IT1080117B - Oscillatore a controllo digitale particolarmente per ricettrasmettitori sonar - Google Patents
Oscillatore a controllo digitale particolarmente per ricettrasmettitori sonarInfo
- 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
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)
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)
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)
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 |
-
1976
- 1976-08-26 NL NLAANVRAGE7609475,A patent/NL184861C/xx not_active IP Right Cessation
-
1977
- 1977-08-09 CA CA284,349A patent/CA1078473A/en not_active Expired
- 1977-08-10 GB GB33428/77A patent/GB1582187A/en not_active Expired
- 1977-08-12 NO NO772833A patent/NO148047C/no unknown
- 1977-08-17 US US05/825,306 patent/US4169256A/en not_active Expired - Lifetime
- 1977-08-22 FR FR7725544A patent/FR2363115A1/fr active Granted
- 1977-08-22 IT IT50741/77A patent/IT1080117B/it active
- 1977-08-23 DE DE2738020A patent/DE2738020C2/de not_active Expired
- 1977-08-23 AU AU28121/77A patent/AU505292B2/en not_active Expired
- 1977-08-23 BE BE180360A patent/BE858023A/xx not_active IP Right Cessation
- 1977-08-23 SE SE7709474A patent/SE421728B/xx not_active IP Right Cessation
- 1977-08-23 SE SE7709474D patent/SE7709474L/xx not_active Application Discontinuation
- 1977-08-24 JP JP52100677A patent/JPS5912147B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5912147B2 (ja) | 1984-03-21 |
SE421728B (sv) | 1982-01-25 |
US4169256A (en) | 1979-09-25 |
JPS5327452A (en) | 1978-03-14 |
NL184861C (nl) | 1989-11-16 |
SE7709474L (sv) | 1978-02-27 |
FR2363115B1 (it) | 1983-02-18 |
NO148047B (no) | 1983-04-18 |
NL7609475A (nl) | 1978-02-28 |
FR2363115A1 (fr) | 1978-03-24 |
NO148047C (no) | 1983-08-10 |
NO772833L (no) | 1978-02-28 |
AU2812177A (en) | 1979-03-01 |
DE2738020C2 (de) | 1987-03-12 |
NL184861B (nl) | 1989-06-16 |
CA1078473A (en) | 1980-05-27 |
BE858023A (nl) | 1977-12-16 |
AU505292B2 (en) | 1979-11-15 |
GB1582187A (en) | 1980-12-31 |
DE2738020A1 (de) | 1978-03-09 |
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