BE686651A (en:Method)
DE (1) DE1516629B2 (en:Method)
DK (1) DK109827C (en:Method)
ES (1) ES330351A1 (en:Method)
FR (1) FR1601732A (en:Method)
GB (1) GB1136832A (en:Method)
IS (1) IS677B6 (en:Method)
NO (1) NO119514B (en:Method)
SE (1) SE358967B (en:Method)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133882A (en) * 1983-01-20 1984-08-01 Shell Int Research Circuit for controlling the magnitude of amplification of signals produced by a borehole televiewer

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3742438A (en) * 1970-11-10 1973-06-26 Simrad As Echo sounding apparatus with automatically regulated receiver gain
US4052692A (en) * 1975-11-24 1977-10-04 Freeman Arthur W Accentuator circuit for underwater acoustical devices
US4369508A (en) * 1978-12-15 1983-01-18 Lowrance Electronics, Inc. Sonar having signal amplitude differentiation and noise suppression
DE3133080C2 (de) * 1981-08-21 1983-05-26 Honeywell-Elac-Nautik Gmbh, 2300 Kiel Schaltungsanordnung für Echolotgeräte
DE3633420A1 (de) * 1986-10-01 1988-04-07 Krupp Gmbh Echolot

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3072882A (en) * 1958-09-04 1963-01-08 Raytheon Co Echo ranger with bottom signal amplitude compressor
US3017606A (en) * 1958-09-10 1962-01-16 Kietz Hans Echo sounding system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133882A (en) * 1983-01-20 1984-08-01 Shell Int Research Circuit for controlling the magnitude of amplification of signals produced by a borehole televiewer

Also Published As

Publication number Publication date
IS677B6 (is) 1969-03-26
BE686651A (en:Method) 1967-02-15
DE1516629A1 (de) 1969-06-12
DK109827C (da) 1968-07-08
FR1601732A (en:Method) 1970-09-14
NO119514B (en:Method) 1970-05-25
US3440598A (en) 1969-04-22
DE1516629B2 (de) 1970-10-29
ES330351A1 (es) 1967-06-16
SE358967B (en:Method) 1973-08-13
IS1544A7 (is) 1967-05-30

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