[go: up one dir, main page]

GB2018992A - An Echo Regulator for Sonar Systems - Google Patents

An Echo Regulator for Sonar Systems

Info

Publication number
GB2018992A
GB2018992A GB7912275A GB7912275A GB2018992A GB 2018992 A GB2018992 A GB 2018992A GB 7912275 A GB7912275 A GB 7912275A GB 7912275 A GB7912275 A GB 7912275A GB 2018992 A GB2018992 A GB 2018992A
Authority
GB
United Kingdom
Prior art keywords
echo
sonar
regulator
attenuator
attenuation
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.)
Granted
Application number
GB7912275A
Other versions
GB2018992B (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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Publication of GB2018992A publication Critical patent/GB2018992A/en
Application granted granted Critical
Publication of GB2018992B publication Critical patent/GB2018992B/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
    • G01S7/523—Details of pulse systems
    • G01S7/526—Receivers
    • G01S7/529—Gain of receiver varied automatically during pulse-recurrence period

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

The invention relates to an echo regulator for regulating echos received by an active sonar, particularly with a view to displaying these echos. The echo signals are amplified by a variable-gain amplifier (2) and applied to a high-pass filter (3) connected to the display unit (1). An attenuator (4) is controlled by a circuit for calculating the attenuation of the sonar signals, taking into account the range of the target and the decentering of the direction of the target in relation to the direction of maximum radiation of the sonar. The gain of the amplifier (2) is regulated in dependence upon the attenuation of the attenuator (4). Application to the detection of mines situated near the seabed. <IMAGE>
GB7912275A 1978-04-11 1979-04-06 Echo regulator for sonar systems Expired GB2018992B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7810614A FR2422964A1 (en) 1978-04-11 1978-04-11 SONAR ECHO REGULATION DEVICE

Publications (2)

Publication Number Publication Date
GB2018992A true GB2018992A (en) 1979-10-24
GB2018992B GB2018992B (en) 1982-08-18

Family

ID=9206946

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7912275A Expired GB2018992B (en) 1978-04-11 1979-04-06 Echo regulator for sonar systems

Country Status (3)

Country Link
DE (1) DE2914771A1 (en)
FR (1) FR2422964A1 (en)
GB (1) GB2018992B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8372007B2 (en) 2008-07-25 2013-02-12 Furuno Electric Co., Ltd. Method and device of detecting shape and bone strength diagnostic device using the device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985005694A1 (en) * 1984-05-30 1985-12-19 Simrad Subsea A/S Device in an echo sounding or sonar system
DE4003774A1 (en) * 1990-02-08 1991-08-14 Fraunhofer Ges Forschung METHOD FOR COMPENSATING THE DISTANCE-DEPENDENT SOUND INTENSITY OF AN ULTRASONIC DISTANCE MEASURING SENSOR

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8372007B2 (en) 2008-07-25 2013-02-12 Furuno Electric Co., Ltd. Method and device of detecting shape and bone strength diagnostic device using the device

Also Published As

Publication number Publication date
FR2422964B1 (en) 1982-06-18
FR2422964A1 (en) 1979-11-09
DE2914771A1 (en) 1979-10-31
GB2018992B (en) 1982-08-18

Similar Documents

Publication Publication Date Title
US4198702A (en) Time varying gain amplifier for side scan sonar applications
EP0231721A3 (en) Automatic gain control for hearing aid
FR2430019A1 (en) RADAR RECEIVER AMPLIFIER CIRCUIT
GB2018992A (en) An Echo Regulator for Sonar Systems
GB1350535A (en) Device for neutralizing fire-control radar
GB2011749A (en) Fixed echo canceller for radar systems
SE7902539L (en) METHOD AND DEVICE FOR COMPRESSION OF THE DYNAMICS FROM RECEIVED RETURNED SIGNALS
JPS5742242A (en) Two-wire type bidirectional amplifier system
FR2707061B1 (en)
FR2097938A5 (en) Detection of leaks - in dangerous surroundings using noise level
JPS5649966A (en) Plane indication device and storing method therefor
JPS5443700A (en) Vehicle detector using ultrasonic wave
JPS54111070A (en) Phase controlling circuit
JPS54665A (en) Detecting method and system of ultrasonic signals
JPS57100362A (en) Ultrasonic wave measuring device
JPH0240191B2 (en) SOONAASOCHI
JPS61292581A (en) Agc apparatus for underwater detector
JPS5590871A (en) Controlling system for amplitude of reception signal in sonar device
SU1741551A1 (en) Azimuth-signal automatic gain control device for short-range navigation system radio receiver
JPS56130671A (en) Multitarget tracking device
JPS5468273A (en) Mimic target
JPS52106253A (en) Automatic gain control unit
JPS561372A (en) Noize reducing system in radar
Sheriff et al. Optimal Rectangular Transducers for the Inspection of Curved Surfaces
SE8000272L (en) DEVICE AT THE GIRL

Legal Events

Date Code Title Description
PG Patent granted