IT1080117B - Oscillatore a controllo digitale particolarmente per ricettrasmettitori sonar - Google Patents

Oscillatore a controllo digitale particolarmente per ricettrasmettitori sonar

Info

Publication number
IT1080117B
IT1080117B IT50741/77A IT5074177A IT1080117B IT 1080117 B IT1080117 B IT 1080117B IT 50741/77 A IT50741/77 A IT 50741/77A IT 5074177 A IT5074177 A IT 5074177A IT 1080117 B IT1080117 B IT 1080117B
Authority
IT
Italy
Prior art keywords
digital control
control oscillator
sonar transceivers
oscillator particularly
sonar
Prior art date
Application number
IT50741/77A
Other languages
English (en)
Original Assignee
Hollandse Signaalapparaten Bv
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 Hollandse Signaalapparaten Bv filed Critical Hollandse Signaalapparaten Bv
Application granted granted Critical
Publication of IT1080117B publication Critical patent/IT1080117B/it

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
    • 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
    • Y10S367/904—Doppler compensation systems

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)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
IT50741/77A 1976-08-26 1977-08-22 Oscillatore a controllo digitale particolarmente per ricettrasmettitori sonar IT1080117B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7609475,A NL184861C (nl) 1976-08-26 1976-08-26 Digitaal bestuurde oscillator.

Publications (1)

Publication Number Publication Date
IT1080117B true IT1080117B (it) 1985-05-16

Family

ID=19826798

Family Applications (1)

Application Number Title Priority Date Filing Date
IT50741/77A IT1080117B (it) 1976-08-26 1977-08-22 Oscillatore a controllo digitale particolarmente per ricettrasmettitori sonar

Country Status (12)

Country Link
US (1) US4169256A (it)
JP (1) JPS5912147B2 (it)
AU (1) AU505292B2 (it)
BE (1) BE858023A (it)
CA (1) CA1078473A (it)
DE (1) DE2738020C2 (it)
FR (1) FR2363115A1 (it)
GB (1) GB1582187A (it)
IT (1) IT1080117B (it)
NL (1) NL184861C (it)
NO (1) NO148047C (it)
SE (2) SE421728B (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4305151A (en) * 1979-05-31 1981-12-08 Sperry Corporation Digital discriminator for determining frequency error of an oscillator
FR2525774B1 (fr) * 1982-04-23 1986-02-07 Thomson Csf Dispositif de filtrage adaptatif de signaux recus par un sonar actif pour la rejection de la reverberation
JPH01162341U (it) * 1988-04-28 1989-11-13
US7733149B2 (en) * 2008-06-11 2010-06-08 Pmc-Sierra, Inc. Variable-length digitally-controlled delay chain with interpolation-based tuning

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3370266A (en) * 1965-09-13 1968-02-20 Hughes Aircraft Co Frequency synthesizing system
US3675146A (en) * 1971-03-08 1972-07-04 J Michael Langham Digital variable frequency oscillator
US3798564A (en) * 1971-03-08 1974-03-19 J Langham Digital frequency multiplier
FR2172566A5 (it) * 1972-02-18 1973-09-28 Thomson Csf
US3810038A (en) * 1972-11-14 1974-05-07 Itt System for deriving from a single stable oscillator a plurality of different selectable local oscillator signal
SE372393B (it) * 1973-11-22 1974-12-16 Ericsson Telefon Ab L M

Also Published As

Publication number Publication date
US4169256A (en) 1979-09-25
AU505292B2 (en) 1979-11-15
NL184861B (nl) 1989-06-16
NL7609475A (nl) 1978-02-28
DE2738020C2 (de) 1987-03-12
DE2738020A1 (de) 1978-03-09
FR2363115B1 (it) 1983-02-18
NL184861C (nl) 1989-11-16
JPS5912147B2 (ja) 1984-03-21
JPS5327452A (en) 1978-03-14
SE421728B (sv) 1982-01-25
NO148047B (no) 1983-04-18
GB1582187A (en) 1980-12-31
SE7709474L (sv) 1978-02-27
BE858023A (nl) 1977-12-16
NO148047C (no) 1983-08-10
CA1078473A (en) 1980-05-27
AU2812177A (en) 1979-03-01
NO772833L (no) 1978-02-28
FR2363115A1 (fr) 1978-03-24

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